Hi, I am building a trail camera where space (lack of) is a consideration in the case I an using.
So I would like to eliminate individual batteries for the components. I was actually an electronic tech about a zillion years ago, but have forgotten component values.
Here is my project...Camera=2 AA batteries =*3 volts. Flash/Video light = 2 AA batteries = *3 volts. Total 6 volts
- may be rechargable batteries which will be 1.2 volts each x 2 = 2.4
The motion detector card requires Operating Voltage: 4V - 14V DC.
I would like to tap DC off of the camera and light, to power the Card. I suspect it will take a diode from each source, to prevent voltage to the other source. this would allow 6 volts for the card. If this is right, what value?
Next, I have a 6-volts solar charger I would like to somehow use to keep the batteries charged. First, I am not sure if it is intended for NIMH (nickel-metal hydrate) batteries and will work. I know it works on SLA (sealed lead-acid) . If it does work, how could I use it to keep 2 separate 2AA=3 volt sources charged? Is it even possible?
Any ideas are greatly appreciated