Now, grab your Arduino Nano, plug in the USB cable, and upload the code that will make your DIY radar system actually work. The code is fairly long and we have included it at the end of this tutorial.

🧪 How It Works The servo rotates from 15° to 165° and back. At each degree, the ultrasonic sensor measures distance. Distance and angle are sent to the PC via Serial. Processing reads serial data and ...

Once the radar detects presence of a suspected cat, the ESP32-S3 starts looking over Bluetooth, and if a known tag is found it will identify which cat or cats are outside waiting.

🚀 Project Overview This project demonstrates a cost-effective radar-guided defense system using an Arduino microcontroller and basic sensors. It detects threats using an ultrasonic radar, processes ...

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In this paper, we present a single-chip 65 × 42 element ultrasonic pulse-echo fingerprint sensor with transmit (TX) beamforming based on piezoelectric micromachined ultrasonic transducers directly ...

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When the radar signal quality is good, the EMD-based target detection approach performs well by comparing to the no target case. When the radar signal quality is poor and a single radar echo fails to ...

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