Logic Probe (Logic "Box"?)
Inspired by a post by Geir Andersen, I decided to make a little tester box. Nothing too fancy, and (I'm sure) not properly put together, but enough to be able to so some regular, every-day testing of robot stuff.
- High and Low states
- Continuity --Yes, I know that High and Low sorta covers this one but the rotary switch has 6 clicks! I has to use more than 2 or 3 or them!
- Pulse Width (in uS) with a high trigger
- Pulse Width with a low trigger
- Audio (and the ability to turn the gosh-darn beeping off!)
The brain for the whole system is a Atmega 328 who's real home is as the backpack for the LCD. Everything else was selected because it happened to be in the parts box. As a matter of fact, I even found the rotary switch in there --which still had the resistor bridge soldered on from the last project.