1:47-1:59 - "can test two conditions, short and open." If there is a short, doesn't it matter which way you measure in diode mode? It's a short, wont matter which probe on ground?
That is correct a short will read short either way, the point is that when you measurw with red probe on ground you can figure out if the IO pin is normal [diode voltage drop], disconnected or short. So actually 3 results with single measurement.
Thank You that show how make a beep on diod mode with lab multimetr!
Thank you sir. Keep those small tricks coming. Wish you a happy new year. :)
Beautiful explain about diode mode testing...
What is brand & series expensive multimeter do you have?
GW Instek GDM-9061
Some ppl think by doing this they are measuring impedance
1:47-1:59 - "can test two conditions, short and open."
If there is a short, doesn't it matter which way you measure in diode mode? It's a short, wont matter which probe on ground?
That is correct a short will read short either way, the point is that when you measurw with red probe on ground you can figure out if the IO pin is normal [diode voltage drop], disconnected or short. So actually 3 results with single measurement.