Hello all, I am trying to use serial communication to send and receive data between my arduino mega and my esp 8266. Essnetially, my goal is to detect the voltage drop on an analog pin on my mega, send this info to my esp 8266, and then send an email to notify myself. To test this, I am sending the…

You should not be using SoftwareSerial with a Mega - you should use one of its 3 hardware UARTs. Serial1.print("1"); for instance will send the character for the numeral '1'. Your ESP sketch, for now, should be reduced to turning on an LED when a "1" is Serial.read. I believe the 8266 is Softwa…

Issue with communication between arduino mega and nodemcu esp 8266

Projects Programming

GolamMostafa August 7, 2023, 4:25pm 12

Available ADC channels with ESP32 MCU : 16
Available ADC channels with ESP32 Dev Module: 15 (Fig-1)

Figure-1:

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Issue with communication between arduino mega and nodemcu esp 8266

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