Hi Sara and Rui
I have the board communicating on LoRa sending an internal counter value to the receiver.
Now, I want to take serial data from an external source and input it to the TTGO LoRa32 SX1276 OLED board.
The standard ESP-32 has three hardware serial ports U0, U1, and U2. U0 is dedicated to the usb serial connection. I have used both U1 and U2 successfully.
The LoRa board has U0 connected to the USB, there is no U1, and U2 Rxd is used to reset the OLED.
How do I get serial data into the OLED board?
 
Thanks,
Pete