The FDC2214 doesn’t measure capacitance directly — it measures the resonant frequency of an LC tank, and that one design choice decides what it’s good at. Here are twelve things you can build with it, from liquid level to micron-scale displacement, with the numbers behind each one and the places where a different chip would serve you better.
HealthyPi Move NEXT is mostly a free over-the-air update to every Move ever shipped — a health-data layer rebuilt on MCUmgr, epoch aggregation that takes on-device retention from 1.2 days to 104, continuous HRV, and a redrawn watch UI. There’s also a redesigned optical stack, but that one’s a board change. Here’s how both work.
Explore the most common real-world applications of capacitive sensing — from non-contact liquid level measurement and proximity detection to industrial IoT — and how open-source boards like the FDC1004 breakout and Sensything CAP make it accessible for makers and engineers.
