Ground propulsion: ground test dejankification board schematic

[Jashaszun]

Just a schematic check for the dejankification board schematic.

Inputs:

• Ejection 5V/ground, UART Tx/Rx
• Servo battery (2S LiPo)

Outputs:

• Three sets of servo outputs (Battery voltage, PWM, ground)
• 5V and battery voltage power indicators

Arduino Interface:

• 5V, Rx, Tx, ground from Ejection
• PWM1-3 to servos