Arrow 2 bike light - as promised I deliver you battery powered version. Unlike the first ebike version this one can be mounted on any bike. You can charge it from phone charger or computer, battery last for about 8 hours.
!!! This project require basic soldering skills.
1x - charging board TP4056
1x - battery 18650
1x - red 5V led strip 140mm long
1x - mini toggle switch SPST with waterproof cover
- some cables for connecting components
- hot glue, epoxy glue
You can find ebike version of this light here:
Please don't forget to like !
Print main body horizontally and tilt 15 degree back.
I been working on this design for a while, my inspiration was various car lights I saw on the road while cycling I can't recall which one it was :)
This is 5th generation of lights:
Print position - tilt model 15 degree to it's back.
Prepare charging board - solder wires, 2 positive and 2 negative
Slide board all the way down and plug unpowered charging cable (help yourself with tweezer or screwdriver), fill board with hot glue.
Prepare battery - file down both ends (ruff surface helps with soldering)
Solder negative battery input cabe.
Fit battery with negative facing down.
Solder positive output to switch
Fit positive and negative output cables through holes. !!! Before soldering positive battery input solder LED strip to avoid short circuit:
Solder wires to led strip. Now solder battery input and glue lid with epoxy.