Hackaday reader [JumperOne] was in need of a logic probe that he could use to reliably test some tiny .5mm pitch IC pins. The probe that came with his oscilloscope was a bit too big and not near sharp ...

A simple PIC12F683 microcontroller was used to create a logic level tester which has the capability of measuring 5V TTL up to 24V PLC logic levels. A simple PIC12F683 microcontroller was used to ...

[Robert Morrison] had an ancient HP 545A logic probe, which was great for debugging SMT projects. The only problem was that being 45 years old, it wasn’t quite up to scratch when it came to debugging ...