Shop Tips - Bread Board Voltmeter

RE: Shop Tips - Bread Board Voltmeter

DAB — Thu, 05 Nov 2015 20:18:15 GMT

Nice idea John.

You could also add an ampmeter to measure the current draw of each circuit.

DAB

RE: Shop Tips - Bread Board Voltmeter

Problemchild — Thu, 05 Nov 2015 18:14:53 GMT

This would look really good if you had to do a Lecture or teach any one the workings of a circuit.

Those OLED mini scopes would be good for this also !

RE: Shop Tips - Bread Board Voltmeter

dougw — Thu, 05 Nov 2015 16:42:37 GMT

Cute idea.

You can get very similar modules with 3 wires, allowing the power to be separate from the signal, so you can measure from 0 to 100 volts.

Doug

RE: Shop Tips - Bread Board Voltmeter

Problemchild — Thu, 05 Nov 2015 09:29:38 GMT

Good one John, I've started doing the same thing after I saw someone doing a demo at a meeting doing the same thing.

He was using it to remind himself that it was 5V not 3.3V to prevent him blowing the 3.3V chips .

Personally I think it will be even better in situations where you are showing an experiment with several voltages and currents and then you can demonstrate all test points at once rather than individually with an expensive meter.

RE: Shop Tips - Bread Board Voltmeter

mcb1 — Thu, 05 Nov 2015 09:22:07 GMT

Excellent idea.

I have some of these up at the Ski field to show the voltage ...no more surprises now when the alternator isn't working.\

I intend to put one on the battery in the caravan but I'll be adding a pushbutton since I really don't need a constant 20mA load.

Mark