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Vassilis Papanikolaou has made a nice Motorcycle Universal Gear Indicator Circuit which allows you to easily see what gear you are in. I am now curious how my first motorcycle indicated the current gear, there was a single 7 segment display between the speedometer and tachometer. I am guessing that it was probably all mechanical but who knows, it might have been this complex! Thanks sending it in Vassilis. “The main circuit is based on an AVR ATTINY25/45/85 microcontroller, which reads the signals of the two Hall sensors and the neutral switch and outputs the current gear number to a 7-segment LED indicator, through a 4026 counter/decoder.” |
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June 5th, 2010
Thanks a lot for the post Alan ! Really appreciate
July 21st, 2011
Hi
has anyone built this?
I have tried but it only works on the DOWN hall IC and
it remembers the last selected gear
changed ATtiny and the Hall IC’s, still
the same !!
July 23rd, 2011
Hi again
just to let you know it now WORKS
fault was mine , faulty soldering by ME
now to the next step fiting it.
great piece of kit.
many thanks
cyril