This article details a DIY presence sensor project inspired by the Everything Presence Lite kit, utilizing a millimeter wave sensor and a BME680 environmental sensor for accurate motion and heart rate detection.
comp_gas = log(R_gas ohm » ) + 0.04 log(Ohm)/%rh * hum %rh » .
log(R_gas) + 0.04 * hum
log(R_gas) + 0.04 * hum
