norbyx
0
- Joined
- Apr 18, 2013
- Messages
- 1,202
- Points
- 48
So I don't really know what am I doing but I know maybe someone can tell me.
Here is the deal,
I was reading over at Sam's laser FAQ how to make a super cheap laser meter, and after reading part of it a thought crossed my mind, my sons broken mini helicopter, it was controlled by IR and it had to have a receiver... So I go and take it apart and find this
The receiving unit, I hook a multimeter from the center pin and ground and point my 532 laser at it, the result I get a 0.5 volt reading....
What am I doing??? What is this 0.5v reading? Is it just IR comming out of the laser?
If I get the receiving sensor close to a light bulb (ac filament regular bulb) I also get a reading out of it...
Could someone enlighten me?
Here is the deal,
I was reading over at Sam's laser FAQ how to make a super cheap laser meter, and after reading part of it a thought crossed my mind, my sons broken mini helicopter, it was controlled by IR and it had to have a receiver... So I go and take it apart and find this
The receiving unit, I hook a multimeter from the center pin and ground and point my 532 laser at it, the result I get a 0.5 volt reading....
What am I doing??? What is this 0.5v reading? Is it just IR comming out of the laser?
If I get the receiving sensor close to a light bulb (ac filament regular bulb) I also get a reading out of it...
Could someone enlighten me?