This is how it looks:

root@Omega-276D:/sys/devices/w1_bus_master1/28-0415a810c3ff# cat w1_slave
7b 01 4b 46 7f ff 0c 10 af : crc=af YES
7b 01 4b 46 7f ff 0c 10 af t=23687

Now it's working, using +5V and GND and PIN 26. Before I was using + 3.3V. My sensor is a 18B20 with 10K resistor.

@Nathan-Bertram Hi, thanks for the tip. Created the file, restarted the Onion, folder /etc/devices/w1_master_driver now exists, but nothing with DEVICE to be found there.
Any ideas ?

Hi,
The electronics (diagram) in my case is OK. The issue is that I do not have /etc/modules.d/55 p.....

I have listed in a previous post all modules I have with gpio.

Any suggestions ?
Thx,

My sensor is a: DS18B20

Hello,
What is the quickest way to read 1 wire temperature sensor ?
There is another post "Driver for 1-Wire sensor bus" but my folders, do not match any of the hints there, that's why I'm opening a new topic.
Thanks!

Hi for example I've this:

root@Omega-276D:/etc/modules.d# ls gpio

30-gpio-button-hotplug 58-i2c-gpio-custom spi-gpio
30-gpio-irq 59-i2c-gpio w1-master-gpio
50-ledtrig-gpio 60-leds-gpio

Which one should I use ?
Thanks,
Miguel

@Lazar-Demin said:

https://github.com/OnionIoT/wiki

Hello,
Is there a way how to check this ? I mean using a temperature sensor.
I've been reading this post, and none of the folders / file exists on my Onion.
Just updated to the latest version.
Thanks,
Miguel