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Are you bored of the old clunky measuring tape with which you can’t even measure the circumference of any cylindrical object nor it converts the units and also it has a restricted length which can be measured with it. So in this Instructables with the help for few blocks of code and some 3D printed parts we will try to make a digital measuring roller which will overcome all these issues.
Upcoming steps will show the working principle and explanation of the code used if you are eager to build the device then you can skip down to step number 8 for build instructions.

1 x Micro Bit
1 x Micro Bit Breadboard Adapter
2 x AAA Battery
1 x M3/M2.5 Bolt
4 x 2mm Screws
1 x 623 Bearing(3mm x 10mm x 4mm)
1 x Rotary Encoder
2 x 10k Ohm Resistor
10 x O-Rings(~15mm Inner Diameter)
Access to a 3D Printer”

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