2 layers57.1 × 12.7 mm

Keyboard
jhud/hackwatch
A smartwatch running on the ESP32 + Arduino. Designed to run on cheap boards that have inbuilt LiPo battery circuitry and an OLED screen.
14 parts17GPL-3.0
Printed circuit boards designed in KiCad and published on GitHub, each with its parts, layers and size, its README and its files; open any of them in PCBKit.

jhud/hackwatch
A smartwatch running on the ESP32 + Arduino. Designed to run on cheap boards that have inbuilt LiPo battery circuitry and an OLED screen.

jhud/robot_board
Controller board for building servo-based robots, such as hexapods.