Remotely control LED with NodeMCU through MQTT IOT broker

Objective: In this project, we will show how control instructions are sent to an IOT device. The demo device is an LED connected to NodeMCU, an economical but power full IOT micro controller with wifi access. We will use MQTT protocolto transmit message between devices.  MQTT is a Machine to Machine IOT  protocol.  This protocol allows … Continue reading Remotely control LED with NodeMCU through MQTT IOT broker