esp8266-homekit-temphumiditysensor

This is a native HomeKit temperature and humidity sensor with D1 mini ESP8266 and DHT11/22 sensor in celsius.

Hardware

The following hardware is required:

- D1 mini (ESP8266)
- Resistor 10kOhm
- Temperature and humidty sensor (DHT11 or DHT22)

Connection: D1 mini -> DHT11/DHT22

3V3 -> VCC
3V3 -> 10kOhm -> D
D2 -> D
GND -> GND

Development

This sketch is for following development environment

Arduino

Following libraries are required

https://github.com/datjan/Arduino-HomeKit-ESP8266 (fork from Mixiaoxiao/Arduino-HomeKit-ESP8266:master)
https://www.arduino.cc/reference/en/libraries/adafruit-unified-sensor/
https://www.arduinolibraries.info/libraries/dht-sensor-library

Setup

Setup esp8266-homekit-temphumiditysensor.ino:

#define DHTTYPE DHT11   // DHT11 or DHT22

Setup my_accessory.c:

.password = "555-11-123". // Homekit Code

Setup wifi_info.h

const char *ssid = "xxx"; // SETUP Wlan ssid
const char *password = "xxx"; // SETUP Wlan password

Upload to device

Following files needs to be uploaded to the ESP8266 (D1 mini)

esp8266-homekit-temphumiditysensor.ino
my_accessory.c
wifi_info.h

Add device to Homekit

The device can be added to homekit like every other homekit device.