DIY Tachometer (RPM Meter)

In this project I will show you how a 3€ IR distance sensor works and how we can use it to build a proper DIY tachometer that functions properly. Let's get started!

Make sure to watch the video. It gives you all the information you need to create your own DIY tachometer. But during the next steps I will present you some additional information.

Here you can find a parts list with example seller (affiliate links):

1x Arduino Pro Mini: https://s.click.aliexpress.com/e/_dTWuuYz

1x IR Distance Sensor: https://s.click.aliexpress.com/e/_dXlui7F

1x 128x64 OLED: https://s.click.aliexpress.com/e/_dXOYM8H

1x TP4056 Charge Protect Board: https://s.click.aliexpress.com/e/_d697XPJ

1x LiPo Battery: https://s.click.aliexpress.com/e/_dUE2A0V

1x Toggle Switch: https://s.click.aliexpress.com/e/_dZ19w21

Here you can find the schematic with reference pictures of my finished board design. Use them to create your own!

Here you can find the code for the project. Upload it through an FTDI breakout board. Also make sure to include this library:

https://github.com/olikraus/u8g2

Also make sure that you use the following board settings: Arduino Pro Mini 3.3V 8MHz

You did it! You just created a your own DIY Tachometer!

Feel free to check out my YouTube channel for more awesome projects: https://www.youtube.com/user/greatscottlab

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