Microprocessor controller - version 2
I posted a link to my first (well not quite first) microprocessor controller here
and this is a second version.
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It has been constructed a little bit more like a production version with less plug-in wires inside, has a couple of control options removed, is wired rather than wireless and is built with piggy back control box on a Parma hand unit.
This makes it more robust, easier for other people to use (no synching of the control unit with the handset), feels more conventional and moves the control settings onto the had unit (just to try out a differnt option).
This is still a prototype though and has basically the same drive and braking algorithms as the first one but has additional control over the output PWM frequencies. I noticed that commercial controllers were using higher frequencies than my first version and this one allows me to try different freqencies and change them according to trigger position, driving or braking or current/voltage at the motor. And unsurpisingly this frequency modification has an effect (more noticeable with some cars/motors than others).
Great fun![smile.gif]()
I posted a link to my first (well not quite first) microprocessor controller here
CODE
http://www.slotforum.com/forums/index.php?showtopic=79828
and this is a second version.
It has been constructed a little bit more like a production version with less plug-in wires inside, has a couple of control options removed, is wired rather than wireless and is built with piggy back control box on a Parma hand unit.
This makes it more robust, easier for other people to use (no synching of the control unit with the handset), feels more conventional and moves the control settings onto the had unit (just to try out a differnt option).
This is still a prototype though and has basically the same drive and braking algorithms as the first one but has additional control over the output PWM frequencies. I noticed that commercial controllers were using higher frequencies than my first version and this one allows me to try different freqencies and change them according to trigger position, driving or braking or current/voltage at the motor. And unsurpisingly this frequency modification has an effect (more noticeable with some cars/motors than others).
Great fun
