
This lesson will show the basic MQTT protocol usage on the NodeMCU board.We use the MQTTBox as the MQTT client here, and we will use the NodeMCU to complete following operations:Publish “hello world” to the topic “outTopic” every two seconds.Subscribe to the topic “inTopic”, print out any received ...
By:
osoyooproductContinue Reading »from Instructables: exploring - featured http://ift.tt/2wxAfjB
via
IFTTT