BASIC Stamp: Which one to get?

Oznog said:

Say this comes to mind. In an argument over whether a PIC could be a very reliable PWM motor controller (a foolish argument to me, of course it can be if done correctly) someone said that in a high noise environment you should be sure to put the reset on the pin rather than use an internal reset feature.

I could see that as useful if the reset pin was going to have an external reset pulling it down if some sort of external reset was necessary, yet no such feature was discussed. It would seem to me that noise on the external wiring and power supply spikes would be much more likely to mess with an external reset pin. Agree or disagree?

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coastergeekrtc said:

Wait, I've heard of the PWM Module but never knew what it did. So it can control motor speed? Will this work with my 14V motor so that I don't need to use a realy to switch between a reverse and forward state, in which reverse runs at a low voltage?

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Oznog said:

coastergeekrtc said:

Wait, I've heard of the PWM Module but never knew what it did. So it can control motor speed? Will this work with my 14V motor so that I don't need to use a realy to switch between a reverse and forward state, in which reverse runs at a low voltage?

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It can lower the effective voltage that the motor sees, thus controller the motor speed. You will need an external transistor. A reversible implementation is easy too, but you'll need 4 transistors and 2 different PWMs (most PICs with PWM have 2 different PWMs on it).

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