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capacitive touch input PIR Motion Sensor HC SR505 proximity presence sensor module digital output
Thermoelectric Cooler Peltier 40mm 12v from Circuitrocks is ideal for DIY electronics builds
Are headers included
See our audio amplifier modules
Works with Arduino IDE / PlatformIO (e
Adafruit STCC4 and SHT41 - CO2, Temperature & Humidity Sensor - STEMMA QT / Qwiic 12v fan capacitive touch input PIR MotionAdafruit STCC4 + SHT41 breakout CO2, temperature, and humidity in one small board. Good for room air monitors, smart home builds, classroom sensors, and Raspberry Pi or Arduino logging. The STCC4 measures real CO2 via thermal conductivity, not a VOC estimate. Built for normal indoor air Adafruit notes it isn't for scientific CO2 testing or unusual gas environments. STEMMA QT Qwiic connectors plus header pins for breadboard use. Specs Product ID 6478
