Send ESP Data via mosquitto mqtt bridge to thingspeak. Just a test.
A MQTT Sensor Project with Rayberry Pi 3 and KY-052 Sensor (pressure, temperatur)
Fuel oil level (gallons) for boiler using esp8266 and cheap ultrasonic distance sensor. Woodstove temperatures using TCs and ESP8266.
Sending data from an ESP programmed in MicroPython using MQTT protocol
Medida de temperatura ambiente con sensor ds18b20, conectado a ESP 8266 01, envío de datos mediante protocolo mqtt a cliente node-red corriendo en Raspberry pi, el broker mqtt corre tambien sobre la Raspberry
ESP-12E + 2 x DS18B20 + MQ-x Gas Sensor , when CO/LPG/NPG been detected , it will twitter warning messages.