Rev 4... >.>

A project log for Digital Speedometer

A new digital dash to replace the slow inaccurate one on my cheap Chinese bike

mangus-tiranusMangus Tiranus 11/29/2016 at 23:390 Comments

As you could see in my last video... Rev 3 didnt go too well. The leds were failing fast...

So I decided to go ahead with the through hole led approach... Trouble is they dont make 3mm domed addressable leds... The smallest addressable leds I could find were 5mm domed. But theyre too big to fit 40 leds in the array.

I can however fit 5mm rectangle leds, but their are no addressable rectangle ones.

If anyone knows where i can find some please let me know as it would save me a whole lot of trouble.

Anyway i now have 5 mm rectangle RGB leds driven by individual ws2811 chips.

I have designed and built the array to be modular and bolt on both sides of the main control board.

This should last the whole prototyping stage now.

I also cut these boards out so theyre more like the final design.

Im still waiting for the controller chips to turn up then I can solder everything on.

i was going to update once I did that but i wanted to put something up on here as i've been a little quiet on here for a few weeks.