Strictly speaking, a Theremin uses a pair of antennae that act as capacitors in a specific R/C circuit. Looking at ...

Arduino Library for the SparkFun Air Quality PM1/PM2.5/PM10 Sensor - BMV080 The SparkFun Air Quality PM1/PM2.5/PM10 Sensor - BMV080 (Qwiic) is an ultra-small, fan-less air quality sensor for sensing ...

Water Flow Sensor / Flow Meter Arduino Library, Flow Rate, Volume, YF-S201, YF-B1, OF10ZAT, OF10ZZT, OF05ZAT, OF05ZZT - hafidhh/FlowSensor-Arduino ...