How can I stream data between two NodeMCU devices?

IoT Devices
1

I am trying to develop a system in which two NodeMCU devices stream data between each other.
When the button on NodeMCU A is pressed, an LED on NodeMCU B is lit in real time, and vice versa.
This would work similarly to a morse machine, where pressing a button on one end would deliver it to the other in real time.

Is this streaming between devices possible to do with the Ubidots platform?

2

Hi there, yes, you should use MQTT. To reach your goal, with NodeMCU A you should send values to a variable in your Ubidots account and you would just need at NodeMCU B side to subscribe to the variable to get real-time updates. Please refer to our docs for further information about MQTT protocol and MQTT subscribe firmware examples.

All the best