Comments (2)
Spektrum receivers communicate with the Smart ESC using 3.3V half-duplex UART on the signal pin. The UART is 115,200 baud or optionally 400,000 baud. There is more detail in the specification PDF in this repository. See section 5: https://github.com/SpektrumRC/SRXL2/blob/master/Docs/SRXL2%20Specification.pdf
SRXL2 requires relatively precise timing. I assume the Jetson will be running Linux, but I don't know if software running on an operating system can meet the timing requirements. You might need a microcontroller between the Jetson and ESC to handle the SRXL2 communication. As you can read in the spec, there is a 50ms handshake timeout and receivers normally send an SRXL2 packet to the ESC every 11ms. I don't know how strict the ESC is on packet timing. My coworker may know more about the timing requirements off the top of his head, but he's on vacation for the next week.
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Hi @jminer Thank you very much. Hopefully you coworker can help.
Another question, is it possible to link the Spektrum receiver and Jetson using wires so I can send signal to the computer from the transmitter?
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Related Issues (2)
- SRXL2 into PX4 framework HOT 1
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