I'd like to jump into this post, rather than starting a new thread, as the OP seems to have had his question answered. I read through the battery FAQ and understood about half of it, so I still have some questions.
I have the following equipment:
- Arduino Uno
- Xbee v1
- IR Emitter & Detector
- LinkSprite JPEG TTL Camera
- 6v 2w solar panel
- 3.7v / 850mAh LiPoly
- Adafruit LiPoly Solar kit
I bought the battery a while back thinking it would be strong enough to power the whole setup on its own. It appears I was quite wrong. But I'm confused as to why. I've read the battery FAQ but only understood parts of it. If the Arduino Uno accepts voltages from 6-20v, is it because my battery is 3.7v that it can't power it, or because it can't push enough current? On the same note, why is the solar panel unable to power it if it's 6v?
My goal is to have the battery power the whole setup while the solar panel charges/supplements it during the day, so that the battery can power it throughout the night, rinse and repeat the next day. Is the 6v/2w panel not strong enough to get it the juice it needs, and is my battery too weak? I've already ordered a new 3.7v, 2700mAh LiPoly to see if there's a difference, but I'd like to know the theory/logic behind it.
It's set up correctly. The solar panel is plugged in, and the PWR GOOD/CHRG LEDs are blinking (not lit very well right now). The battery is plugged into it, and the LOAD is connected via a soldered 2 wire JST-to-2.1mm converter, and plugged in to my Uno's DC jack. My XBee's green power LED (I'm using the Adafruit XBee Adapter also) is blinking steadily as if it's got enough power, however my Uno's LED on pin 13 has not shut off as it normally does after resetting. As if maybe it is stalled while booting up. My IR emitter LED appears to have a correct voltage drop, however it looks like the total voltage coming out of 5V is closer to 3V or so, which seems to tell me that it's just not getting enough power :(
Is this a realistic goal? Will a larger capacity battery make the difference? Should the 6v/2w panel provide enough output to power the setup on its own, or should I rely on the panel strictly to keep the battery topped off?
Thanks so much for any help or direction you can provide, even if it's just links to other guides. I'm happy to learn the stuff, it just seems like I'm going in circles and spending money on dead ends.
[Edit]: Oh and just to add: Will using two of the 6v/2w panels make a difference, provided that they can get the same amount of sun exposure?