tachometer electronic
grabcad
Tachometer laser contactlessdetermines the rotation speed in 5 secondssimple design and reliability in use tachometer, accurate readings, adjustment of the level of data determination by a potentiometerthe sketch can be improved, at your discretionyou will be able to measure the engine speed not only, the device also has a mode without laser illumination in response to changes in illumination. in general, you can think of a lot of ways to use the devicecomponents:Arduino UnoMultifunction shidlepower dc-dc converter 3.7 12vpower dc-dc charger 5v battery 16350x2pscphotoresistr x1pscHW-483 x1pscbutton on/off x1pscglass 2mm x2pscsubscribe so as not to miss my new things
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