MQTT work

[mhamidjamil]

I publish data like this:
mosquitto_pub -h 192.168.1.238 -p 1883 -t "esp8266/test" -m "Hello from terminal"
and subscribed like this:
mosquitto_sub -h 192.168.1.238 -p 1883 -t "esp8266/test"

[mhamidjamil]

For my Node-RED
mosquitto_pub -h 192.168.1.238 -p 1883 -t "/esp/ttgo" -m '{"t": 25.5, "p": 1013.2, "h": 50.0, "g": 350.0}'
DB: sensor_data
mosquitto_pub -h 192.168.1.238 -p 1883 -t "/esp/esp8266" -m '{"l": 5.5, "f": 10.2}'
DB: esp8266_data

[mhamidjamil]

How I access DB:

docker exec -it influxdb influx
USE sensor_data
show measurements
select * from sensor_data
quit

https://learnembeddedsystems.co.uk/easy-raspberry-pi-iot-server