Techinc Wheel/Old

Backup of earlier stuff

This info was initially on the Techinc wheel project page

For the wheel

12V RGB LED strip (needs extra stuff to make it addressable)
60 WS2811 chips
Arduino (diecisomething and a nano)
12V adapter
capacitor and resistor smd set for about 20 rgb-led-sets - ordered on 28-12-2013

Test stuff

Lesson 1: the 12V LEDs are not addressable

And now what?

Cut current strip to even smaller pieces and use WS2801's or WS2811's for every pixel you want to address. Or, use the current set-up in another project (space lighting or something like that, where you just have one colour for the entire thing, e.g. in combination with this color sensor, in house)
We also have RGB LEDs (5mm). Build one small board for every pixel. Takes a long time, but might be fun. (needs: WS2811/WS2801 chips, resistors, board)
Use *addressable* RGB LEDs (WS2801 or WS2811). This is the easiest way to make it work. I currently have 30 LEDs of the WS2811 type at home. Maybe use these.

We are going to use the 12V LED strip with the WS2811 chips, and make pcb's for that

Learn how to make a PCB design, make a pcb according to the example in the datasheet

PCB for connecting a 5mm RGB LED or a 12V RGB LED strip (layout is the same, only the resistor values are different, and the connector pads/holes)

- schematic of the PCB is done (git)
- to do: draw footprints for the data connectors and for the RGB LED connections
- to do: make layout for the PCB
- etch a prototype
- order definitive pcb

Random ideas

~~Make something that registers when the wheel is turned~~
~~Let it control X when the wheel is turned (don't know what "X" should be, ideas are welcome)~~
~~No function, just let it rotate~~
For now: no rotation
- ~~Rotation: full color SpokePOV (PimpMyBike blog)~~ - based on comments: maybe not such a good idea, since wheel has to spin fast