Voltmeter on the LM3914 from a watch from a vaz 2106

The voltmeter on the LM3914 microchip takes the watch and vaz 2106 case as the case

Here are such watches

Based on the integrated circuit LM3914, it is possible to design various LED indicators with a linear scale. The basis of the LM3914 is 10 comparators.

Here we will collect according to this scheme

To start, we take apart the clock, we remove all the insides

In the program, sprint layout made two boards, one for placing parts, the second for LEDs.

For LEDs

For the main board

Putting it all together and inserting LEDs

That's what it should be

I also bought this voltmeter to insert into the center

Next, insert into the body, the glass must first be tinted

In detail about the assembly on the video, who liked it and would like to assemble:



All files for the assembly can be downloaded from the link:

voltmetr.zip [38.01 Kb] (downloads: 219)