tg_mqtt_relay_4_may_2019
TG MQTT Relay 4
This project is for the KB light stand watering. A Chinese 4 relay board is driven by a Boarduino. The boarduino gets relay on/off commands from the ESP8266 serial line. The ESP8266 is used as a WiFi and MQTT co-processor. The ESP8266 attaches to the WiFi and decodes MQTT commands. A single character is output on the serial line to the Boarduino. The characters chosen and their function is as follows:
| Command | Character |
|---|---|
| Rly 1 on | '0' |
| Rly 1 off | '1' |
| Rly 2 on | '2' |
| Rly 2 off | '3' |
| Rly 3 on | '4' |
| Rly 3 off | '5' |
| Rly 4 on | '6' |
| Rly 4 off | '7' |
tg_mqtt_relay_4_may_2019.txt · Last modified: 2019/05/14 14:27 by 192.168.1.36