Heyya! I'm trying to connect a Teensy 4.1 to an ESP32 -- mainly to send data from Teensy to ESP32, and then over to my computer. There are multiple RX and TX pins on both boards -- I was wondering which to use, if there are any other hardware connections that i have to consider, and if anyone has any suggestions; I'm quite a newbie to this world. The two will be in the same box. Thanks!
Teensy 4.0/4.1 to ESP32 via Rx & Tx HARDWARE question
- Thread starter koochak
- Start date
PaulStoffregen
Well-known member
Usually best to use RX1 and TX1 (pins 0 and 1). Any of the others can also work, just make sure you use the connect name rather than Serial1.
Don't forget to also connect GND between the boards.
Don't forget to also connect GND between the boards.