Hello everyone, For a new project (actually a add-on for an old one -> link ) I'm building a PAR meter. The difference between measuring PAR and Lumen, for example is the spectrum being analysed is different. Since PAR sensors are quite expensive I've found a way to do it with led's using 'Mims disc…

Measuring PAR (photosynthetic active radiation)

Erni April 2, 2013, 10:28am 6

I just found this.

5 minutes reading