26 yo second time around(52!) male living in Adelaide, South Australia, Australia.
I can build most simple electrical circuits but have no idea about programming anything, so now is as good a time as any to try and learn a new set skills.
My first project has been buzzing around inside my head since 2009, and I seriously need to set it free!
It is 28 bicycle gear position indicator, using Arduino and LED display.
Gears are indicated by 4 PNP NO proximity sensors (A B C D) on the front gears, and 7 PNP NO proximity sensors (1 2 3 4 5 6 7) on the rear gears. G1 = A1, G7 = A7, G8 = B1, G15 = B7 etc
Once I get the gear indicator working, I then want to use the gearing co-efficients associated with those gears, to be able to calculate the cadence of the front gears, and KPH off the rear wheels.

BUT baby steps first!

To assist in finding the important bits;

Comment 20 & 22:- 28 position Gear Indicator.xodball
Bike gears.xodball
bike gears with motor.xodball

Comment 26:- explanation of above xodball

Comment 55:- Linear Servo Motor link

Comment 77:- Linear Servo Positions

Comment 92:- Electronic Gear Changing

Comment 119:- LTP for Down Under F-RQ.xodball (Left Thumb Pad)

Comment 131:- LTP & RTP for F-RQ (Right Thumb Pad)