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HOW TO USE NODEMCU TX RX PIN SEPERATLY?

PostPosted: Fri Jul 09, 2021 4:33 am
by SheltonCoolio
Hi!
I am using nodemcu with esp8266 basic & creating page works perfectly.

I am sending para from usb to webpage & updating on page.

But when i send data from arduino to rx pin of esp8266 then garbage is receiving.

It seems me rx pin is already connected to usb to serial convertor chip , so data goes incorrect.

can some on have any solution ?

Thanks

Re: HOW TO USE NODEMCU TX RX PIN SEPERATLY?

PostPosted: Mon Jul 12, 2021 2:53 am
by QuickFix
You can:
  • Remap UART0 from GPIO1/3 to GPIO15/13
  • Remove R10 (TX) and R12 (RX) from the NodeMCU board (schematic)
  • Don't use a board with a built in USB convertor