To connect the ESP12e to the UART0. (Credits:197-murdock).
(Green = RX, Blue = TX)
GND can be taken from the AUX3 exposed connector.
| Board pins voltage | 5V |
| 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 |