And when I mentioned both Arduino boards and the Pi I wasn't necessarily meaning I'd run both on the same power source
I just wanted to state I'd be requiring both the nowadays oh-so-common 5V (RPI, Uno) and the back-in-the-day common 3.3V (Due). Although I do know 3.3V is common for microcontrollers.
who screwed me over -to put in very mild words- with the amazing service of UPS International that basically charged me more in handling taxes than the price of the product itself
What this means is that I must order things in a way that I won't be requiring extra, or else I have to resort to obtain them locally
With that said, I'm going to order some parts from SparkFun and Digikey, and I'm ordering the batteries as well
I know for some of you that might seem ridiculous as you can make 10 orders a month from several "local" shops (local being Amazon, Digikey, etc etc) and you don't worry for anything else. For us, people who import, things are different, so just try to imagine it's hard, that's all.
I'm not worried that this project (or projects actually) will run 24/7 for a year
what circuit is used to monitor battery juice left...
Appliances such as cameras, lap top computers which use LIPO batteries provide the batteries in a sealedbattery pack , which also contains an intelligent battery charger / balancer, so all the work of looking after the battery is done for you.If you buy LIPO batteries just as cells connected together, they wont have any battery management hardware built in , so you have to provide it yourself.