Nixie Tube Speedometer

Displaying the speed of your bicycle on IN-14 Nixie tubes

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Description

I had no speedometer, so i build this.

A reed-switch indicates one turn of the front wheel. With exact timing the speed in km per hour is obtained.

Now its running on a single cell LiPo, but i want to let it run an dynamo soon.

A Proper mounting for the case is in work.