2 layers24.4 × 24.4 mm

F-91w
FETup/ReTrace
ReTrace is a watch mod for the infamous Casio F-91W. Inspired by CarrotIndustries Pluto mod. Borrowed his PCB design as its well done and tested. Replaced the MSP430 controller with PIC24.
32 parts
Open-source boards designed in KiCad by FETup on GitHub, from 1 repository. A board’s address here is its repository’s there.

FETup/ReTrace
ReTrace is a watch mod for the infamous Casio F-91W. Inspired by CarrotIndustries Pluto mod. Borrowed his PCB design as its well done and tested. Replaced the MSP430 controller with PIC24.