Simple DC A-meter

I got idea when I was doing something with DC motors. I wanted to check the current but I was beginning to get angry on digital instrument. So I created DC A-meter that can measure up to 5 A.

This A-meter is very simple. The question is if it can be useful at all? YES! Most cheap digital instruments must not be connected more than 10s in the circuit when we are measuring more than 1 A, but this kind of instrument can be.

All the materials are scraps from other projects (including A-meter).

Spends: 0$
Used-up time: 1 hour

Step 1: Parts in tools

Parts used for A-meter:
- Analogue DC A-meter
- 1x black connector
- 1x red connector
- 2x cable boots
- housing

Tools used in process:
- Pen
- Driller
- Saw
- Pliers
- Knife
- 2 mm and 8 mm drill

Comments

[Phil B]

Have you given any thought to adding resistor shunts for reading the current draw on other applications? I know that would require working out the calibrations for various shunt resistances.

[vonPongrac]

That is actualy a good idea! I never tought of that. I think calibrations will be less of a problem if I use mu*tisim or other simulator. But for now this instrument is working great. :)

[Phil B]

When I commented I realized you had a specific application and it was already within the ranger of your current meter display. Thank you.