EnviroDIY | Paulo | Activity https://www.envirodiy.org/members/paolivas/activity/ Activity feed for Paulo. Wed, 15 Apr 2026 23:57:29 -0400 https://buddypress.org/?v= en-US 30 hourly 2 b30f98ac555f62bb4d53a52f40f7b9fe Paulo replied to the topic Quantum Sensor in the forum Mayfly Data Logger https://www.envirodiy.org/topic/quantum-sensor/#post-15722 Sun, 25 Jul 2021 23:56:06 -0400 Thanks so much for the info.

At the moment, it is difficult to get my hands on an Apogee because of time constrains.

What do you think about using a voltage divider?

 

]]> 622e980df7003375594845bb0d6df9e9 Paulo started the topic Quantum Sensor in the forum Mayfly Data Logger https://www.envirodiy.org/topic/quantum-sensor/ Sun, 25 Jul 2021 06:28:17 -0400 I am trying to use a Li-COR Quantum (LI-190R-BL) sensor to collect PAR data using a Mayfly cataloguer (v0.5b).

I used a 620 ohm resistor to convert the sensor current out put to volts (0-5votls). Then, I connected the sensor to: A0 and GND, and tried to read the out put using this simple code, but I did not have luck.

Any ideas?

void setup()…[Read more]

]]> 6b954a11ec7bcdf66466c783f6f845fa Paulo became a registered member https://www.envirodiy.org/activity/p/6366/ Sun, 25 Jul 2021 06:09:01 -0400 0