solarPower changes

Basically I’m switching to gEDA, another open source EDA tool, I’m much more used to it!

I have planned to use a small 8 pin Attiny85 microcontroller, wich I’m going to buy from mouser, with a sharp memory display or a normal lcd as interface. The sharp one has the advantage that it’s very low power and with a very good readibility, the other one it’s much more easier to interface, a typical 4/8 bits parallel LCD.

The attiny85 has just 8 pins, so I planned to use a 74HC595 shift register to interface the display with a 4 bit configuration and switch the charging of the battery off when needed.