comment [2]
- From 190.48.67.31 on 14-02-2020 at 15:33:37
hi, i want to make a drumset for pc, is it possible to use this to detect the hits on the drums
and send it to a pc keyboard controller ?
IP: 190.48.67.31
MAY27
How to use a piezo transducer as a tactile switch
If you ever need a robust button for your next project you should really consider using a piezoelectric crystal as a main component. Piezo crystal has a property to generate voltage when mechanical force is applied by bending it, striking or even touching. This crystal is also used in car alarms as a vibration sensor.
In order to turn on a relay or have a transistor output to control some other electronic device, you need to build a debouncer circuit and also to prolong short bursts of impulse coming from piezo. The crystal is simply connected to a base of NPN transistor that will open when piezo generates enough voltage. This impulse if then fed into the NE555 which is in monostable configuration and it will issue a 1 second pulse after being triggered. How cool is that!
[ Source: awall99 ]
Kako iskoristiti piezo kristal kao dugme
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comment [1]
- From Nikola on 09-07-2019 at 21:26:22
Opsednut sam ovim tekstovima jer mogu mnogo da naucim!
IP: 87.116.179.239
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