Allwinner sunxi

Hello, this is not a big problem, but for me makes a board useless I use orange pi to control ralays thru GPIOs it works flawless on Orange PI PC, PC+, One so I decided to buy Orange PI Lite and I discovered that all gpio are set to high for half a second and then back to low, while unit power up or restarts. Just like an internet router It do that even without a SD card, that points this is coded into U-Boot. Any idea how to fix that?

Hi you all, I have flashed a good, tested and reliable 32GB SD card with the last build for Orange PI Win (armbian 5.38) and when first updating, it stucks in "waiting for headers" for too long. I have read that this is caused in Linux systems because one installs third party software whose repos take long to answer, but since here it is a first and fresh update, with nothing but armbian inside, I ask myself if it is normal or there is a problem with the servers at this moment. Only apt-get update ca take up to 1h 30 min, so it is really an annoying issue. Is anyone out there experiencing the same problem (and hopefully with a solution) ?? Thank you guys!…

Last year I tried the 5.30 and was not happy, as the PI did not give signal to HDMI, when monitor was plugged in while booting. After booting, plug in HDMI cable, picture was on monitor. Now tried the newer Armbian_5.38 on a 2nd Orange PI PC, and I get NO picture / signal on HDMI. Nothing. Have also changed to several resolutions, but no image on monitor or beamer. I have also tried the "DVI adapter option" in the "armbian config". What is wrong with it? I have 2 PI PCs. Same problem on the other PI (now there runs a PI HOLE, as I was not able to get a picture without un-pluging the HDMI cable, so I switched over to a Banana PI M1 for…

We flash hundreds of Orange PI 3 LTS boards with stock Armbian Debian Bullseye via nand-sata-install to install it on the onboard eMMC storage. Some boards after running for a week or more would randomly give this error and fail to boot: Begin: Running /scripts/local-block ... done. done. Gave up waiting for root file system device. Common problems: - Boot args (cat /proc/cmdline) - Check rootdelay* (did the system wait long enough?) - Missing modules (cat /proc/modules: ls /dev) ALERT! /dev/mmcblk0p1 does not exist (initramfs) We can turn the board on and off as many times as we want, the error persists. We can fix the problem by booting it fr…

Hi. I'd want to set a custom MAC address to my cb2. I set the static mac address in u-boot environment variable ethaddr. If i print the environment (with "printenv command" i find it right there but when the system starts and i go through ifconfig i can see eth0 has a different MAC. Any suggestion on how to get MAC from u-boot? I'm on Armbian 5.20 legacy kernel. Thank you

hi Orangepi plus 2e; Armbian 5,38 with Ubuntu xenial 16.4 Normally my OrangePi works pretty fine, but today I tested lirc. I activated lirc by armbian-config, changed something in /etc/lirc/hardware.conf Spoiler /etc/lirc/hardware.conf REMOTE_MODULES="sunxi_cir" REMOTE_DEVICE="/dev/lirc0" REMOTE_LIRCD_CONF="" REMOTE_LIRCD_ARGS="" #Enable lircd START_LIRCD="true" #Try to load appropriate kernel modules LOAD_MODULES="true" DRIVER="default" DEVICE="/dev/lirc0" MODULES="sunxi-cir" …

Hi, I'm trying to use hardware acceleration on my OrangePi PC+ (H3) board, and when I try to compile v4l2-request, it complains for undefined constants. These constants are supposed to be declared in /usr/include/linux/videodev2.h, but looks like a very old version of this file is distributed in the latests Armbian images for my board. Some missing headers: V4L2_PIX_FMT_MPEG2_SLICE, V4L2_PIX_FMT_SUNXI_TILED_NV12 Looks like these #define have been introduced more than two years ago in the mainline kernel : https://github.com/torvalds/linux/blame/d5beb3140f91b1c8a3d41b14d729aefa4dcc58bc/include/uapi/linux/videodev2.h#L698 Even more weird: a later …

Hi Igor, I've a Pcduino 3 (not B or nano). Can you build an image for him? .FEX exists (https://github.com/linux-sunxi/sunxi-boards/blob/master/sys_config/a20/linksprite_pcduino3.fex) and I think the difference it's only a patch for GMAC. I'm newbee and I try to install your system on my board but I don't know how... I followed your post on Armbian...I created ' output ' but now? What am I doing? which files write on sdcard and how (dd?) May be I didn't see the tuto after to build image... Best regards JohnGO

I am trying to figure out how to make the Orange Pi Zero a USB gadget. Preferably a USB Vendor Device but a mass storage device would work for now. I was able to successfully create the ethernet gadget. (Using Armbian_3.4.112_g_ether_kernel.tar.bz2) That is pretty cool. But I would like the mass storage or vendor device. I was playing around with modprobe but I am not really sure what I am doing. Module g_mass_storage is not found. I have searched this site and online for the last few hours and just got more confused. Thanks for any help.

Hi Is there any chance to force OrangePi PC to use 1920x1200 resolution? There's no such mode in h3disp. I tried to modify h3disp script but no luck. 1080p60 -d works well, but it's wrong aspect ratio. Please help.

I have Orange Pi Zero Plus (H5 CPU) and Huawei E303 HiLink USB modem. The modem doesn't have any enabled interfaces such as CD-ROM, SD CARD, and other unusuable stuff except RNDIS interface (I want to believe that AT commands really disables it). When Armbian is started, connected to USB modes normally starts and system has new network interface and all works fine. When I try to power on board with connected modem, Armbian doesn't start, onboard LED doesn't light, modem starts normally and indicate normal link (blue LED lights). Here is log when modem hot-plugged: Spoiler Mar 18 04:17:04 localhost kernel: [ 9.033246] usb 3-1: new high-speed…

Hello community, I'm looking to build an internet cube (https://internetcu.be/). Basically, the project uses an A20-OLinuXino-LIME2 but I'm looking to see if a better armbian could do the job. Prerequisites are quite similar to a NAS : quality, stability, performance, minus 80$, Gibabit LAN, SATA, USB. So I have 4 models in mind: - Banana pro - Banana pi - A20-OLinuXino-LIME2 - Espressobin Which one is best suited and/or do you have other models in mind?

After installing Armbian_community_26.11.0-trunk.62_Orangepiplus_trixie_current_6.18.54_minimal.img.xz on the Orange Pi PC Plus, the USB keyboard does not work.

