Recent content by notzippy

I found this chart which shows the freq vs current draw, looks changing freq lower then 4Mhz does not amount to a whole lot of savings. From datasheet here http://www.microchip.com/wwwproducts/Devices.aspx?product=PIC12F683 (document http://ww1.microchip.com/downloads/en/DeviceDoc/41211D_.pdf...

The solar collector is 10" x 2" , batteries are 3x 1.2v ni-mh 2000mah, the most voltage I have seen across thebatteries is 4.2, but you are right it could be better protected. The floating pins are programmed to be pullups, so should that not protect the inputs ? The input voltage is monitored...

Attached better picture of cct, solar battery is always loaded across batteries, can the issue be powering up the ic ? The switch to turn it on / set the inputs is one ganged switch so the ic could get turned on and off and on again really quickly.

So I tried my pixaxe 08M2 in what I thought was a safe circuit, I tested the programming everything seemed to work fine, it controlled a solar light, the leds were driven through a pair of transistors from output c.0, it shut off after 4 hours and I checked the batteries, all seemed well. The...

Thanks for the help, was able to eliminate the pullup resistors, as promised here is a shot of the board and the rough schematic I drew from it. Nz

Hi Was hoping someone could help me out here, have some poorly programmed solar lights that I bought, they have a switch setting for staying on 4,6 hours or all night. The pinout is a dead ringer for 08m2, but the chip has no markings on it. The issue with the program is that when the switch...