Touch Controlled Resistor?
Hey I want to make a touch pad that if touch in a certain area will change the resistance level and hold this even after not being touched....how would I do this???
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Jan 12, 2010. 4:14 PMRe-design
says:
I haven't got a clue how this could be done exactly as you describe but I have another idea.
There is a chip, don't remember what it is called, but you input a binary coded number from 1-255 and it sets the resistance based on the number input. It works as a digital vol. control.
You can build a touch switch that will vari the resistance based on how hard you press. I've don't this using static control foam that chips are shipped on. Connect this to an a/d chip. That's an analog to digital chip. It takes an analog value and turns it into a digital number. Then feed that number into the resistor chip.
There is a chip, don't remember what it is called, but you input a binary coded number from 1-255 and it sets the resistance based on the number input. It works as a digital vol. control.
You can build a touch switch that will vari the resistance based on how hard you press. I've don't this using static control foam that chips are shipped on. Connect this to an a/d chip. That's an analog to digital chip. It takes an analog value and turns it into a digital number. Then feed that number into the resistor chip.
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