Robot Arm Software
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John Williams (567) 768 posts |
Or conductive foam such as is/was used to store sensitive devices. Resistance decreases on compression – often something easier to measure/use than capacitance! |
Steve Pampling (1551) 7932 posts |
Dunno so much, if the capacitor is part of an oscillator circuit you just count pulses per second. A hex CMOS inverter chip and a resistor pack chip would give you six measuring lines. The link is for a quickly found TTL logic inverter, I’d suggest a CMOS device (40106?) is probably better in the low power setups. I suppose the beauty of the oscillator design is that you can try variable capacitance and variable resistance without major component changes. |
Rick Murray (539) 13406 posts |
<aside>Reminds me of the A310’s keyboard</aside> |
Steve Pampling (1551) 7932 posts |
Ah, now that was a good example of why bread/biscuit and cake crumbs do not belong in keyboards. I think those were conductive rather than capacitive though. |
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