Xihe is a self-sustaining, ultra-low-power sensing platform designed for long-lifetime deployments with zero maintenance.
A 4-layer dev-board for the RP2040 with a focus on signal integrity and JLCPCB's basic components for affordable small runs using their SMT assembly service.
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PCB design files for RP2040 based SmartWatch. It features an accelerometer, a GPS module and a cellular module.