FrankI was able to build up a working Y-cable from the JST connectors and a short piece of two-core wire, I recommend a slightly smaller gauge than what I used as it was a squeeze to fit the bridging wire AND the Heltec V3 battery connector wire into the same crimp!
BOM for the y-cable:
- Short length of two-core wire 28awg recommended?
- A JST connector pair - male+female and pins/sockets to match
- Heltec battery connector and wire assembly
Tools needed
- Wire stripper (may be ok with careful knife work
- Crimping tool
- Exacto/Stanley knife for cutting back the insulation
It was fairly easy to do with a crimping tool and a wire stripper. Care had to be given to ensure that pins had the correct orientation and that the polarities were also correct. As you can see my Heltec V3 powered up first go, indicating that I had adequate electrical connection and correct polarity, that said I'm yet to test out the charging circuit from the solar panel, I'll hopefully be able to try that tomorrow as I've also designed a quick first version of the battery cover replacement!
Housing design
The first version of the battery cover housing has been designed roughly and hopefully I can fit everything in and get a good seal onto the solar light case.
Discussions
Become a Hackaday.io Member
Create an account to leave a comment. Already have an account? Log In.