I'm currently trying to use install a radiation detector or my arduino using a RadiationD-v1.1(CAJOE) board. However, I'm having some trouble and noticed an input pin labeled p100 that could possibly help. Unfortunately, there is no manual with that came with this so there is no way for me to figure out a use for it. Does anyone have ANY idea what this is used for? Thank ya'll so much !!
You would get a quicker answer if you told us which Arduino board you are looking at!
Paul
A previous post here says that you use the three-pin header. The GND pin goes to Arduino GND. The 5V pin goes to Arduino +5V and the “Vin” pin is the output (yes, stupid name) that goes to an interrupt pin (2 or 3 on an Arduino UNO).
have a look at this post
https://forum.arduino.cc/index.php?topic=536408.0
BTW, that p100 pins is on the geiger board, your wording/phrasing is a bit confusing.
There are quite a few references to that module, try Google