my new project is again about using solar energy for a arduino system. Now I'm looking for a minimal setup called the "Minimal Solar Arduino". The idea is to find a system with minimal components and minimal power consumption that still has a useful application. My first test system has a standalone ATmega328 powered by a capacitor. The total capacity is 9,400µF consisting of two electrolyte capacitors with 4,700µF each I found in my workshop. This will give me enough information about power reducing. With these results I will choose one of the super-capacitors to extend uptime.
In the first steps I'm experiencing with different configurations like sleep mode, Brown-out detection disabling and so on.
If interested have a look at:http://heliosoph.mit-links.info/arduino-powered-by-capacitor-start/
getting started and setup descriptionhttp://heliosoph.mit-links.info/arduino-powered-by-capacitor-first-tests/
first tests and results
to be continued...