Friday, May 04, 2018

Digital Logic Probe Circuits

Digital Test and Measurement Starts with Logic Probe - Any point in a Digital Circuit can be High, Low, Float means TriState. The High Low in a 5V CMOS circuit is just 0V and 5V. In TTL and ECL it is much different.

The Test Point could also be Pulsing or have analog values and waveforms, as in Mixed Signal Chips. Here are Logic Probe Circuits you can Build in your own Home Lab.

Digital Logic Probe Circuits

Digital Logic Probe Circuits

Multi-Instrument Digital Assistant – PIC16F84A

Multi-Instrument Digital Assistant - PIC16F84A - "It contains four instruments in one unit: logic probe, single channel logic state analyzer, frequency counter and serial code receiver."

Small Electronic Testing Tools

Then first thing in Electrical testing is the Continuity Tester, Then we use the Neon Mains Screwdriver, Then we need an Voltmeter or an Ammeter. In electronics we need a OhmMeter and LCR meter too.

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