Projects based on everyone's favorite low cost Linux Machine - The Raspberry Pi
Drones, Weather Balloons, Planes, Helicopters, Multicopters, and more. If it flies, it goes in here.
4 bit, 8 bit, tiny, micro, diy laptops, rebuilds, restorations & computers in a can
EV longboards to race cars, smartening up your smart cars, and monitoring your motors
FPGAs, CPLDs, PALs, and GALs. VHDL, Verilog, or Schematic. This is the place to check out Programmable Logic!
High flying orbital projects, and the ground stations to communicate with them
Projects which display data or convey information through blinky lights
50 projects that move on to the Semifinal round of The Hackaday Prize