All relays on after restart rpi

[byniow]

After restarting rpi i have strange behavior. My config:

mqtt:
  host: 10.1.0.100
  topic_prefix: rpi_io
  user: mqtt
  password: mqtt
  ha_discovery:
    enabled: yes

# GPIO
gpio_modules:
    - name: rpi
    module: raspberrypi
digital_outputs:
  - name: P1-1
    module: rpi
    pin: 5
    inverted: True

  - name: P1-2
    module: rpi
    pin: 6
    inverted: True

  - name: P1-3
    module: rpi
    pin: 13
    inverted: True

And after restart i get relays on. But no in the same time, but relays are on one by one after 1 second delay. Why? i use HA to control with mosquitto, and state after rpi restart is not copied from HA, but HA show all as off.

Second - correct config for DS18b20? I try a lot options - and no success.

[ondras12345]

Try adding initial: high (or initial: low if you want them to be on) and publish_inital: true to your relays.

This is my config for DS18B20:

sensor_modules:
  - name: dallas_a
    module: ds18b
    type: DS18B20
    address: 3c01e076877d

sensor_inputs:
  - name: temperature_a
    module: dallas_a
    interval: 300
    digits: 2
    ha_discovery:
      name: Temperature A
      device_class: temperature
      state_class: measurement
      unit_of_measurement: "°C"

You need to find the correct address of your device by searching in /sys/bus/w1/devices.

Bonus: changing resolution of DS18B20

Writing a value between 9 and 12 to the sysfs w1_slave file will change the precision of the sensor for the next readings. This value is in (volatile) SRAM, so it is reset when the sensor gets power-cycled.

...

To store the current precision configuration into EEPROM, the value 0 has to be written to the sysfs w1_slave file. Since the EEPROM has a limited amount of writes (>50k), this command should be used wisely.

https://www.kernel.org/doc/Documentation/w1/slaves/w1_therm

echo 12 | sudo tee /sys/bus/w1/devices/28-3c01e076877d/w1_slave
echo 0 | sudo tee /sys/bus/w1/devices/28-3c01e076877d/w1_slave

[byniow]

Is there any option to restore the current switch setting in HA after RPI restart? There was no information in the documentation to enable 1-wire system function in raspi-config, so I was wandering. Thank you for the guidance

[ondras12345]

I don't think so, you'll need to create a custom automation. You can store the state in an input_boolean (which survives restart) and restore it automatically after your switch entities become available. I'm sure there will be many examples of how to do that on Home Assistant forums https://community.home-assistant.io/

[byniow]

Now work. Documentation should be a little more detailed, with examples for all options. But now work with Your help. Thank You again.