Hi, I´ve just search in all forum for the A20-Banana Pro. And I must realize, that it doesn't give a Armbian5.0-Trusty-without-desktop ISO or RAW. Therefore I once wanted to ask if this for "Legacy" and / or "Vanilla" possibly still comes? Because I seek the server version of "Ubuntu Trusty" for my Banana Pi Pro. Best regards, Inu

Hello, I know this is slightly the wrong subforum... I'm using an OrangePi PC2 with ARMBIAN 5.34.171109 nightly Ubuntu 16.04.3 LTS 4.13.11-sunxi64 I tried installing rpimonitor using rpimonitor -r after creating a "pi" user and a "pi" group That part worked. Afterwards, it told me that the webserver would be available at 192.168.0.xxx:8888 I tried that. Surprisingly, not the customized version of OrangePi-Monitor appeared, but the "original" RPI Verison. I fixed that copying /etc/rpimonitor/template/OrangePI_xx.conf to /etc/rpimonitor/template/data.conf. After restarting, it actually works, but placeholde…

Hi! Not found covered this question in blog / general faq. Where to setup, which blockdevice get mounted as drive on client usb port?

Hi all, anyone had success with rtl8723bs sdio wifi + bt module? I'm figuring out how to make it work on a cubieboard2. Any suggestion would be much appreciated.

Hey all, Have been using my Banana Pro w/ Armbian & a 1tb HDD as a Micro Home Server w/ Bittorrent Sync/Samba Shares/Webmin. I attempted to install Syncthing from the install script and it errored after saying "package cant be opened" It became unresponsive to commands. I powered it off then on again and it says "Bad crc error" at boot & seems to find its dhcp IP but hangs.. Google searches havent helped me resolve the issue, thanks.

Fresh installation of Armbian On OrangePie+ 2e Not Shutting Down Network lights still on ..... BT still On but not SSH connectivity neither image on monitor any ideas ? Thanks

I bought an OPi Zero, the extension board, a 1/8-to-rca audio/video cable to plug into the AV jack of the extension board, and a 16 GB SDHC card. Loaded Armbian Stretch onto it, plugged in ethernet without any of the AV stuff just to start. The Pi doesn't even show up on my router settings so I cannot access it via Putty or any other SSH program. I turn it off, attach the extension board and av cable, and plug it into the TV in the hopes that I can start working on something with a USB keyboard...nothing shows up on the TV. I'm hoping that's a software issue and not an issue with the actual extension board I bought. I know for a fact it's loading Armbian because I can act…

Hi All, I'm trying to enable SPI2 on a A20 Olinuxino LIME board. I found an old post on this forum regarding LIME2, so I try the same and in armbianEnv.txt I add the lines: overlays=spi2 spi-spidev param_spidev_spi_bus=2 param_spi2_bus_pins=b At reboot, the message: Failed to load '/boot/dtb/overlay/sun7i-a20-spi2.dtbo' I think because the file is not found Only SPI0 is active How can I enable SPI2 ? Thanks in advance PaoloC

/proc/cpuinfo does not list serial number How do I read the chip serial number?

At Raspberry Pi (at least on R.Pi 4) it is possibility to set up more than one 1-wire bus. Can that be done on Orange Pi plus 2e with Armbian? uname -a Linux XXXXXXXXXXX 5.15.93-sunxi #23.02.2 SMP Fri Feb 17 23:49:46 UTC 2023 armv7l armv7l armv7l GNU/Linux /boot/armbianEnv.txt verbosity=1 bootlogo=false console=both disp_mode=1920x1080p60 overlay_prefix=sun8i-h3 rootdev=UUID=d908a8da-8d2e-4802-8a05-aaab4f3290bb rootfstype=ext4 overlays=w1-gpio param_w1_pin=PD14 param_w1_pin_int_pullup=0 usbstoragequirks=0x2537:0x1066:u,0x2537:0x1068:u If it is possible: Any tip on configuration will make me happy. And can it be internal pu…

Nanopi neo air stucks on "Starting kernel..." after some random power losses (2-50) during loading I think it's because of corruption of armbianEnv.txt. Normal UART logs: UART Logs with stucking on "Starting kernel" U-Boot SPL 2024.01_armbian-202ns16550_serial serial@1c28000: p024.01-S866c-P7738-Hadc5-Vefe9-B2eb2-R448a (Feb 06 2026 - 03:49:45 +0000) Allwinner Technology 0) Model: FriendlyARM NanoPi NEent from FAT... Unable to use mmc 1:1... ial Err: serial Net: No ethernet found. starting USB... No working controllers found 1(part 0) is current device Scacr 5475 bytes read in 2 ms (2.6 MiB/s) ## Executing script at 43100000 U-boot loaded from eMMC or s…

I am using GPIO(CON3) pins 8 and 10 for a project. In BPI M1+, functions for those pins are PH0 and PH1 respectively. https://bananapi.gitbooks.io/bpi-m1-bpi-m1-plus-/content/en/bpi-m1+_gpio_pin_define.html But, when I added overlays=uart3 ,I didn't work properly . When I checked the overlay file sun7i-a20-uart3.dtbo , by changing it to .dts , I figured out that this overlay file uses PG6,PG7 pins, not PH0,PH1 pins. So, to modify the configurations without adding uart3 overlay in the /boot/armbianEnv.txt file, I wanted to edit the /boot/dtb/sun7i-a20-bananapi-m1-plus.dtb file. When I check the file, there are uart3_pins_a option and uart3_pins …

Hello, I'm trying to make MB1242 sonar working with my nanopi but every time I run i2cdetect, I got "i2c i2c-0: mv64xxx: I2C bus locked, block: 1, time_left: 0". Sonar works fine on RPI after changing i2c_baudrate to 50000. Is there any way to do the same at nanopi?

