I have an Esk8 that I didn't want to permanently mount a voltmeter in because space was tight and I didn't want to cut on the CF enclosure more than necessary. So I came up with a Pocket Voltmeter with Pass-Through charging port.
This allows you to plug into the cahrge port on your Esk8 (or wahtever) and see the voltage plus you can then plug your charger into the pass-through port to monitor charging.
This is what you need as far as parts.
5.5 x2.1mm DC Power Socket
https://www.ebay.com/itm/111889160001?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
5.5*2.1mm Male DC Pigtail
https://www.ebay.com/itm/Lot-10x-5-5-2-1mm-Male-DC-Power-Plug-Connector-CCTV-PSU-Pigtail-CABLE-Jack-12V/272112575742?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649
You solder the leasds to the voltmeter to 2 wires, 1 side goes to the socket (pass-through cahrger port) and the other side goes to the pigtail (connects to the charge port of your Esk8). I forgot to takes pics of the internal wireing, but I'll do that on the next one I build and post those pics.
The model is slotted for M2 screws, but being such small holes and witht eh shrinkage inherant with 3d printed models, I had to drill them out. I ended up using epoxy to fix the socket and pigtail in place, plus some on the inside walls to keep the 2 pieces locked together. I used hotglue to secure the voltmeter in the top of the case.
I may redesign this in the futre to use m3 screws a cap for the voltmeter. This would make easy to disassemble, but will also make it signifigantly larger. Let me know if your interested I'll get it done.
| voltmeter_extension_-_top.STL | 186.3KB | |
| voltmeter_extension_bottom.STL | 300.1KB |
