Guides
Make this specific thing, start to finish. Every guide says what it costs, how long it takes, and what it assumes - nothing here is a checkpoint, they're all things you'll actually use.
First time touching hardware? Start here.
Flight Controller
Build a rocket flight controller from scratch - STM32, IMU, barometer, microSD, and 2S LiPo power management on a 40x46mm board.
advanced1-2 weeks~$50
Macropad
Build a tiny keyboard that does whatever you tell it to. Solder it, flash it, use it every day.
beginner1 weekend~$25
Mechanical Keyboard
Design and build your own mechanical keyboard from scratch - custom PCB, 3D-printed case, and firmware you can rebind.
intermediate1-2 weekends~$60
RP2040 Devboard
Design your own dev board from scratch - schematic to PCB to fab. Learn what every component on the board is actually for.
intermediate10-15 hours~$15
Tamagotchi
Design and fab your own Tamagotchi from scratch - schematic, PCB, and a 3D-printed case. Then make it weirder.
intermediate2–3 weekends~$25
Wireless Split Keyboard
Build a wireless split keyboard with the XIAO nRF52840 - split matrix, mousebites, and ZMK firmware. Extension of the hackpad guide.
advanced2-3 weekends~$50