No sound via the hdmi port to hdmi tv port however I can use headphones with the 3.5 mm audio jack and it works fine. Not sure if my board is broken either. I just got it. The only image that works with my orange pi pc plus is Armbian Stretch edition. The ones I have tried thus far are armbian xenial multimedia edition, retrorangepi, android 7 from orangepi website they all don't work haven't tried bionic armbian edition though. But that is for another post just thought to mention that. 1. Logs when you can boot the board: armbianmonitor -u https://pastebin.com/e5xb2gZD

I'm trying to send a music from my NAS on the base of Cuibetruck (Allwinner Tech SOC A20 ARM Cortex-A7 Dual-Core T) Ubuntu Xenial with Armbian Linux 3.4.113-sun7i with bluealsa to my bluetoothreceiver connected to speakers. My working configs are in my answer to the question: https://askubuntu.com/questions/1197072/sending-audio-to-bluetooth-speaker-with-bluealsa Anyway when I play mp3 with mpd or wav with aplay the music is extremely stuttering. Question on bluealsa Github (https://github.com/Arkq/bluez-alsa/issues/279) ended with advice to check UART set up (which is already too complicated for me). My question is anybody managed to setup a nice and smooth audio ou…

Hello, Is there anyone that has problem with USB keyboard on armbian 20.11.9 buster. I have tried both 20.11.6 and 20.11.9 buster nut the keyboard can't be recognized in armbian. (caplock, numlock LED don't work as well) I tried 4 USB ports on the port but doesn't work. The keyboard is working fine with my Windows PC. Thanks

Hi, is this the right place to ask about support to configure a dtb overlay? I created a .dts file for my ILI9341 TFT display which is connected to a cubietruck running armbian. most of it I copied from the internet and adapted my changed (pin configuration and spi device). Previously I my configuration was done in a fex file and also created a pcb to connect the display to the cubietruck. See german documentation https://klautesblog.blogspot.com/2015/12/ili9341-22-tft-display-am-cubietruck.html?m=1 It worked perfectly but now I’m facing some issues with the new system. Armbian: Armbian 21.08.1 Focal Kernel …

hi, since 2 days i am using on my Banana Pi the Debian Jessie with 4.8.15 Kernel with installed Openmediavault 3. The system is working stable, but the network-performance is less then my older Installation based on Debian Wheezy with Openmediavault 2. I tried change the MTU-Size to 9000 and overcklocking up to 1.2 GHz, booth is not possible. I don´t know why ? For the setting the MTU-Size i edited /etc/network/interfaces and added the value "mtu 9000" -> no effects I tried set the MTU over the OMV WebGUI under network settings -> no effects. ifconfig shows me MTU=1500 Booth ways was at Debian Wheezy possible. At Debian Wheezy i had overclock the …

Hello. I have an Orange Pi PC+. I've just dd-ed Armbian 5.30 to an SD card and booted it up. Whenever i try to set the resolution to anything aside from the default 1280x720, then i only get a black screen. (I did not tried all possibilites.) How can i set my resolution to 800x480? It's connected via HDMI to a small LCD screen panel with this board. The output of h3disp: Usage: h3disp [-h/-H] -m [video mode] [-d] [-c [0-2]] ############################################################################ This is a tool to set the display resolution of your Orange Pi by patching script.bin. In case you use an HDMI-to-DVI converter p…

On the download page images have kernel 4.18-rc7 I need headers for this kernel. How to find which commit is these images are built from?

Hello Forum, please excuse my bad English. I try setting up a stratum1-server. Based on GPS. For this I use the Banana Pi with kernel 4.6.2 and the Adafruit GPS. The GPS is connected to GPIO J12 and works. RX/TX is not the problem. The problem is the right pin for the PPS-signal. dmesg|grep pps* [ 0.001207] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000) [ 0.067281] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 4 [ 3.260009] pps_core: LinuxPPS API ver. 1 registered [ 3.260018] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>…

Hi there, I installed the Desktop version of Jessie, it was working good, but after I wanted to check the Server version too "Armbian_5.14_Orangepione_Debian_jessie_3.4.112.7z", but it just wont boot up, no Led's glows up on the board. Tried more times to install on different MicroSD cards, but I got the same non boot results. Just to mention that the Desktop version is working on all MicroSD cards I tried! Thank you for your answer! Kind regard

gpio load i2c modprobe: FATAL: Module i2c-sunxi not found in directory /lib/modules/4.14.111 By looking at example of WiringPI (for Raspberry), I tried the above command, result is shown. I'm newbie, so I need to figure out how to send commands via i2c to an external device. But first, how do I even enable i2c on Neo Plus2? Or is it enabled on default? I saw on this forum suggestion to add: a line "overlays=i2c0 i2c1" in /boot/armbianEnv.txt However, my boot directory is full, so and I get error 514 whenever I try to add anything to armbianEnv.txt (which is empty) Here's disk usage: I added 10K pull up resistors between…

**Is this the correct location, or it should be at the other supported boards? It seems that DT overlays are not working root@orangepizero2:~# cat /boot/armbianEnv.txt verbosity=1 console=serial disp_mode=1080p60 fb0_width=1280 fb0_height=720 rootdev=UUID=b8899b39-b6cb-4718-bdbb-e1b39816db74 rootfstype=ext4 overlays=w1-gpio param_w1_pin=PC9 param_w1_pin_int_pullup=1 usbstoragequirks=0x2537:0x1066:u,0x2537:0x1068:u Boot log: Spoiler [41]HELLO! BOOT0 is starting May 13 2020 14:10:04! [46]BOOT0 commit : 593cf83 [48]set pll start [51]periph0 has been enabled [54]set pll end [56]unknow PMU [57]PMU: AXP806 [64]vaild para:1 select dram …

Hi, i use Debian Stretch 9.3 on a Cubitruck, it run‘s with a 3.14-Sunix Kernel, i wan‘t to Upgrade to a newer Kernel like 4.X, how ca i do that? Thank you? Gesendet von iPhone mit Tapatalk

Hello Maybe it will help someone. I lost a lot of time trying to connect 1-wire to Cubieboard2 via DVK 522 (it has DS18B20 connection on PB10 /gpio 66/ with external pullup). I've done steps in http://linux-sunxi.org/1-Wire with different combination and it doesn't work. In /sys/bus/w1/devices i had only sth like 00-80... 00-40... 00-c00.. without w1_slave file (i was 100% sure of hardware - it works on waveshare debian image) SOLUTION: In /boot/armbianEnv.txt lines needs to be without comments: and that's it ( overlays are created automatically by config so it will be sth like for…

