The circuit was designed to create a handy logic probe that can show off the logic states for high, low and pulsing outputs with the use of CMOS 4001 integrated circuit. Logic Probe – a handheld probe ...

Measurement instruments mustnot affect the circuits they’remeasuring. A logic probe, for example,must correctly detect logic levels, and itmust place no undue loads on the testcircuit. The logic probe ...

As I mentioned in my recent columns on the topic of adding pull-up or pull-down resistors to the inputs of unused or partially used logic gates and functions (see Part 1, Part 2, and Part 3), I was ...

The Logic Probe project was created as part of the final project for the course ETEC 225 at Centennial College. A logic probe is an essential tool for testing and troubleshooting digital circuits. The ...

Workshop space is precious, especially in smaller setups. The compact “Multitester” design combines a logic probe, clock pulse detector, and voltage detector into one audio-feedback device, ...

Logic probes are simple but handy tools that can be had for a couple of bucks. They may not be the sexiest pieces of test gear, nor the most versatile, but they have their place, and building your own ...