Erreur de lecture de sonde ds18b20

WarC0zes · Avril 30, 2024, 12:45

Bonjour,
on dirais un soucis qui a pas été fixer.

Essayer ce component externe qui devrais fixer le problème:

github.com/esphome/issues

ESP-IDF Dallas scratch pad invalid checksum

opened 12:58PM - 20 Nov 21 UTC

closed 02:17AM - 04 Apr 22 UTC

cmezh

integration: dallas stale

### The problem After switching to ESP-IDF framework Dallas component has sta…rted throwing a lot of warnings about scratch pad invalid checksum. There are no such warnings if Arduino framework is used. With Dallas hub update interval of 1s it throws warnings every 5-10 seconds. ### Which version of ESPHome has the issue? 2021.11.1 ### What type of installation are you using? Home Assistant Add-on ### Which version of Home Assistant has the issue? 2021.11.4 ### What platform are you using? ESP32-IDF ### Board ESP32-WROOM-32U custom hardware setup ### Component causing the issue Dallas ### Example YAML snippet ```yaml esp32: board: esp32dev framework: type: esp-idf version: latest dallas: - pin: 26 id: "dallas_fast" update_interval: 1s sensor: - platform: dallas dallas_id: "dallas_fast" address: 0x4400000D6A383928 name: "Boiler temperature" id: "boiler_temperature" internal: true ``` ### Anything in the logs that might be useful for us? ```txt INFO Reading configuration /config/esphome/boiler.yaml... INFO Starting log output from 192.168.1.3 using esphome API INFO Successfully connected to 192.168.1.3 [15:50:59][I][app:099]: ESPHome version 2021.11.1 compiled on Nov 20 2021, 15:22:40 [15:51:06][W][dallas.sensor:129]: 'Boiler temperature' - Scratch pad checksum invalid! [15:51:15][W][dallas.sensor:129]: 'Boiler temperature' - Scratch pad checksum invalid! [15:51:23][W][dallas.sensor:129]: 'Boiler temperature' - Scratch pad checksum invalid! [15:51:28][W][dallas.sensor:129]: 'Boiler temperature' - Scratch pad checksum invalid! [15:51:38][W][dallas.sensor:129]: 'Boiler temperature' - Scratch pad checksum invalid! [15:51:47][W][dallas.sensor:129]: 'Boiler temperature' - Scratch pad checksum invalid! [15:51:49][W][dallas.sensor:129]: 'Boiler temperature' - Scratch pad checksum invalid! [15:52:00][W][dallas.sensor:129]: 'Boiler temperature' - Scratch pad checksum invalid! ...and much more similar lines... ``` ### Additional information DS18B20 sensor is powered from 3v3 line and its data line is pulled up to 3v3 externally with 2k2 resistor.