Introduction: Pocket Volt Meter

By help me on patreon (click here)
About: I like to build some cool stuf

I have been using a bigger version of this voltmeter for quite some time and it was always very helpful

so when I saw Pocket Sized Contest I said to my self why didn't use this opportunity and share this with you

I made a few design improvements during this process so I am very happy with results

Step 1: Materials and Tools

parts:

tools:

  • soldering iron
  • hot glue gun
  • hot air gun or flame from hob (if you using heat shrink foil)

Step 2: Switch

  • disconnect all wires and find the best position for the switch
  • if you have a good position you can glue switch on the place
  • then connect (+) power to middle pin on the switch

Step 3: Probes

  • connect a wire to crocodile clips and secure it with hot glue
  • then connect black (-) probe to common ground and red (+) probe to pin where was orriginaly yellow or white wire

Step 4: Battery Connector

  • pick a place where you want your voltmeter and cut them to the needed length

(I made this second to sit on the connector so they were werry short)

  • connect the red wire to switch pin and black to common ground

Step 5: Test

  • test it and if everything works you can adjust accuracy if needed with little potentiometer (not every voltmeter have this option)
  • if you are done glue every wire to secure long life and glue the whole potentiometer on its place
  • you can wrap finished voltmeter in heat-shrink foil if you want for better-looking finish

Step 6:

and you are done you can now put your mini voltmeter into your pocket and have it wherever you go ready to use

enjoy :)