Make an “analog” bike speedometer with Arduino

Arduino TeamMarch 8th, 2017

As Maker Alex Gyver points out in his video, Chinese bike computers are quite cheap, but “why not?” It’s a great question, and one that motivates many of the hacks seen here, including his mountain bike speedometer.

Although he could have simply used a numerical display to show how fast his bike was going, he instead employed a small servo to point to the speed like an analog gauge. The custom speedometer is based on an Arduino Nano, and wheel revolutions are measured by a magnet and Hall effect sensor.

This may seem like a silly project, but if you need to take a very short glance at something, analog gauges tend to be much easier to read than digital. Perhaps this concept could be quite useful! You can see exactly how to make this hack on Instructables and in his video here with a few action shots. Code can be found on GitHub if you’d like to check that out as well!

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