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Volt meter project

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exvalvesetdabbler:
Assembly Time

The module was first calibrated to account for the voltage drop between the battery and the switched live in the head lamp shell.  Ideally one should run a separate wire from the battery through a fuse and relay that follows the switched live.  The voltage drop between the battery and the module will be minimal and more accurately follow the battery voltage under all load conditions.  For now I have calibrated the module to read right with normal running without headlight.  There is a small potentiometer on the module for calibration.

The LED module was glued into the housing with RTV silicone and allowed to set over night. The original wires dropped off early on when test fitting a few times so I replaced them with something more flexible and matching the bikes electrical colour scheme. They are also anchored with a blob of hot melt adhesive.

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Drop cable from the headlight shell attached to the terminal board.  The wires were salvaged from an old clutch switch.

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Wires from module soldered to terminal board
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The mounting holes in the bracket are slotted to allow some adjustment of the alignment.
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It was then just a case of screwing it all together after placing a smear of silicone on the faces of the top and bottom parts.

Regards
Dave

exvalvesetdabbler:
Test fit.

Assembled Volt Meter
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Fitting.
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Here's a walk round video.  Its a tight squeeze and hopefully it will blend into the background, well at least until it lights up any way.
https://www.youtube.com/shorts/KdYEToTqvYA?feature=share

I know,  my battery is rubbish.......

Regards
Dave

 

Johnny4428:
Nice job Dave, blends in lovely. I’d buy one but judging by the amount of work involved I probably wouldn’t be able to afford it.😜

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