Read CO2 and tVOC data using CCS811 I2C sensor breakout by itbrainpower.net. Temperature and humidity read compensation notes.
by Dragos Iosub
Replace the PIR motion sensor with this module and it's 360° detection angle baby!
In this tutorial, you’ll learn how to use the LSM303DLHC GY-511 compass module with Arduino to make a digital compass.
A simple electromagnetic sensor to measure current induced by a moving magnetic field!
by Jen Fox and Hacking STEM
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