How to connect to external payloads, ADCS boards, etc...
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Whether soldering a board onto the SMT slots or using an SMT header, the payload pinouts provide access to 3.3V, UART, I2C, SPI, and VBATT (via PYLD VDD).
The inner pads of the "payload slots" can accommodate standard 0.1" surface-mount headers. 2 row, 18 pos. surface mount headers (male or female) work best.
Header soldered to mainboardv01
Any of the pin names pictured above can be accessed in CircuitPython using the
See Pin Muxing for more details on what pins can do what functions
Similar to the radio modules' surface mount mezzanine style, the payload board slots can accept custom PCBs soldered directly to the board. You can even span across two payload spots to accommodate larger payload designs.
Payload boards on the KickSat-2 mission
Payload board on the V-R3x mission