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The Vibration Sensor Module Vibration Switch SW-420

The Vibration Sensor Module Vibration Switch SW-420

The Vibration Sensor Module Vibration Switch SW-420  is based on the vibration sensor SW-420 and Comparator LM393...
Rs 109

Cute

5
By M.Lakshmi on
Module is nice, but Some times it is working when 5v and gnd is applied, in some cases it not exactly working [If 5v and gnd is applied and then switch on the power supply the D0 led is also on; actually power led will only on, D0 is on when touch/ vibrate then only D0 led will on ] what is the problem its manufactures problem or testing problem
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