hi there, i am new here. i have a project idea in mind that i would
like to develop. my knowledge of pic programming/interfacing is basic
so i should understand the input u fellas give to me.

ok, this is what i have in mind:

use a pic to control an injector via pwm to supply more fuel for a
turbo upgrade. the input would be the ignition signal (rpm). i would
program different duty cycles at different rpms to supply varying
amounts of fuel.

these are the following questions i need to start of:

1. how would i interface the ignition signal to the pic, the hardware part?
2. what pic would be the best? i already have pic10f202. would it be
ok to use this? i really want to.
3. how do you "detect" 1 rpm with a pic?

i don't want to use pics with pwm built-in, as i believe that would be
too complicated for me. i want to keep the circuit as compact as
possible so if i can use the 10f202, all the better.

thanks for anyhelp.
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