8 layers37 × 40.5 mm

Watch main
ben5049/Smart-Watch
This project aims to take a cheap, common smart watch and upgrade it by replacing the screen and all internal electronics with custom hardware.
206 partsApache-2.0
Boards in 1 GitHub repository, designed in KiCad, that use the ADP5301ACBZ-2-R7 by Analog Devices (-40℃~+125℃@(TJ) 1 180nA 2.15V~6.5V 2MHz 50mA、500mA 800mV~5V Adjustable Buck Built-in Overcurrent Protection、Output discharge、Operating status indication、Cycle-by-cycle current limiting、Frequency synchronization Step-down type Yes WLCSP-9(1.6x1.9) DC-DC Converters ROHS). See how each wires it, with its parts, size, README and files; the ADP5301ACBZ-2-R7’s symbol, footprint and pinout are on its own page.

ben5049/Smart-Watch
This project aims to take a cheap, common smart watch and upgrade it by replacing the screen and all internal electronics with custom hardware.