Hey i have this device Arduino Mega2560 R3 Built-in IOT Wifi ESP8266 32MB its look likes the Robodyn version, is there a way to use the thingerIo iot on this device?
I have tried using serial communication and nodemcu tutorial but the device just online not sending the data
Yes of course there is a way.
Note that you have two microcontrollers, one that can communicate (ESP8266) and the Arduino Mega that cannot, you need to establish communication between them so the Arduino can “communicate” across the ESP8266 to the cloud, but that is not true, the communication is made by the esp and will share the values to the arduino and the arduino will share resources to the esp8266 and this last will upload to the cloud, a kind of a protocol gateway.
Hope this helps.