Added 2 switching transistors to get all digits working
Added cds light sensor to change led brightness according to current light conditions
Led color is white, but is hard to photograph - looks white and not blurry in real life



changed from intenal oscillator to external crystal oscillator- time is very accurate now
led looks blue here, but looks white in real life


added rotary encoder w/switch



New Tek TDS2012B


Adjusting probe


Hooked up to cds photocell, 120hz ripple from flourescent lights.


Hooked up to crystal pin on ATmenga168, 8Mhz crystal


rotary encoder- one direction - CH2 goes low before CH1


with 0.1uF capacitor


rotary encoder- the other direction - CH1 goes low before CH2


with 0.1uF capacitor























THIS BOARD IS CAUSING ME GRIEF! Intermittant power- I need a higher power magifier to look the board over