Tom_plays_tennis
New User
Hi,
I have a Silent Partner Lite which I love. However, it is too consistent! I want it to toss short and long balls and mix up spin, because I am developing bad habits (poor foot work, and poor spin reading). Since spin and speed are potentiometers (variable resistors), I could imagine using using a arduino (or even a 555 timer) and mosfets to vary the resistance using pulse width modulation (PWM). I've seen some threads which mention hacking on the silent partner, but I cant find them anymore. Does anyone have the circuit mapped out? I can otherwise figure it out, but it would be much easier to analyze the circuit ahead of time without having to probe the whole thing. If I could get it to vary the speed randomly from inside the service line to the baseline, I'd be utterly happy. I think this should be possible with as few as 1 mosfet transistor and some associated analog or digital circuitry.
Thanks,
Tennis Tom
I have a Silent Partner Lite which I love. However, it is too consistent! I want it to toss short and long balls and mix up spin, because I am developing bad habits (poor foot work, and poor spin reading). Since spin and speed are potentiometers (variable resistors), I could imagine using using a arduino (or even a 555 timer) and mosfets to vary the resistance using pulse width modulation (PWM). I've seen some threads which mention hacking on the silent partner, but I cant find them anymore. Does anyone have the circuit mapped out? I can otherwise figure it out, but it would be much easier to analyze the circuit ahead of time without having to probe the whole thing. If I could get it to vary the speed randomly from inside the service line to the baseline, I'd be utterly happy. I think this should be possible with as few as 1 mosfet transistor and some associated analog or digital circuitry.
Thanks,
Tennis Tom
