How to Build a LASER TACHOMETER

############################# Video Source: www.youtube.com/watch?v=0UqHNrqmTRU

In this project, I am showing you how to build a digital laser tachometer based on Arduino for around 10$. If you need to measure rotational speed, you can just buy it or do it yourself and learn something while building it! • 📌 Used parts: • Arduino Nano: • https://www.ebay.com/itm/MINI-USB-Nan... • 128 x 32’’ I2C OLED Display: • • https://www.ebay.com/itm/1pcs-0-91-12... • Tactile Push Button (6x6x7mm): • https://www.ebay.com/itm/2-Pin-Moment... • Battery connector: • https://www.ebay.com/itm/10-Pcs-Snap-... • Laser emitter: • https://www.ebay.com/itm/650nm-6mm-5V... • Laser sensor: • https://www.ebay.com/itm/Laser-Sensor... • M2x6mm Screws: • https://www.ebay.com/itm/50PCS-M2X6mm... • 📌 Other: • • 3D File: • https://www.thingiverse.com/Elite_Wor... • Code: • https://github.com/EliteWorm/Tachomet... • Third party used libraries: • https://github.com/adafruit/Adafruit_... • https://github.com/adafruit/Adafruit-... • Electronic connections: • 128 x 32’’ I2C OLED Display to Arduino Nano as follows: • GND to GND • VCC to 5V • SCK to A5 • SDA to A4 • 9V Battery to Arduino Nano as follows: • Negative (black) to GND • Positive (red) to Push Button Pin 1 and Push Button Pin 2 to VIN • Laser Diode to Laser Sensor Module as follows: • Positive (red) to VCC • Negative (blue) to GND • Laser Sensor Module to Arduino Nano as follows: • VCC to 5V • GND to GND • OUT to D2 • ► Music Credit: Dj Quads • Track Name: It's Near • Track Name: Dreams • Music by Dj Quads @ / aka-dj-quads • • Official DJ QUads YouTube channel HERE: https://www.youtube.com/channel/UCusF... • • DJ QUads Twitter HERE: / djquads • • DJ QUads Spotify HERE: https://open.spotify.com/artist/2VZrd... • • DJ QUads Instagram HERE: / djquads • • Original upload HERE - https://www.youtube.com/watch?v=G5mRT... • • Music promoted by NCM: https://goo.gl/fh3rEJ • #3dprinting #arduino #diy

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