I have a local OpenVPN server on Banan Pi M1, with latest armbian. I tried to replace with OrangePi3 but current results is disappointing iperf3 results on Banana Pi M1 OpenVPN server Connecting to host bouygues.iperf.fr, port 5201 [ 4] local 10.8.0.4 port 46250 connected to 89.84.1.222 port 5201 [ ID] Interval Transfer Bandwidth [ 4] 0.00-1.00 sec 1.69 MBytes 14.1 Mbits/sec [ 4] 1.00-2.00 sec 1.81 MBytes 15.1 Mbits/sec [ 4] 2.00-3.00 sec 2.43 MBytes 20.4 Mbits/sec [ 4] 3.00-4.00 sec 681 KBytes 5.58 Mbits/sec [ 4] 4.00-5…

Greetings, as noted in the title I have a Plus 2E and I am trying to use the built in wifi to enable a wifi access point. I followed the instructions and video which recommended using armbian-config to create a hotspot. That utility failed to create the hotspot so I ran hostapd manually to find the issue and the following errors were reported (I will attach a file with complete output: ioctl[RTL_IOCTL_HOSTAPD]: Operation not supported wlan0: Could not connect to kernel driver I spent a couple hours searching and it seems related to the driver support AP mode. I haven't gone down the hole of trying to rebuild the driver yet because I'm not su…

Hello, is BPI-6202/6204 supported? It should have A40I CPU, like the M2 Ultra (which is actually supported)

Hi friends. I need get information about input voltage. When I start armbianmonitor -m, so I see this information. Any idea, how to get this information in python? Or I need only one command to read this value. My board is: cubieboard2 with armbian. Thank you.

Hi @all, I currently try to build a door-opener with a NanoPi Neo and a MFRC522 Rfid-Module. Unfortunately I don't get the SPI working. I loaded the newest Armbian-Debian from the Website: uname -r = 4.14.18-sunxi and downloaded the SPI-library for NanoPi: https://github.com/wertyzp/WiringNP By using armbian-config I activated "pwm", "sei-add-cs1", "spi-jedec-nor" and "spi-spidev". The problem: If I try to activate SPI with gpio load spi I get the following error-message: modprobe: FATAL: Module spi-sun7i not found in directory /lib/modules/4.14.18-sunxi gpio: Unable to load spi-sun7i So it seems that wiringNp d…

I test in Orange pi lite libMali.so, both X11 and framebuffer. Xenial' X11 mode tests by glxgears fps is around 250-270 but Jessie is around 400-420, billiard game that use Opengl is noticable different. For framebuffer, I use retroarch that also noticable slow in Xenial. Anyone know why Xenial libMali is slower than Jessie?

Hi, I have found a problem when I reboot my NanoPi Neo, related to WiFi + BL device which is plugged in USB 2.0 port. The WiFi device is a Realtek 8821cu and system loads driver correctly when I do a cold boot or if I hot-plug it, but it fails in a warm boot. After doing many tests, I realized that if I plug the WiFI dongle in a non-powered USB 2.0 hub and I connect this latter to the NanoPi Neo's USB 2.0 port, then it also works. I don't have anymore idea to solve it. The 8821cu driver fails because WiFi device shows itself like powered down.

Hi, I need to use the i2c in the u-boot stage. I've added a patch that enables this i2c bus in the device-tree, and when I run this command (just for example): sudo i2cset -y 2 0x1b 0x1 0xf AFTER the boot stage it seem to work. However when I try this command IN THE boot stage, I get: Unknown command 'i2cset' - try 'help'. 1. I guess I'm trying to use 'i2cset' in a too early stage - any idea how to control the i2c in the u-boot stage or how to make 'i2cset' available at the u-boot stage ? 2. Since 'i2cset' doesn't work in the u-boot stage, I don't know if the i2c is enabled at this stage (I know it's enabled after boot) - how can…

Hi I have issue to run bluetooth on OrangePI Zero Plus2 H5 with Armbian 4.14.63-suxi64 - what I donloaded from the armbian page where is my device and this image is supported. Wifi is working but I have issue tu run Bluetooth - I read many topics here but I dont understand what to do. Maybe Im doing some wrong. Can someone advice me what should be done, please. Current status after installation: * ap6212-bluetooth.service - LSB: Patch firmware for ap6212 adapter Loaded: loaded (/etc/init.d/ap6212-bluetooth; generated; vendor preset: enabled) Active: failed (Result: exit-code) since Thu 2019-10-31 08:45:14 UTC; 24min ago Docs: ma…

Hi, Nanopi R1 - Kernel and Armbian version: 4.19.62-sunxi #5.92 I have the following problem: If I put the ethernet cable on the interface, and then turn on the nano pi, the interface receives a valid ip. But the problem is, if I start nanopi without the cable connected, and I connect after system boot, the interface does not receive ip configuration. Configs and logs: /etc/network/interfaces: source /etc/network/interfaces.d/* auto eth0 iface eth0 inet dhcp auto eth1 iface eth1 inet static address 10.100.3.1 netmask 255.255.255.0 gateway 10.100.3.1 auto lo iface lo inet loopback up command iptables-rest…

Hi i have orange pi lite board, i run :ARMBIAN 5.31 stable Ubuntu 16.04.3 LTS 3.4.113-sun8i on this boards and works fine, but when I turn on the card there is no text in the hdmi output until it finishes loading the operating system, how i can configure the armbian to see the boot text?? i can see the boot text by USART port, but i want to configure by HDMI monitor. Best Regards Nelson

Hi If i boot my cubieboard2, sometimes it's visible on network, and reachable, sometimes not at all. After that, it isn't changes. No problem with the LAN cable, i've tried two. Also the speedtest shows the maximum bandwidths in both directions (~92 mbit/sec). The system boots always, as i see from logs. Here is from the log: sudo cat /var/log/messages | grep ether Feb 23 09:14:43 localhost kernel: [ 2.059648] sun7i-dwmac 1c50000.ethernet: PTP uses main clock Feb 23 09:14:43 localhost kernel: [ 2.059661] sun7i-dwmac 1c50000.ethernet: no reset control found Feb 23 09:14:43 localhost kernel: [ 2.059690] sun7i-dwmac 1c50000.e…

Hello folks! I'm investigating an odd issue of the OPi R1 board, with the image Armbian_5.83_Orangepi-r1_Debian_stretch_next_4.19.38. With this version of software the board works fine, but apparently the wifi cannot reconnect after a disconnection (error: association request to the driver failed) The only workaround I found is to manually bring down the wifi interface and then back up; then the reconnect is almost immediate. I tried to disable the NetworkManager and now I'm using /etc/network/interfaces file to handle the connections but the problem still persists. I checked the issue with another R1 board and so I can exclude that the boa…

