Logic test pen high and low level test 5V 3.3V digital circuit debugging electronic production
Logic test pen, an essential tool for electronic design enthusiasts! Do not use multimeter to measure the level, a hand measurement, convenient and fast oh!
Baby advantage:
1, the size is moderate, suitable for hand-held
2, elastic probe, convenient measurement
Dupont wire power supply, development board, learning board necessary tools
4, three state display: high, low level, high resistance (off)
High/low level (VCC=5V) :
- Red light (high level) -- above 2.4V
- Green light (low level) -- below 0.6V
3, blue light -- 0.6-2.4V or disconnected