This is an Arduino-based Proximity Sensor circuit wired using the popular HC-SR04 Ultrasonic ranging module,used here for non-contact object detection purpose. The HC-SR04 module includes ultrasonic ...
[Mike] is doing a little series that is about DIY smart homes. While these wont turn your house into a Hal 9000 (and hopefully wont try and kill you), they are fun and fairly easy to carry out. Parts ...
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