DIY electronics newsletter features builds for utility and learning

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A recent DIY electronics newsletter highlighted multiple practical projects. These include a quadruped robot for studying locomotion and an ESP32-based health sensor that reads heart rate and temperature. Another project uses an ESP32 to listen for a pressure cooker's whistle and send alerts via WhatsApp. The featured builds leverage common components like Raspberry Pi and ESP32 and emphasize that results are experimental and require assembly.

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