[Mike] sent in a project he’s been working on lately. This little circuit can measure the capacitance of a capacitor by generating a frequency that’s inversely related to the capacitance. He originally got it working with his o-scope, and followed up by building a stand alone version that uses an ATTiny2313 and a text LCD.
attiny184 Articles
Thinkpad Style Keyboard Light
[Sprite_tm] keeps coming up with nice work. This time he sent in his thinkpad style keyboard LED lighting solution for his toughbook. I know, you’re thinking… ‘it’s a LED…’ He used an ATtiny13 to monitor the caps lock LED. If it’s operated two times in succession, the LED is turned on and off. Nice, clean and effective.
[By the way, Part 2 of my diy projector how-to is up on engadget. Look for part 3 later Tuesday.]
