BS2 Voltage Sensor
I'm looking to build a more accurate voltage sensor for my Observatory Control System. Currently I simply light up an LED and measure the brightness with a Light to Frequency converter chip. . .silly, but it's fairly accurate to within .2 of a volt. That said, I want something more accurate. . .I've seen some analog to digital converters that might do the trick, but I haven't the slightest idea how I would wire one up. . .anyone have a guide? Again I've searched like crazy in the forums, but the search features seem fairly limited. Any help from the gurus is appreciated as always!
-Jeff
-Jeff
Comments
Pretty much all the tutorials are in the Stamps in Class Downloads area.
Go to the main Parallax webpage and select the Resources tab. You'll see a list. Pick Downloads, then the next list will have Stamps in Class Downloads.
http://www.trossenrobotics.com/phidgets-precision-voltage-sensor.aspx
Seems like a nicely packaged solution. . .I'm searching again now and see the photocell solution (I never thought of that!). I initially tried to use a photo resistor, but I got pretty widely different readings from day to day for reasons I can't explain. I'll look for A/D solutions next. Thanks!
-Jeff
-Jeff