It is a due based board and has a serial port available on the backside of the board. The serial port is a 4 pin header.
Alternate Module placement for increased WiFi range (outside metal chassis, antenna has vertical polarization)
| Board pins voltage | 3.3v |
| Board firmware | Repetier for Davinci |
| Board configuration note | Enable wifi in the firmware configuration file |
| ESP3D configuration note | Raw serial, no SD |