PBP projects for R/C models

[ScaleRobotics]

I was always led to believe it was typically 1ms to 2ms with a 20ms frame rate this gave 1.5ms pw for centre stick, at least that's what I've always based my SSC type projects on.

Edit: oops, yes I meant to say 2.1 as the highpoint, not 1.1. Thanks Malc!

Hey Malc,
Yeah, me too! As a basic rule it works. But then I built my first passthrough device, I built it for that range and it got discombobulated when the signals from my transmitter exceeded the 2 mS. My transmitter has endpoint adjustments, so it allows you to go beyond the 1 to 2 mS. Some transmitters will only give 1.1 to 1.9ms.

Check out the HiTech web site regarding the signals:

Q. What signal do servos require to operate?
A. All Hitec servos require a 3-4V peak to peak square wave pulse. Pulse duration is from 0.9ms to 2.1ms with 1.5ms as center. The pulse refreshes at 50Hz (20ms).

You are probably right, I just was not sure if a forward and reverse speed control would be centered at 1.5 mS. My planes don't have reverse.