Lithium-Ion Polymer (LiPo) batteries are a favorite of ours. Very light weight and some of the highest energy densities available.

The SparkFun Indoor Air Quality Sensor - ENS160 (Qwiic) makes use of the ENS160 from ScioSense - a digital multi-gas sensor solution with four sensor elements that can be used in a wide range of applications including building automation, smart home, and HVAC.

If you’ve ever wanted to simulate live video on an array of RGB LEDs (kinda like the Jumbotron at a sports game), this tutorial is for you.