Hi,

I installed a armbian on Orange pi PC.

The initial screen shoot is:

 

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 ___                               ____  _   ____   ____
 / _ \ _ __ __ _ _ __   __ _  ___  |  _ \(_) |  _ \ / ___|
| | | | '__/ _` | '_ \ / _` |/ _ \ | |_) | | | |_) | |    
| |_| | | | (_| | | | | (_| |  __/ |  __/| | |  __/| |___
 \___/|_|  \__,_|_| |_|\__, |\___| |_|   |_| |_|    \____|
                       |___/                              

Welcome to ARMBIAN 5.38 stable Debian GNU/Linux 9 (stretch) 4.14.18-sunxi   
System load:   0.72 0.46 0.18      Up time:       2 min        
Memory usage:  5 % of 1000MB     IP:            10.0.0.12
CPU temp:      41°C               
Usage of /:    16% of 7.1G       

 

After I upgradeed the system:

 

 

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sudo apt-get update

sudo apt-get upgrade

 

I want to use DS18B20 sensor; so I loadeed this driver:

 

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sudo modprobe w1-sunxi

 

but I see this message error:

 

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modprobe: FATAL: Module w1-sunxi not found in directory /lib/modules/4.14.18-sunxi

 

Why ?

How to I can to resolve ?

On 5/27/2018 at 5:43 PM, c.man said:

How to I can to resolve ? 

 

A update: I tried to install an other kernel version for my Orange pi pc:

 

Armbian Xenial
desktop legacy kernel 3.4.y

 

and sudo modprobe w1-sunxi work perfectly.
So  I think that is a bug of 4.14.18-sunxi   kernel.

 

Anyone can tell me if is it is a really a bug ?

 

1 hour ago, c.man said:

Anyone can tell me if is it is a really a bug ?

Everything is correct. There is no w1-sunxi module on mainline, w1-gpio is used with Device Tree overlays instead of it.

ok. So how I can to read temperature from ds18b20 sensor (1-wire protocol) ?

Is it possible ?

What I must to enable ?

ok.

I have enabled "system -> hardware -> w1-gpio".

But, If I go in:

 

cd /sys/bus/w1/devices/

 

I see:

 

 

00-4b3000000000  w1_master_add		    w1_master_remove
00-8b3000000000  w1_master_attempts	    w1_master_search
driver		 w1_master_max_slave_count  w1_master_slave_count
power		 w1_master_name		    w1_master_slaves
subsystem	 w1_master_pointer	    w1_master_timeout
uevent		 w1_master_pullup	    w1_master_timeout_us
root@orangepione:/sys/devices/w1_bus_master1#

 

I don't have the 28-000...... for my ds18b20 sensor. Why ?

and

root@orangepione:/sys/devices/w1_bus_master1# modprobe w1_sunximodprobe: FATAL: Module w1_sunxi not found in directory /lib/modules/4.14.18-sunxi

I have the same error....

38 minutes ago, c.man said:

root@orangepione:/sys/devices/w1_bus_master1# modprobe w1_sunximodprobe: FATAL: Module w1_sunxi not found in directory /lib/modules/4.14.18-sunxi

 

 

On 5/28/2018 at 10:57 PM, zador.blood.stained said:

There is no w1-sunxi module on mainline, w1-gpio is used with Device Tree overlays instead of it

 

 

video from above, reboot fine:

 

https://github.com/armbian/sunxi-DT-overlays/blob/3db678af0d330e68317e3b7c8ed0738c70d2c772/sun8i-h3/sun8i-h3-w1-gpio.dts#L24 sticking it to the right gpio pin is obviously also needed. 

what is the correct pin in GPIO ?

 

gpios = <&pio 3 14 0>; /* PD14 */

I attacched so in GPIO:

 

    GPIO P02......... +5V
    GPIO P06......... GND
    GPIO P37......... data

 

Is it correct ?

PD14 GPIO is on pin 12 ...

Make sure you have a PullUp on the data line ...

thank you very match !!

now work !!

So is not necessary to load w1-sunxi module and pin number in GPIO is it changed.

Why don't write it  in updating version ? Is it crazing...

People here write documentation for a reason. E.g. going here:

https://docs.armbian.com/User-Guide_Allwinner_overlays/

you'll see:

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Quick start

1. Check the README.<soc-id>-overlays in /boot/dtb/overlay/ (32-bit SoCs) or /boot/dtb/allwinner/overlay/ (64-bit SoCs) for a list of provided overlays, their required and optional parameters
2. Add names of overlays you want to activate to overlays= line in /boot/armbianEnv.txt, separated with spaces
3. Add required parameters with their values to /boot/armbianEnv.txt, one per line
4. Add optional parameters with their values to /boot/armbianEnv.txt if you want to change the default value, one per line
5. If you didn’t find the required overlay or want to change one of provided overlays, refer to “Using custom overlays” section
6. Reboot

 

and then: nano /boot/dtb/overlay/README.sun8i-h3-overlays

### w1-gpio

Activates 1-Wire GPIO master
Requires an external pull-up resistor on the data pin
or enabling the internal pull-up

Parameters:

param_w1_pin (pin)
        Data pin for 1-Wire master
        Optional
        Default: PD14

param_w1_pin_int_pullup (bool)
        Enable internal pull-up for the data pin
        Optional
        Default: 0
        Set to 1 to enable the pull-up
        This option should not be used with multiple devices, parasite power se$
                or long wires - please use external pull-up resistor instead

and in the end:

http://lmgtfy.com/?q=PD14+orangepi+pc where the second hit under pictures shows you exactly which pin PD14 is. It is there, where it belongs in the Documentation and even on your Armbian on the board. Okay, you probably need the documentation to know where you find it on your board, but that's what documentations are for...