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A discussion about a DIY civilian phased-array radar that provides 360° surveillance within a 6-kilometer radius and can detect small aerial vehicles.
An ESP32-based FM radio tuner project using TEA5767 module, featuring custom PCB design with OLED display and amplifier, documented on GitHub.
A DIY camera stabilizer project using ESP32, IMU, and micro servos costs $30–45 to build, focusing on educational value rather than competing with commercial products like DJI's RS 4 Mini.