Introduction: 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!
Step 1: Watch the Video!
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.
Step 2: Order the Components!
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
Step 3: Create the Circuit!
Here you can find the schematic with reference pictures of my finished board design. Use them to create your own!
Step 4: Upload the Code!
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
Attachments
Step 5: Success!
You did it! You just created a your own DIY Tachometer!
Feel free to check out my YouTube channel for more awesome projects: http://www.youtube.com/user/greatscottlab
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