I have been experimenting with trying to get video acceleration working on the A83T. I can see from /proc/device-tree/soc/... that there is already a video-engine node within the current A83T device tree. It appears to be applied as one of the megous patches ARM-dts-sun8i-a83t-Add-cedrus-video-codec-support-to-A83T-untes.patch. Admittedly this is noted as being untested. In my initially created build via the build framework, Cedrus was not present at all among the list of loaded modules. I addressed this by creating an entry in the Cedrus compatibility table for the sun8i-a83t-video engine drv-sun8i-a83t-cedrus-add-variant.patch It now appears to l…

Hi Forum, "modprobe g_mass_storage file=/dev/sda1 removable=yes stall=0" doesn't work on 3.4.112 but works on 4.6.2. [ 363.575922] [sw_udc]: [sw_usb_udc]: binding gadget driver 'g_mass_storage' [ 363.581661] [sw_udc]: alloc request: ep(0xc0a75608, ep0, 64), req(0xee461c00) [ 363.590722] WRN:L2728(drivers/usb/sunxi_usb/udc/sw_udc.c):ERR: usb device is not active [ 363.597754] usb open backing file: /dev/sda1, 0xee42fa00 [ 363.604178] g_mass_storage gadget: Mass Storage Function, version: 2009/09/11 [ 363.608029] g_mass_storage gadget: Number of LUNs=1 [ 363.612001] lun0: LUN: removable file: /dev/sda1 [ 363.619227] ep_matches, wrn: endpoint already claimed, e…

Hi, after I made a software-update for my Cubitruck last week, my VGA monitor shows text only up to "starting kernel", then turns black. HDMI still works. I tried to reinstall the newest versions of both Ubuntu Bionic and Debian Stretch, both show this problem. The old VGA monitor is used only for maintenance work on my home server and off most of the time, it would be a shame if I had to buy a new HDMI monitor for this purpose. What is going on? Thanks Engelbert

Hi, I'm here again, the quarantine is almost over (sadly 'cause here in italy we are a bunch of a****le) and I finally get rid of my kodi 17 on retrorangepi 4.2 (old) that give me a lot of problems (with wifi connection lost, scraper that didn't update, and freeze, not for sure a problem with retrorangepi itself). so... I have something in my mind now that I'm back to home with my new FTTH internet connection. I want to setup an armbian image with or withot desktop for octoprint Armbian with 5.4 kernel (xfce debian) is really slow and temperature (with heatsink) don't go under 60°C on idle, with retrorangepi based on Debian Jessie, temps go…

Neo has one SPI port and I need two, so would like to add another spi using spi-gpio, but no success (I think). I am using Armbian 23.02.2 Bullseye, default kernel does not enable it, recompiled using linux-source-5.15.93-sunxi.tar.xz, enabled spi-gpio as module. Digged around forum, prepared below dts and armbian-add-overlay succeeded. But there is no message arrived when loading (dmesg shows nothing about spi) and no /dev/spi* created. Is it OK or there must be something? Please advise.... / { compatible = "allwinner,sun8i-h3"; fragment@0 { target-path = "/"; __overlay__ { …

Apt lists Armbian 23.8.3 as upgradable but refuses to upgrade. According to apt-cache the base files for 23.8.3 have not been updated for Orangepi3-lts. Is this the case or do I have a local problem with my install? --------------- # apt-cache policy base-files base-files: Installed: 23.8.1-bullseye Candidate: 23.8.1-bullseye Version table: *** 23.8.1-bullseye 500 500 http://apt.armbian.com bullseye/main arm64 Packages 100 /var/lib/dpkg/status 11.1+deb11u8 500 500 http://deb.debian.org/debian bullseye/main arm64 Packages

Hi, On upgrading to 5.35 Ubuntu Xenia default 3.4.113 I am unable to get DVI video working, I am presented with a pink screen. Monitor is a 1280x1024 dvi connected via HDMI-DVI converter cable. I am configuring this with h3disp -m 1280x1024 -d. I have rolled back to a 5.30 image and everything works as it should. Possibly a bug? How can I upgrade everything in the distro without breaking the video again? Thanks.

orange pi one xenial stretch armbian-config desktop On xenial playing mp4 and mp3 files on mpv media player does not stutter. Also not on vlc. On stretch mp4 and mp3 files stutter on mpv media player and vlc player. Is that a general error? Thank you.

Hello! I'm planning to try using kodi with my cubietruck. Should I use desktop ubuntu image, or can I customize the legacy debian one? One those things is returning memory reservations. If I get it right I should edit uboot config and add: sunxi_ve_mem_reserve=128M cma=128+16M Am I correct? Are there any other changes I should change in default config to run kodi smoothly? I'd go with debian if it's possible, but I can switch to ubuntu, if there's alot to change in 3.4 debian image.

Hello list, a big thank you to all the developers of Armbian. I am a newbie to arm boards, have limited experience with various linuxes and definitely not enough know-how to progam anything or to compile kernels or build images, and things like u-boots are warships for me. Without your great software images my cubietruck would probably have been an investment into electronic scrap! A short user-feedback: Why does a normal consumer want to use a cubieboard? To use my favorite .mp3-player attached via SPDIF to his stereo equipment, play music from a harddisk and control it via VNC-Client from a tablet (because I don't want to use an 80 W TV to contro…

Have anybody tried to setup Amazon Alexa on the OpiPC?

I am just getting started using the Orange Pi Zero and installed Xenial 4.10.1. Currently I am using Python and am able to address the GPIO pins (using this project: https://github.com/duxingkei33/orangepi_PC_gpio_pyH3) However, I need to communicate with a serial device (projector) using RS232 on 9600 BAUD. For this, the built-in UART should do the trick (with an additional voltage converter). Does anyone know how I can address this device from Python? Alternatively, is there a way to clock" an GPIO output to 9600 BAUD and manually send the data? Thanks, Ezpl

First of all, hello to everyone. I'm new to this forum so sorry if my question may look stupid, but i've strolled through the internet far and wide. I cannot find simple(for dummies version) step by step tutorial how to connect TFT waveshare knock-off with XPT2046 controller. Compatible with ADS7846 according to this thread: https://www.raspberrypi.org/forums/viewtopic.php?t=143581 I was able, using info from link below to run command line on legacy kernel. https://kaspars.net/blog/linux/spi-display-orange-pi-zero So i know about reverse SPI connection in orange pi zero. When i tried command: sudo modprobe fbtft_dev…

