I invented a calculation way for pseudo Heat Index WBGT with the effects of solar radiation.
This DIY system has a temperature sensor, a humidity sensor, and an illuminance sensor.
It calculates an additional value for the pseudo WBGT, from illuminance lux value (lx).

Please see the detail of it on my blog site:
https://bokunimo-net.translate.goog/blog/raspberry-pi/5036/?_x_tr_sl=ja&_x_tr_tl=en

#wbgt #raspberrypi