According to his updates, it ran for a total of 10 weeks which is way impressive. All he could say was ” Still freakin running… ” . His low power calculations can be viewed on his Blog. Keep harvesting [K]enneth.
UPDATE (9/29/2010): This thing is still running… I’ll update when it finally dies…
UPDATE (10/11/2010): It’s still running. Caps are down to 1.73V, which is below the msp’s rated voltage, but it keeps spitting out numbers. I don’t know if I’m more surprised that the processor is still running, or the LCD.
UPDATE (11/2/2010): Still freakin running. Caps are down to below 1.7V, hardly above the bias voltage on the LCDs, so you can hardly see the digits and they take half a second to really resolve. Conclusion is that with a tiny solar panel, this thing could run indefinitely. I’m going to have to be careful on power budget as for anything else I add, since a single digit display by itself isn’t entirely useful. There is a lot of potential for this controller. I’m packing it in to free up the breadboard now. Happy hacking.