It has been a few years since I created the first Arduino speedometer and during that time I have improved my Arduino coding a lot as well as now having a 3D printer so I think its time to make some improvements.
The internals are now custom 3D printed that I designed to hold the stepper motor, Arduino and the addition of a driver board to make interfacing with the steppers easier.
I designed the holder to mount using the standard speedo holes. This new design eliminates the need to hack your old speedo up with a dremel. In theory you could remove the standard parts and fit mine without any modifications to the speedo.
What it looks like fitted
I have still got to overhaul the Arduino code in the coming weeks. Once it is done I will upload on this website along with updated schematics.
Thanks for reading