yes thats exactly rightSo, I understand that you use electrically conductive paint and longer traces have more resistance and that resistance change alters the frequency of the 555 timer.
Is that correct?
yes thats exactly rightSo, I understand that you use electrically conductive paint and longer traces have more resistance and that resistance change alters the frequency of the 555 timer.
Is that correct?
I agree. In some threads getting information from the person looking for help is like pulling teeth: a slow and painful process. We're whistling in the dark here.So much secret makes hard to understand anything.
If he removes the 100k feedback resistor, he should have a linear ramp (up and down). A constant current into a capacitor gives a linear ramp for his triangle.The op-amp does not give you a true triangular wave but an exponential ramp which you already pretty much have at the 555 generating the original square wave. Of course, with a separate device you have more control over amplitude etc. That why I asked if it had to be a true triangle with straight ramps.
Remove the 100k resistor above the 22 nf?If he removes the 100k feedback resistor, he should have a linear ramp (up and down). A constant current into a capacitor gives a linear ramp for his triangle.
Yes.Remove the 100k resistor above the 22 nf?
by Luke James
by Jake Hertz
by Luke James