03-11-2015, 04:23 PM
Chuck,
If your digital caliper is marked Pittsburgh then it's the newer version that has a different protocol than that shown in the Instructables write-up. Here's a link to a paper Rick Sparber wrote about the HF Pittsburgh marked digital calipers.
http://rick.sparber.org/electronics/hf6.pdf
I'll have to drag out my o-silly-scope and take a look at the signals. I can make you a voltage regulator that would convert the 3.3V or 5V on the Uno board to 1.5V so you could power the digital calipers with that instead of the hokey way the Instructables is doing it.
Ed
If your digital caliper is marked Pittsburgh then it's the newer version that has a different protocol than that shown in the Instructables write-up. Here's a link to a paper Rick Sparber wrote about the HF Pittsburgh marked digital calipers.
http://rick.sparber.org/electronics/hf6.pdf
I'll have to drag out my o-silly-scope and take a look at the signals. I can make you a voltage regulator that would convert the 3.3V or 5V on the Uno board to 1.5V so you could power the digital calipers with that instead of the hokey way the Instructables is doing it.
Ed