Case for HC SR04 detector
Description
Hi , I Share With You This Little Box That Can Contain A Welded Sr04 Hc Sensor Has A Board Arduino Mini Pro . The 2 Holes For The Sensor Are Largely Sized To Accommodate Sensors That Would Not Have The Same Spacing . There Are Often Differences Between 2 Hc Sr04 Sensor . I Use This Circuit With A Relay On The Electric Power Of My Living Room Lamp To Turn On Or Turn Off . Made In Nybi.Cc
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