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I am designing a relay driver based on (D1 Mini) esp8266, and would like to use nextion 4832 touch displays. I am using Tasmota as the firmware for the same. I would like to use nextion touch display to toggle the IO the pins on D1 Mini, but because of using tasmota i am unable to add the required libraries in D1 Mini to write the logic for Nextion 4832.

to use nextion in this circuit, i need to use another MCU which contain the nextion switch code. Now how do i toggle the IO pins of one MCU from another. If that is possible.

If anyone has integrated touch display on the tasmota firmware it would be really be helpful.

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