gear position indicator

I am trying to add a GPI on my bike with a 7-segment display, for which I will use a microcontroller to decode the GPI signal and display it to a digit 7-segment display. I am doing this DIY because I can buy those things in India. The market is non-existent here and importing items from US/UK...

In my spare time, which seems to be never anymore, I've been working on a DIY project using a SparkFun MicroView. Seeing the Gen I's didn't have a indicator and I can't justify $100+ to by one, I thought I would put my electronic and software knowledge to good personal use. I picked up the...