I've tried many permutations of overlays and user-overlays and I can get /dev/spidev0.0 or /dev/spidev0.1 to be present, but I can't seem to get both simultaneously. I need both to migrate a project from an older Fedora distribution relying on modprobe to the latest version of Armbian. Any suggestions will be greatly appreciated! I started with very recent Armbian 23.02 Bullseye XFCE downloaded from arbian.com/banana-pi-plus .. Armbian_23.02.2_Bananapi_bullseye_current_5.15.93_xfce_desktop.img and I added the following to the /boot/armbianEnv.txt file, as described in the Armbian page associated with the BananaPi M1+ .. f…

Hi. My board is Orangepi-PC Allwinner H3. I had wifi-dongle-usb problem.. so i used armbian.. I was download Image here http://www.armbian.com/orange-pi-one. I confirm wifi dongle is working! But Uart3 in not working.. I need uart3 for Bluetooth module.. I can't find ttyS3 in /dev/.. so i used source at https://github.com/igorpecovnik/lib I built two image.. -> Armbian_5.11_Orangepipc_Debian_jessie_4.6.0_desktop -> Armbian_5.11_Orangepipc_Debian_jessie_4.6.0 but both not working... I can see green led but i can't connect ssh... and cant' show console by monitor.. How can i do? Please help. Thanks.

Image Armbian_23.5.2_Nanopiduo2_bookworm_current_6.1.30.img uname -a Linux nanopiduo2 6.1.30-sunxi #1 SMP Wed May 24 16:32:53 UTC 2023 armv7l GNU/Linux It turns out the dtb has some missing pieces: ethernet@1c30000 { compatible = "allwinner,sun8i-h3-emac"; syscon = <0x1e>; reg = <0x1c30000 0x10000>; interrupts = <0x00 0x52 0x04>; interrupt-names = "macirq"; resets = <0x03 0x0c>; reset-names = "stmmaceth"; clocks …

dear all , thank you for the armbian os which is work more than great with me , I already bought DLINK DWM-157 and follow the installation steps , and as i see all going fine with me , but when i connect the modem i receive this output , [ 64.089219] usb 2-1: device descriptor read/64, error -71 [ 64.579198] usb 2-1: device descriptor read/64, error -71 [ 65.209195] usb 2-1: device descriptor read/64, error -71 [ 66.659297] scsi 0:0:0:0: rejecting I/O to offline device [ 69.969188] scsi 0:0:0:0: rejecting I/O to offline device [ 72.924173] usbserial_generic 2-1:1.0: device has no bulk endpoints [ 72.949655] usbserial_gen…

I'm a newbie and I cannot solve this issue... by typing tail -f / var/log/mail.log after some hours working the tail is not updating anymore.. to solve I have to: delete mail.log file create new mail.log file chmod a+w /var/log/mail* service syslog restart service postfix restart but again in few hours tail -f stop updating incoming events. Moreover, if I try with tail -f / var/log/syslog or tail -f / var/log/ufw.log the same result Any suggestion is highly appreciated..

Hi, I am migrating from legacy 3.x kernel to bionic mainline 4.14 at OrangePi Zero 2 plus. Previously there is a fex files to enable or disable some features such as onboard wifi, mali, hdmi and other. now I found no ways to disable it, overlays does not include this features. Is there any way to edit dtb files? or? Thanks

Hello everybody! I wanted to report that I was unable to boot with the "Bionic minimal 20.02.0-rc1" image "Bionic minimal 19.11.6 current" did not work either The red onboard is led flashing nothin else works. The Bionic download link on the top of the page is dead as well. With the same board, SD-card, power supply and USB cable I had no problem so far running the "Buster 20.02.0-rc1 current" image (beside some "armbian-configuration" flaws Did not try any further debugging so far any ideas? Andreas

Hello! I've downloaded the current images for BananaPi M1 offered in the site, as "Community Maintained" builds, but none of them is capable of producing video output from HDMI nor composite video. Both the Ubuntu jammy and Debian12 versions lose the video output as soon as the kernel starts to load, after the u-boot screen. I tried the desktop and server images, without any luck. With the older 5.x kernel, the ubuntu-jammy image that I've downloaded before loads fine. I know it's an old board, but it still gives me some amusement time tinkering with it and playing retro games. Anyone experiencing the same problem? Thanks!

Hi, I am using NanoPi M1+ device with Armbian Bionic kernel 4.14.y OS in it. On doing hciconfig ... I get no output. on doing hcitool dev ... the output is none too... What is the issue here? Why can't I see the bluetooth device of the device?

Hello, I'm having problems trying to boot armbian (Armbian_20.05.2_Orangepiplus2e_focal_current_5.4.43.img.xz) on this Orange Pi Plus 2e board. I'm using a fast original samsung 32gb sd card and I've tried multiple power adaptors. Here's the output from the serial console: U-Boot SPL 2020.04-armbian (Jun 03 2020 - 07:59:25 +0200) DRAM: 2048 MiB Trying to boot from MMC1 U-Boot 2020.04-armbian (Jun 03 2020 - 07:59:25 +0200) Allwinner Technology CPU: Allwinner H3 (SUN8I 1680) Model: Xunlong Orange Pi Plus 2E DRAM: 2 GiB MMC: Device 'mmc@1c11000': seq 1 is in use by 'mmc@1c10000' mmc@1c0f000: 0, mmc@1c10000: 2, mmc@1c11000: 1 Loadin…

My Opi3 has been running armbian for over 2 years (edge kernels & usually fully up-to-date). I have been using eMMC & I noticed an apparent slowdown about 6 months ago. As it performs cron-based tasks and is a stats collector, this performance was not noticable but doing a manual BIG dist-upgrade, it seems to take forever (20 minutes to do what should be under 5 minutes). If I run "mmc extcsd read /dev/mmcblk1", the results tell me that the eMMC is at least 90% used whatever that really means. Is this a sign of imminent failure ? hdparm shows read results of 17 MB/s which is actually slower than my alternative SD card boot device and nearly 1/10th …

