A real-time radar system built on a single Arduino. The servo rotates an ultrasonic sensor across a 150° arc, measures distances, drives a buzzer alarm when objects get too close, and streams data to ...

When it comes to electronic design, breadboarding a circuit is the fun part — the creative juices flow, parts come and go, jumpers build into a tangled mess, but it’s all worth it when the circuit ...

Even when we clean, because of laziness or lack of time, we often throw all waste into the same bin without separating ...

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Live local Wi-Fi sensing with CSI: real-time motion detection + visualization, with optional bridges to: ...