Uploaded September 2025 | Updated September 2026, 2 weeks ago

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Mark builds a mint tin emergency radio using an Arduino Nano, a TEA5767 FM receiver module, a custom PCB, and a coin cell–powered microcontroller-controlled supply. The challenge was designing a compact circuit that fits into a metal mint tin while avoiding shorts, using the housing itself as an antenna, and creating a power latch system for reliable operation. The radio is programmed to lock onto a single predefined station for emergency use, with careful soldering and component placement to make the design practical and portable: bit.ly/3VQzlIi

#arduinoprojects #RadioDIY #electronicsengineering

Chapters:

[02:54]-PCB Assembly
[03:53]-Soldering
[07:12]-Enclosure
[11:15]-Smoke Test
[12:13]-The Code
[13:53]-The Demo


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