This is actually not any sort of product or public project (!) – its something we designed to help me evaluate solar panels and how they act when charging batteries. Normally this requires a lot of multimeters and its a bit of a pain to do if you have to constantly change out panels. So we decided we would build a specialized tool that would assist us. Here is what we wanted!
- Portable! Its hard to test solar panels inside
- Ability to log to an SD card for long-term data analysis (to be added later)
- Keep track of the solar panel voltage
- Keep track of the battery voltage
- Keep track of how much current is going thru the panel to the charger
We figured if we had to build this, someone might find my notes useful. However, this documentation is primarily intended to demonstrate how to use the enclosure we carry in the adafruit shop.
This design is intended for ~6V panels, single Lithium Polymer cells and chargers. It can very easily be adapted to any kind of panel and charger, you’ll just need to adjust the resistor dividers and such!
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — BREAKING NEWS – Raspberry Pi maker Premier Farnell bought by Avnet @Avnet
Wearables — The ultimate glue selection
Electronics — Stay disciplined with ERC
Biohacking — Ava The Fertility Tracking Bracelet
Sorry, the comment form is closed at this time.