Optimising the Timer accuracy

A project log for UV-Timer

simple Timer-Addon for my UV-exposure unit

java-jimjava-jim 06/03/2015 at 10:270 Comments

I measured a 15 seconds deviation in a 10 minutes exposure run resuling from the uncalibrated internal 8MHz Oscillator. So an enhancement could be the tuning of the internal osccillator on AVRtiny84 chip with the OSCCAL register...