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LIVE DIY: Designing The Smallest GameBoy

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In the late ’80s and ’90s, the Game Boy introduced many of us to portable electronics and embedded systems — simple hardware, yet brilliant engineering. Inspired by that legacy, this project reimagines it for today’s makers and electronics enthusiasts: the Smallest Portable Game Boy Retro Console and Wi-Fi Hacking Device.

At its core is the ESP12F (ESP8266) Wi-Fi module — compact yet powerful enough to handle both retro-style gaming and network scanning or penetration testing (in lab conditions). The design integrates a 3.3 V LDO regulator (SK6018CD4-28), tactile switches, a Li-ion/Li-Po battery connector, and flexible display support: either an OLED SSD1306 for a classic look or a TFT LCD (ST7789V/GC9A01) for full color. Both displays can even run simultaneously via I²C and SPI buses.

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All components are SMD to minimize footprint, with a total PCB diameter of just 4.5 cm. The circuit includes proper decoupling, pull-up/down networks, and antenna clearance for stable operation. A USB solder pad enables direct programming using FTDI or CH340 adapters, while spare GPIOs are routed to headers for external modules or expansion.

This isn’t just a retro console — it’s a learning platform for embedded design, power management, and Wi-Fi applications. Perfect for electronics students, hardware engineers, and makers who enjoy combining nostalgia with technical depth.

If you’d like access to the schematics, BOM, and source code, check the portable Game Boy and wi-fi hacking device.

Ashwini Sinha
Ashwini Sinha
A tech journalist at EFY, with hands-on expertise in electronics DIY. He has an extraordinary passion for AI, IoT, and electronics. Holder of two design records and two times winner of US-China Makers Award.

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