This took about a month of weekends. The result is a full-size bartop arcade running RetroPie, with proper arcade buttons, joystick, marquee lighting, and authentic sound. Cabinet: • 18mm MDF cut on a friend's CNC — I'll share the DXF in the comments. • Dimensions: 460mm wide ×…
Goal: a wireless soil + air sensor I can stake into the garden, powered entirely by sunlight, that runs for at least 6 months without intervention. Got there — has now survived monsoon season unattended. Power chain: • 6V / 2W solar panel (mini polycrystalline, ~115×85mm) • TP40…
What it is: a flat MIDI controller with 12 capacitive touch pads on a sheet of acrylic. Plug it into a computer over USB and it shows up as a native MIDI device — no drivers, no extra software. Ableton, FL Studio, GarageBand all see it instantly. Why Teensy LC: it has native USB…
This is NOT a real radiation detector. It's a teaching tool that produces statistically realistic Poisson-distributed clicks at any background rate you choose, so you can demonstrate randomness, dose-rate maths, and counter electronics without owning an actual SBM-20 tube. Why b…
Goal: a replacement dashboard for my older hatchback that shows RPM, speed, coolant temperature, fuel level, and battery voltage on a big touchscreen. Pulls live data from the car's OBD-II port over Bluetooth — no manufacturer subscription, no cloud, no nonsense. Parts: • Raspbe…
The classic hard project. Beautiful in theory, brutal in tuning. Took me 3 evenings to get it balancing for more than 5 seconds — and another evening of tuning before it could be pushed and recover. Parts: • Arduino Nano (or any 16MHz AVR) • MPU6050 6-axis accel + gyro module (I…
