Introduction

• https://uwarg-docs.atlassian.net/wiki/spaces/EL/pages/2594996231/RPI+Interface+Rev+B?atl_f=content-tree

Captures

Open

Open

Open

Usage

• 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 https://uwarg-docs.atlassian.net/wiki/spaces/EL/pages/2594996231/RPI+Interface+Rev+B?atl_f=content-tree

      • 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]“