robertoj

https://www.amazon.com/Expansion-Connector-Interface-Development-Computer/dp/B0CHMTT4XP/ http://www.orangepi.org/html/hardWare/computerAndMicrocontrollers/details/2W-expansion-board.html http://www.orangepi.org/orangepiwiki/index.php/Orange_Pi_Zero_2W#24Pin_expansion_board_interface_pin_description In the tiny 24 pin expansion connector Pin 22=left audio Pin 23=right audio Pin 24=ground In armbian, orangepizero 3 audio support is missing, as of 2024-Feb-15... so you should try it and see if it works or not in opiz 2w (probably not). Then, use the OFFICIAL OrangePi Zero 3 Debian with Linux 6.1. The audio should work. Then tell us in the OrangePi Zero 2W thread. Raspberry Pi has a whole different ARM CPU... don't expect that hardware is going to work exact the same way.

Audio on the opiz2w is through the "expansion interface". Have you seen other boards using the PWM for audio? There's a thread about the opiz2w... use that

"usual user" has posted instructions to incorporate your dtbo inside the dtb... but I personally like having a separate dtbo that is applied by uboot. https://forum.armbian.com/topic/33800-orange-pi-zero-3-gpio/?do=findComment&comment=181688 dtb and dtbos are the correct way to assign pins and tell the kernel where everything is. I don't think there's anything wrong with the boot process, if it only needs a dtbo to start working correctly. Everything depends on having good dtb and dtbos.

Thank you! I will try it later... but I can see how the dtso is structured

With armbian's DTB. cat /sys/kernel/debug/gpio root@orangepizero3:~# cat /sys/kernel/debug/gpio gpiochip0: GPIOs 0-287, parent: platform/300b000.pinctrl, 300b000.pinctrl: gpio-76 ( |red:status ) out lo gpio-77 ( |green:power ) out hi gpio-80 ( |regulator-usb1-vbus ) out hi gpio-166 ( |cd ) in lo ACTIVE LOW gpio-210 ( |reset ) out hi ACTIVE LOW gpiochip1: GPIOs 352-383, parent: platform/7022000.pinctrl, 7022000.pinctrl: root@orangepizero3:~# With the DTB you created yesterday root@orangepizero3:~# cat /sys/kernel/debug/gpio gpiochip0: GPIOs 0-287, parent: platform/300b000.pinctrl, 300b000.pinctrl: gpio-69 (con1-13 ) gpio-70 (con1-11 ) gpio-71 (con1-22 ) gpio-72 (con1-15 ) gpio-73 (con1-07 ) gpio-74 (con1-26 ) gpio-75 (con1-12 ) gpio-76 ( |red:status ) out lo gpio-77 ( |green:power ) out hi gpio-78 (con1-18 ) gpio-79 (con1-16 ) gpio-80 ( |regulator-usb1-vbus ) out hi gpio-166 ( |cd ) in lo ACTIVE LOW gpio-210 ( |reset ) out hi ACTIVE LOW gpio-226 (con1-08 ) gpio-227 (con1-10 ) gpio-228 (con1-05 ) gpio-229 (con1-03 ) gpio-230 (con1-23 ) gpio-231 (con1-19 ) gpio-232 (con1-21 ) gpio-233 (con1-24 ) gpiochip1: GPIOs 352-383, parent: platform/7022000.pinctrl, 7022000.pinctrl: root@orangepizero3:~# And, the result of gpioinfo is: And the contents of pinmux-pins

THANK YOU. I will try this tonight

Thank you... I already got the help that I personally needed to get my work project rolling again I want to learn how to make a DTS, compile it into a DTBO and make a Pull Request I agree that GPIOD is less capable than MRAA. I may have the time to learn how to make it work.

roberto@orangepizero3:~$ sudo cat /sys/kernel/debug/gpio gpiochip0: GPIOs 0-287, parent: platform/300b000.pinctrl, 300b000.pinctrl: gpio-76 ( |red:status ) out hi gpio-77 ( |green:power ) out hi gpio-80 ( |regulator-usb1-vbus ) out hi gpio-166 ( |cd ) in lo ACTIVE LOW gpio-210 ( |reset ) out hi ACTIVE LOW gpiochip1: GPIOs 352-383, parent: platform/7022000.pinctrl, 7022000.pinctrl: Attaching DTB from /boot/dtb/allwinner/sun50i-h618-orangepi-zero3.dtb in rolling armbian release. I dont know whether there are any armbian patches toward the GPIO, but this is the folder with armbian patches for orangepi zero 3 https://github.com/armbian/build/tree/main/patch/kernel/archive/sunxi-6.7/patches.armbian sun50i-h618-orangepi-zero3.dtb

What should I do in my orangepi zero 3, so that the result of "gpioinfo " is "line 229: "PH5...", and just show the usable lines (as shown in https://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.git/about/ ) What I get now is: "line 0: unnamed... (288 lines)" (as shown in https://forum.armbian.com/topic/29202-orange-pi-zero-3/?do=findComment&comment=181015) Is this the way to do it? https://stackoverflow.com/questions/60100907/gpiod-use-labels-in-devicetree

gpio-sysfs is deprecated and gpiod is one of the replacements https://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.git/about/ What would be needed to have my orangepi zero 3 show this? VVV This is NOT what I get. This is what I want to get VVV $ gpioinfo gpiochip0 - 27 lines: line 229: "PH5/I2C3_SDA" input line 228: "PH4/I2C3_SCK" input line 73 "PC9" input line 226 "PH2/UART5_TX" output line 227 "PH3/UART5_RX" input line 70 "PC6" input line 75 "PC11" input line 69 "PC5" input line 72 "PC8" input line 79 "PC15" input line 78 "PC14" input line 231 "PH7,SPI1_MOSI" input line 232 "PH8,SPI1_MISO" input line 71 "PC7" input line 230 "PH6,SPI1_CLK" input line 233 "PH9,SPI1_CS" input line 74 "PC10" input line 234 "PH10/UART6_TX" input line 235 "PH11/UART6_RX" input line 236 "PH12/I2C4_SDA" input line 237 "PH13/I2C4_SCK" input line 238 "PH14/SPI2_MOSI" input line 239 "PH15/SPI2_MISO" input line 240 "PH16/SPI2_CLK" input line 241 "PH17/SPI2_CS" input line 242 "PH18/UART7_TX" input line 243 "PH19/UART7_RX" input

Can you check WiFi, Bluetooth and HDMI?

