Introduction

Captures

J1
- Power to the RPi
  - “Plug power into this connector to power the Raspberry Pi”
- 3S LiPo (~12V) max input
  - ~6 V min input
  - powering from a 12V PDB pin is totally fine
    - DC input voltage should not exceed ~15V (for hot plugging)
- Intended for use with any custom harnesses off of the drone
J4 or J5
- “Either J4 or J5 or both will be populated (have a physical connector as defined inElectrical Terminology )”
- to pixhawk TELEM port for UART
  - “Connect this to the Pixhawk’s TELEM port using Pixhawk Electrical Connector Standards 1:1 harness”
J10
- Intended for connection to a harness to the pixhawk
  - see conversation here
  - the actual connector for J10 is likely DNPed with a wire soldered directly on as it’s 1:1 to the pixhawk gpio
- for uart killswitch
  - The input voltage to S on connector j10 determines whether the UART connection is allowed or disallowed
  - logic
    - connect S to GND to allow UART coms
      - with anything … jumper wire, cable, pixhawk, etc, the board doesn’t care
      - for intended use case please see RPI Interface Rev B
    - float S or pull to +3.3 V to disallow UART coms
      - if you dont get this please see Electrical Terminology
      - “Leaving a pin disconnected is known as leaving it floating. On this board, S is pulled to 3.3V by default. For more information: [link to tutorial about pull up/pull down/floating]“