Hello Guys. I will buy myself a PixRacer Pro. But I’m not sure if I have the right ESC’s. Can I use Dshot1200 BL_Heli32 Escs with PX4? Thanks for your help.
There’s initial experimental board support for the pixracer pro, but it needs thorough testing/review. https://github.com/PX4/PX4-Autopilot/tree/master/boards/mro/pixracerpro
As for DShot, I’d probably start at DSHOT150 or DSHOT300 which are already more than fast enough for typical loop rates.
DSHOT300 is 300,000 bits/second and each ESC command is 16 bits (11 bits throttle + CRC + telem request). 300,000 / 16 = 18.75 kHz ~= 53.3 microseconds/command. Even at a loop rate of 4 kHz (IMU_GYRO_RATEMAX 4000) which is 250 microseconds per iteration, DSHOT300 is plenty fast enough.
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