Took me a while to get up and running on ATTINY. Set the fuses, code and flash... back to pin manipulation because memory is at a premium.
I'm playing around here to see what you can do with 1K flash this one is about 400 bytes:
All great but I left this one for a few hours and when I came back all the LED were on but no longer flashing... I had 324Ω resistors on them so at 5V and 1.8v fwd, we should only be about 10mA each. The chip has 40mA max per pin. I haven't had a chance to probe it but I'm suspecting that either the chip is unable to handle 20mA or the regulator went bad on the power supply...
All the resistors were very hot (not enough to burn)... about as far as I got.
I'm playing around here to see what you can do with 1K flash this one is about 400 bytes:
All great but I left this one for a few hours and when I came back all the LED were on but no longer flashing... I had 324Ω resistors on them so at 5V and 1.8v fwd, we should only be about 10mA each. The chip has 40mA max per pin. I haven't had a chance to probe it but I'm suspecting that either the chip is unable to handle 20mA or the regulator went bad on the power supply...
All the resistors were very hot (not enough to burn)... about as far as I got.