Awesome! Could you provide a sample video and maybe a picture of what you have done?
I'm a little bit concerned about the noise that comes from the brushed motors..
Did you use an extra battery for this?
I don't have a way to record video, unfortunately. Video quality is about what you'd expect from a camera the size of a postage stamp. Certainly flyable, though. I wish it had a bit of a wider lens but that's about it.
No video noise, the switching noise from the motor PWM is nothing to worry about. Motors draw only a couple of amps total, remember that people are flying 250-size quads that draw dozens of amps at full throttle with no video noise.
I'm doing something similar to this - my main concern with running the camera off the same battery is the situation where the quad out lasts the camera. My camera is rated for 3.2v-4.2v. I've definitely seen the crazyflie telemetry spitting out measured voltages as low as 2.8v while still flying okay - is the telemetry reporting the same measurement I would see directly on the battery poles?