Ethernet FeatherWing with Xenon - Serial 2

[rickkas7]

That is correct. It's not currently possible to Serial2 on the Xenon at the same time as the Ethernet FeatherWing.

Another option is to use an I2C or SPI UART like the SC16IS740. That does work on mesh devices.

Adding a serial port using the SC16IS740

I added a library, SC16IS740RK, that makes it possible to use up to 4 SC16IS740 I2C UARTs off the I2C bus (D0 and D1). The chips support from 50 to 115200 baud and can go higher with different oscillators. Basically, just create the object and call begin() and it works like a regular UART like Serial1: #include "SC16IS740RK.h" // Pick a debug level from one of these two: SerialLogHandler logHandler; // SerialLogHandler logHandler(LOG_LEVEL_TRACE); SC16IS740 extSerial(Wire, 0); char out = ' …