Trigorilla Pro B V1.0.2 board

board

To connect you can use pins 2 and 3 of the CH340G chip. (Orange = RX, White = TX) GND and 3.3V can be taken from left side of the board. Baud rate is 115200.

step1

Board pins voltage 3.3V
Board firmware Marlin
Board configuration note None, it use same serial as USB port so don't use both together
ESP3D configuration note Raw serial, no SD