Phantom 3 motor question

[fly-catchers]

Just curious but why does the P3 and I guess the P4 etc do that little pulse when you first start the motors? I am guessing it is something to do with the active braking? Neither my P1 or P2 do this effect.

 

[FantomFlier]

Just curious but why does the P3 and I guess the P4 etc do that little pulse when you first start the motors? I am guessing it is something to do with the active braking? Neither my P1 or P2 do this effect.

I doubt it serves any highly technical purpose, except perhaps to help tighten the self-tightening props.
.( Probably just a DJI programmer who thought it sounds cool.)

 

[Numone]

Just curious but why does the P3 and I guess the P4 etc do that little pulse when you first start the motors? I am guessing it is something to do with the active braking? Neither my P1 or P2 do this effect.

Yeah, it's two isn't it? Prop tightening perhaps? No real idea, but I'd like to know too!

 

[FantomFlier]

Prop tightening perhaps?

Snap!

 

[Slackware]

heads up drone is live so you keep your fingers out of the way.

 

[Kirby Johnson]

Just curious but why does the P3 and I guess the P4 etc do that little pulse when you first start the motors? I am guessing it is something to do with the active braking? Neither my P1 or P2 do this effect.

It is your Birdie's equivalent of blipping the throttle on a high performance bike sitting at a red light. Because you can.
In seiousness, it probably has to do with self calibration of the three phase motor drivers or a power on self test, but I am just guessing.