Hi you all. I'm trying for a couple of day now to solve an annoying problem with the USB and some Bananapi M2 zeros. I have two cluster-hats with 4 Bananapi M2 zeros as nodes. The cluster hat presents itself as a USB gadget (USB ethernet interface) to the nodes allowing networking between the controller and the nodes. The nodes work fine with kernel 5.9.8, the modules identify the hat as a network interface and everything works as expected. My trouble is that I'm creating new images for the nodes (bananapi m2 zero) from here, the nodes boots, but it seems like the OTG port is not behaving as expected. Followed instructions from these posts:…

I'm running a fresh installation of Armbian 20.11 Focal with Linux 5.8.16-sunxi on NanoPi Neo board with Allwinner H3. root@nanopineo:~# uname -a Linux nanopineo 5.8.16-sunxi #20.08.14 SMP Tue Oct 20 22:15:32 CEST 2020 armv7l armv7l armv7l GNU/Linux The problem is that MAC address changes on every boot. This is very problematic for systems where an IP is assigned by DHCP based on MAC address table. I have two important questions: 1) Why MAC address is not generated based on processor unique ID? This seems to be the most sensible solution. 2) What part of code/startup script is assigning the random MAC address? Unfortunatelly I was not a…

I want to know something about the physical connection in the integrated CVBS video output. I use a jack of 3.5 mm of 4 pins. I see that the last 2 pins of the Orange pi Pc plus are the two audio outputs (Left and Rigth). other two are ground, and the other , the first one, I suppose that is the video output. but physically when I connect the jack to the video output and audio output of the orange, I can measure continuity between the supposed video output and ground. I want to know if something is wrong with that, and if I must be configure something internal in the orange for change this. in summary the audio video output have 5 co…

Hello, I noticed that Orange Pi 2 mini has disappeared from supported boards. Is it possible to use image for Orange Pi 2, although the "mini" does not have onboard wifi?

You need to connect the equipment via the I2C bus with a frequency of 1 kHz or 10 kHz to Orange pi 3 (OS Armbian Buster with Linux 5.3.9-sunxi64). Supported setting of these frequencies and how to change correctly? Recoded sun50i-h6-orangepi-3.dtb to dts: cd /boot/dtb/allwinner/ dtc -I dtb -O dts -o sun50i-h6-orangepi-3.dts ./sun50i-h6-orangepi-3.dtb nano ./sun50i-h6-orangepi-3.dts What should be done next to set the frequency of 1 kHz or 10 kHz to the i2c-0 bus? Thanks.

Hello, i update my OrangePiZero OS from Linux 5.10.43-sunxi to Linux 5.10.60-sunxi my screen fbtft spi lcd stop working , the screen is black. If there is a solution to this issue I would love to get help, thanks! here my configuration (work on 5.10.43). (Armbianmonitor link of 5.10.43 on top) (Armbianmonitor link of 5.10.60 Attached as a file ) fbtft.dts /dts-v1/; /plugin/; / { compatible = "allwinner,sun8i-h3"; fragment@0 { target = <&spi1>; __overlay__ { status = "okay"; }; }; fragment@1 { target = <&pio>; __overlay__ { spi1_cs_pins: spi1_cs_pins { pins = "PA13"…

Hi, First i'm french, so please excuse my english. I'm new to this forum but not new with Orange Pi (One) I'm already running 4 OPi with some basic hardware (like DS18B20, HT21D, relay module, etc...) for different projects like egg incubator, central heating, chicken door, etc... I'm working on a new project for a connected beehive and i'm trying to use loadcells with an HX711 but i can't get any data from my HX711. The code i'm using is this one: https://github.com/ggurov/hx711/blob/master/hx711.c The only thing i can obtain is "No data to consider" I have made a "quick and dirty" script to change #define CLOCK_PIN and #define DATA_PIN fro…

Board OrangePi+2E, Debian on SD was configured/tested, then nand-instaled to eMMC. Worked as Nextcloud headless server like a charm for more than year (thanks Armbian once again), but suddenly got stuck in boot with quite strange simptoms (read on attacched for exploration HDMI): couple of "sunxi_i2c_do_xfer incomplete xfer" errors /swap creation takes ~100 seconds then complete hang on Ethernet init The only thing I can suspect is some corruption in filesystem(s) on eMMC, but I see no chance to investigate this further as boot from it hangs completely. Fresh SD with mainline Debian boots and works with no issues, so the rest of the …

I am running a old buster image and ran apt-get upgrade, now it won't boot. Armbian 21.02.3 Buster with Linux 5.15.93-sunxi64 Get:8 http://netcup.armbian.com/apt buster/main arm64 linux-u-boot-orangepipc2-current arm64 25.2.3 [336 kB] ... Unpacking armbian-firmware (25.2.3) over (23.08.0-trunk--1-SA1251-B226d) ... dpkg: error processing archive /tmp/apt-dpkg-install-RjldFI/034-armbian-firmware_25.2.3_all.deb (--unpack): trying to overwrite '/lib/firmware/ath10k/QCA9377/hw1.0/board-2.bin', which is also in package firmware-atheros 20190114+really20220913-0+deb10u2 dpkg-deb: error: paste subprocess was killed by signal (Broken pipe) ... Preparing…

Hello I have desktop version and I can`t on the AV sound card. The sound works on HDMI. Could You advice how to do it? I`m try to this solution but sound card is still not available. alsamixer is diffren

Hi, i get this error when i run the script by crontab. When I run manually, the script runs perfectly. crontab is executed by the command: "crontab -u root -e" To make sure the tasks are performed by the root user, but I still have the following error: hwclock: Cannot access the Hardware Clock via any known method. hwclock: Use the --debug option to see the details of our search for an access method. Erro na sincronização Wed 02 Oct 2019 08:04:11 AM -03 This is the script: #!/bin/bash pingtest=$(ping -c 1 a.ntp.br > /dev/null 2>&1; echo $?); if [[ $pingtest -eq 0 ]]; then systohc=$(/sbin/hwclock -f /dev/rtc1 -w; echo $?); if [[ $systohc -eq 0 ]];…

Dear community. I like to get the NanoPi Neo air work as HID Gadget using libcomposite. I am using the dev kernel (4.10) and libcomposite is loaded. Following this tutorial http://isticktoit.net/?p=1383 the usb gadget init script is running without errors on startup. But there is no entry in /sys/class/udc/ and i get no /dev/hidg0 device Did i missed something? is there a special overlay directive for the usb controller? or is something missing in the kernel? is it better to use the g_hid module?

