Talon PWM Questions (Independent Project)

[DonRotolo]

Originally Posted by Ether

Remember, this is pulse width modulation, not duty cycle modulation.

Your Raspberry Pi will happily produce duty cycle modulation (sometimes mis-named PWM). I bet it can also produce pulse width modulation, but you need to take care to produce the right signal.

For a talon, deliver a 1.5 mSec pulse every 20 mSec (or so) and you'll be in "neutral". Change the pulse to 1.0 mSec and it's full 'reverse', and 2.0 mSec and it's full 'forward'. (Of course, pulse times in-between produce speeds in-between).

Note that the talon can deal with slight inaccuracies in the rate of pulses (the 20 mSec), and often responds well to pulses shorter or longer than 'full speed'.

Let us know how it turns out!