Mark's journey into this electronic game design began at the age of 10 when they crafted their first digital roulette game using a schematic from a "300 series" Elektor book. The game, featuring 10 LEDs arranged in a circle, utilized a clever RC network to generate a clock pulse for a standard chip in the 4000 series, accompanied by a speaker for added effect. Despite their susceptibility to cheating, Mark and their siblings found joy in its simplicity. Now, three decades later, Mark embarks on remaking this childhood creation for family game nights, opting for an ESP32-based design with enhancements like more LEDs and an audio board.
Watch the Video:
Components and Parts:
Mark's approach to the remake prioritizes minimal hardware components, relying heavily on programming for functionality. They utilize a DOIT Devkit 1.0 board housing an ESP32, although alternatives like the Raspberry Pi Pico are viable. Additional components include an I2S audio board with a speaker, push button, power button, and battery. Mark simplifies the project further by employing WS2812B pixel LEDs, already arranged on curved printed circuit boards, with four boards forming a circle of 60 LEDs. Completing the setup is a carefully crafted housing to house the components seamlessly.
Putting Together the Pieces:
Assembly primarily involves creating a hole in the housing for the speaker, with the LEDs easily affixed around it using hot glue. Mark advises minor adjustments such as drilling holes and making cuts for the switches and battery holder. Overall, the mechanical work is minimal, with the focus on ensuring the components fit snugly within the housing for a polished final product.
The Final Touches:
Mark's revamped roulette wheel, devoid of its original cheat mode, embodies a blend of nostalgia and modern design. The ESP32-driven functionality, coupled with an enhanced LED display and audio capabilities, elevates the gaming experience. Whether it's for family game nights or a trip down memory lane, Mark's creation stands as a testament to the enduring appeal of DIY electronics and the joy of reinventing childhood treasures.
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Download & Links:
Bill of Material:
| Product Name | Manufacturer | Quantity | Buy Kit |
|---|---|---|---|
| Plastic Enclosure, Instrument, ABS, 60 mm, 200 mm, 200 mm, IP40 - PF20-6-20D | Takchi | 1 | Buy Now |
| Battery, 9 V, PP3, Alkaline, 475 mAh, Snap Contact -MULTICOMP PRO MP-PSG91114 | Multicomp Pro | 1 | Buy Now |
| Battery Holder, Safety, Side Entry, Snap On, 1 x PP3 (9V) - MP000303 | Multicomp Pro | 1 | Buy Now |
| Pushbutton Switch, 12.7 mm, SPDT, On-(On), Round Raised, Red - R13-502MC-005-R | Multicomp Pro | 1 | Buy Now |
| Speaker, Mini, 6.4 cm, 3 W, 8 ohm, 200 Hz to 15000 Hz - Visaton 2918 | Visaton | 1 | Buy Now |
Additional Parts:
| ESP32 DOIT DEVKIT 1 |
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I2S Audio Board based on MAX98357
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Some wires
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