A zigbee2mqtt-like mqtt-tls client for NodeMcu and Si7021
Since I am running zigbee2mqtt and home-assistant on a Raspberry Pi for controlling my IoT devices.
It use MQTT topics and message structure similar to zigbee2mqtt.
i.e. nodemcu2mqtt/nodemcu-si7021 {"humidity":76.67,"temperature":28.60}
Use dev nodemcu-firmware or you may not able to connect to the mqtt broker with tls support.
Edit config-template.lua and rename it to config.lua
Upload all lua files and you are good to go
Read home-assistant.yaml if you need home-assistant configurations
| NodeMcu | Si7021 |
|---|---|
| 3.3v | 3.3v |
| GND | GND |
| 6 | SDA |
| 5 | SCL |