Ok. I got one output pin to work. 😀 This is how to do it in OrangePi Zero 3, pin 8 PH2: In Bash as root: # addgroup --system gpio # chown root:gpio /dev/gpiochip0 # chmod 660 /dev/gpiochip0 # nano /etc/udev/rules.d/61-gpio-tools.rules {add line SUBSYSTEM=="gpio",KERNEL=="gpiochip*", GROUP="gpio", MODE="0660"} # usermod -a -G gpio myusername # apt install python3-dev # reboot In a new folder for your Python script, as normal user: $ python3 -m venv .venv $ source .venv/bin/activate $ pip install gpiod Create script (example in https://pypi.org/project/gpiod/ with one fix): $ nano blink_pin.py import time import gpiod #needed in example from gpiod.line import Direction, Value #Calculating PH2 "line" number #H=8 #2=2 #line=(8-1)x32+2=226 #also shown in https://github.com/rm-hull/OPi.GPIO/issues/79 LINE = 226 with gpiod.request_lines( "/dev/gpiochip0", consumer="blink-example", config={ LINE: gpiod.LineSettings( direction=Direction.OUTPUT, output_value=Value.ACTIVE ) }, ) as request: while True: request.set_value(LINE, Value.ACTIVE) time.sleep(1) request.set_value(LINE, Value.INACTIVE) time.sleep(1) Run script: $ python3 blink_pin.py When done working with your project: $ deactivate Pin 8 PH2 turns ON and OFF 😄 I haven't tested the other pins yet

That gpiod sounds very promising, and easy to use with https://pypi.org/project/gpiod/ I need to wait until I get back home to work on my opiz3

References for trying tomorrow: https://wiki.radxa.com/Mraa https://wiki.radxa.com/RockpiE/dev/libmraa https://www.okdo.com/project/how-to-install-mraa-library-on-the-rock-4c/ https://www.ics.com/blog/getting-started-mraa-raspberry-pi Has anyone used mraa in rockpi+armbian? Old discussion about alternatives to mraa https://forum.armbian.com/topic/12285-providing-mraa-as-common-gpio-library-as-a-replacement-for-wiringpi/

Thank you Gunjan... I hope i have the skill (or time to develop the skill) to add support for opiz3 In the older thread, I was told that /sys/class/gpio won't work anymore... well, it is very true: https://forum.armbian.com/topic/29202-orange-pi-zero-3/?do=findComment&comment=180975 https://www.thegoodpenguin.co.uk/blog/stop-using-sys-class-gpio-its-deprecated/ So, any methods and libraries that depend on sys/class/gpio, like opi.gpio, JUST WONT WORK

Thank you... I was just making a new thread about this topic... hopefully someone will give me a solution soon

Yesterday, I tried to use the digital IO in my opi zero3, with the Python GPIO package from https://opi-gpio.readthedocs.io/en/latest/ by Richard Hull It depends on having sysfs files in /sys/class/gpio/ My original opi zero has these files and it works, but my opi zero3 doesn’t have these files I learned that /sys/class/gpio is created if the linux kernel is configured with a specific option ON, as suggested in the documentation: https://github.com/rm-hull/OPi.GPIO https://linux-sunxi.org/GPIO Also, a developer has made a change on the opi.GPIO project to support opi zero3 https://github.com/rm-hull/OPi.GPIO/issues/79 I will have time to try this tomorrow... but I want to ask: is anyone using GPIO in its most basic way? As reference: I saw this older thread about zero3's GPIO... https://forum.armbian.com/topic/31493-how-to-enable-i2c3-on-orange-pi-zero-3/ It is using leebobby's "armbian" image, with raspi-config, and wiringpi Using my original opi-zero, I never needed to use armbian-config to enable basic gpio and the python opi.gpio just worked as documented Note: the opi.gpio only claims to support basic gpio, not i2c. Update: these are interesting potential solutions and discussions (but they are all from before there was armbian for opiz3) https://www.reddit.com/r/OrangePI/comments/16vfa4g/orange_pi_zero_3_gpio_python_library/ https://github.com/eutim/OPI.GPIO https://www.reddit.com/r/OrangePI/comments/16ioyri/gpio_python_library_for_orange_pi_zero_3/ https://www.reddit.com/r/OrangePI/comments/18iveo3/how_to_control_gpio_pins_in_android_orange_pi/

I tried the latest rolling release from Feb 4, and I have good wifi performance and 0.0 cpu load when idle I tried to use GPIO Python from https://opi-gpio.readthedocs.io/en/latest/ however, it depends on having files in /sys/class/gpio/… which my original opi zero has, but my opi zero3 doesn’t have. Does GPIO depend on a dtbo or a ko? Or is it an option in kernel config, or within armbian-config?

Thank you!!

Hello. Thank you for making this image. I recently refocused in my orange pi boards and want to try this 👍🏽 i hope I don’t get much trouble with basic GPIO usage