Add libraries on ESPHome

ESPHome
1

Hi everybody …

I try to integrate the library Adafruit AHTX0 fot my temperature and humidy sensor aht2x.
When I write the yaml file for my ESP8266 Wemos D1 R2 board, I can’t use this library. So I tried with aht10 library but when I install it on the ESP, the board cannot read the sensor because it’s not the good library. So I searched on internet and I found that I need to create a custom sensor.

I don’t know how to create this for my sensor.
If anyone can help me please.

Thank you.

PS : I have HA os on a rasperry pi3 and ESPHome as an add-on.

#ifndef AHT2X_SENSOR_H
#define AHT2X_SENSOR_H

#include <Wire.h>
//#include <Adafruit_Sensor.h>
#include "Adafruit_AHTX0.h"
#include <esphome.h>

class Aht2xCustomSensor : public esphome::Component, public esphome::PollingComponent {

 public:
  Aht2xCustomSensor() : PollingComponent(60000) {} // Lire toutes les 60 secondes

  void setup() override {
    Serial.begin(9600);
    while (!Serial)
      delay(10); // attendre la connexion série

    Serial.println("Démarrage du capteur AHT...");
    if (!aht.begin()) {
      Serial.println("Erreur lors de l'initialisation du capteur AHT!");
      while (1);
    }
    Serial.println("Capteur AHT20/AHT21 prêt !");
  }

  void update() override {
    // Lire les données d'humidité et de température
  sensors_event_t humidity, temperature;
  aht.getEvent(&humidity, &temperature);
  delay(2000);
  }
};

#endif  // AHT2X_SENSOR_H

This is what I tried.

esphome:
  name: capteur-ch
  friendly_name: °C_%
  includes:
    - aht2x-sensor.h


esp8266:
  board: d1

# Enable logging
logger:

# Enable Home Assistant API
api:
  encryption:
    key: "......

ota:
  password: "....."

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Capteur-Ch Fallback Hotspot"
    password: "....."

captive_portal:

# Configuration du capteur AHT2x
i2c:
  sda: D2
  scl: D1

sensor:
  - platform: custom
    lambda: |-
      auto myAht2xCustomSensor = new Aht2xCustomSensor();
      App.register_component(myAht2xCustomSensor);
      return {myAht2xCustomSensor};



    sensors:
      name: "Custom_AHT2X"
2

Perhaps start by telling us what went wrong with the aht10 component.

3

I don’t have the aht10 component but the aht2x sensor. So on ESPHome, the library for aht10 doesn’t work with the aht2x. Finally, when I upload the script on the ESP8266 Wemos D1 R2, an error message tell me that the aht10 component couldn’t be found.

4

According to ESPHome aht2x is suppported as an existing platform

This is i2c communication protocol so your logs should show that the device has been found on the initial scan. I can’t see that in your logs at all.