We have a project based on FriendlArm's NanoPi Neo Air board. Currently the devices are running Armbian 18.04 LTS loaded from emmc. We are looking for a way to update the devices "offline" / with no user interaction. We can upload data to the devices via FTP and also can execute shell scripts. We can not easily access the on-board micro SD slot but have an external SD-Slot / USB-A Port with lots of free memory on each device. Any hints or explanations are very welcome!

My Development board is Orange Pi zero plus2 H5. My bluetooth already in work,but I try to play a .wav for test.this circumstance occurs. This is my test wav file: 1045.wav I use : aplay 1045.wav Playing WAVE '1045.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo then I record the sounds as mypaly.mp3. I guess this problem is due to uart Baud rate 115200 is not high enough . How can i fix this? 1045.wav mypaly.mp3

Hello, i had a problem withe an Orange Pi Lite and the Cheap RPI Display. The Display Backlight is on. I had used this tut: https://forum.armbian.com/topic/6737-orange-pi-zero-35-tft-touchscreen/ https://forum.armbian.com/topic/4837-guide-how-to-use-touchscreen-lcd-on-h3-devices/ --- 2) Create a makefile (Take note that it is TABS instead of spaces before the $(MAKE)) nano Makefile Insert the below in without the ----- -------------------------------- obj-m := ads7846.o KDIR := /lib/modules/$(shell uname -r)/build PWD := $(shell pwd) all: $(MAKE) -C $(KDIR) M=$(PWD) modules clean: $(MAKE) -C $(KDIR) M=$(P…

Hi I am using an OrangePi Zero 2+ with AllWinner H3 and i need both uart. I enable them with armbian-config and on pins Uart2 on pins 8 and 10 work fine bat uart1 on pins 11, 13 don't. The pin on this board is not the same as orangepi zero? I mast make some setup to make uart1 to work? auto@orangepizeroplus2-h3:~$ uname -a Linux orangepizeroplus2-h3 5.9.14-sunxi #20.11.3 SMP Fri Dec 11 20:31:12 CET 2020 armv7l armv7l armv7l GNU/Linux auto@orangepizeroplus2-h3:~$ cat /boot/armbianEnv.txt verbosity=1 bootlogo=false console=both disp_mode=1920x1080p60 overlay_prefix=sun8i-h3 overlays=i2c1 uart1 uart2 uart3 usbhost2 usbhost3 …

Hello, using newest Legacy Image Armbian_5.04_Cubietruck_Debian_jessie_3.4.110 there is still a wifi problem while booting. Correct? For more than one minute the boot process hangs showing following error message: "A Start Job is running for LSB: Raise network interfaces" After one minute the boot process continues. The wlan0 connection gets somehow established. But it is slowly und not really stable. root@cubietruck:~$ cat /etc/network/interfaces auto eth0 iface eth0 inet dhcp auto wlan0 iface wlan0 inet dhcp wpa-ssid My-SSID wpa-psk My-Password auto lo iface lo inet loopback root@cubietruck:~$ lsmod Module Size Us…

I tried to boot my brand new OrangePi PC Plus without SD card, and it boots to some Chinese OS. However, if I boot it with Armbian, it boots to Armbian. So my question is, is there some kind of "BIOS" or similar firmware preloaded on these devices? And if yes - is it possible to remove it with something else?

We are trying to install wifi driver for Xradio Xr-819 and also for D-Link Wifi Adapter in Mainline Image of Orange Pi PC. We have tried for xradio by https://www.cnx-software.com/2016/11/10/allwinner-h2-linux-android-sdk-and-allwinner-xr819-wifi-driver-released/ and https://github.com/fifteenhex/xradio. Also, we have tried by installing u-boot https://notsyncing.net/?p=blog&amp;b=2016.orangepi-pc-custom-kernel. We have tried for D-Link by https://github.com/xk/rtl8812AU_rtl8821AU and http://www.philipzucker.com/getting-goddamn-wifi-on-the-goddamn-orange-pi-pc/. Also, we tried to made modifications in file /etc/network/interfaces but that file shows in Read…

Good day friends, For some time now I've been trying a DAC (dac-pcm5102mk-i2s) with the Orangepi Pc Plus OS "Debian Stretch with Armbian Linux 4.19.62-sunxi" to put into operation. Unfortunately without success so far. On another Orangepi Pc Plus with Ubuntu Xenial with Armbian Linux 3.4.113-sun8i I activated the DAC after the tutorial I2S on Orange Pi H3 Da Alchemist February 29, 2016. It works fine there. Debin strech does not have a script.bin that I could convert in order to be able to make the settings. I would be happy if someone could help me. Best regards Hans-Jürgen Grigoleit

When tweaking Armbian’s Build System I understand that it also builds u-boot and updates it when new sources are available. I understand, that the last one was updated on : [🌿] {u-boot:1} Cleaning u-boot tree [ u-boot-worktree/u-boot/v2024.01 for '' ] [🔨] [Mon Aug 25 11:11:25 PM CEST 2025] Running: git --no-pager clean -xfdq [🌱] Calling Python patching script for U-Boot: [ https://github.com/u-boot/u-boot - tag:v2024.01 ] [🌱] Using U-Boot patch dir: [ u-boot-sunxi ] Where is the latest build could be downloaded from and what is its flash procedure and recovery (if necessary) ?

Hi, I would like to ask, if Armbian is compatible with newer Cubieboard5 / Cubietruck Plus? I saw that Cubieboard4 is supported and older Cubietruck too, but I can't find if the Cubieboard5 is supported. Thanks for info. T.

Hello. I have an Orange Pi Zero board with Armbian on it. I want to use its serial pins for flashing arduinos. Right now I only have 1x3 serial pins and 1x13 media (?) pins soldered, the 2x13 GPIO doesn't have any pins and I don't have any spare ones to solder (alright, I might have some, but I'm too lazy for that). That means I only have access to UART0 pins which are currently reserved for Linux console. With RPi Zero and Raspbian the same problem was solved by simply removing "console=ttyAMA0,115200" from kernel options. However, Armbian seems to generate kernel options entirely from armbianEnv.txt, making it impossible to manually remove ser…

I had successfully installed openCV for armbian using instructions from this page: http://www.pyimagesearch.com/2015/10/26/how-to-install-opencv-3-on-raspbian-jessie/ I also highly recommend Adrians's openCV tutorials. happy openCV-ing Mladen