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Support for Brushless Crazyflie #168

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Added support for the brushless Crazyflie in interfaces/kr_crazyflie_interface. Unlike the brushed version, the brushless Crazyflie has to be armed before the motors can spin. To get around this, the Crazyflie interface now sends custom arming/disarming packets when Motors On and Motors Off are pressed.

Currently, when the drone is disarmed its internal state machine enters a locked state where a reboot is required (unsure if this is by design). The workaround is to send a reboot packet when Motors Off is pressed. During the reboot process, Motors On does not work, so the button is disabled for 3 seconds.

This code was tested on both the brushed and brushless Crazyflies.

@spencerfolk spencerfolk marked this pull request as draft January 29, 2025 20:42
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Converted PR to draft. @kashishkebab9 and I discovered this seems to break functionality with the original Crazyflie because the "arm" command that's implemented here causes the original Crazyflie to timeout. Need to figure out how to identify if using a brushless Crazyflie or a regular Crazyflie. Maybe we just move all these changes to a new brushless Crazyflie interface in interfaces?

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