Laser Tachometer Based on Arduino

This is my design of a Laser Tachometer based on Arduino.

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Description

This is my design of a Laser Tachometer based on Arduino.

Print settings:

Material: PLA
Layer height: 0.20um

Materials and methods

📌 Used parts:

Arduino Nano:

https://www.ebay.com/itm/MINI-USB-Nano-V3-0-ATmega328P-CH340G-5V-16M-Micro-controller-Board-Arduino/263028181552?hash=item3d3db38a30:m:mEdYzNzkjui_b1LT1jFlvUA

128 x 32’’ I2C OLED Display:

https://www.ebay.com/itm/1pcs-0-91-128x32-IIC-I2C-OLED-LCD-Display-DIY-Module-DC3-3V-5V-For-PIC-Arduino/183447406048?hash=item2ab65145e0%3Am%3AmMxose4lr_WvUOaZBpEgB-Q&LH_BIN=1

Tactile Push Button (6x6x7mm):

https://www.ebay.com/itm/2-Pin-Momentary-Tactile-Tact-Push-Button-Switch-Black-6x6x4-3mm-7mm-Miniature/183251999404?hash=item2aaaab9aac:m:m40riuiMesI0w5neIvrkrPQ

Battery connector:

https://www.ebay.com/itm/10-Pcs-Snap-9V-9-Volt-Battery-Clip-Connector-I-Type-Black-w-Cable-Black/122813228347?hash=item1c983d253b%3Ag%3AZfUAAOSwDrNZS16w&LH_BIN=1

Laser emitter:

https://www.ebay.com/itm/650nm-6mm-5V-5mW-mini-Laser-Dot-Diode-Module-Copper-X6B2-SAL-Dot-Red-Head-K-K2X9/264416958362?hash=item3d907a979a:g:sjAAAOSwRn5dQ0Sx

Laser sensor:

https://www.ebay.com/itm/Laser-Sensor-Module-non-modulator-Tube-Laser-Receiver-Module-DIY-For-arduino-WF/372880764757?hash=item56d16cef55:g:DJUAAOSwmxVdnvDY

M2x6mm Screws:

https://www.ebay.com/itm/50PCS-M2X6mm-Screws-Stainless-Steel-Round-Head-Plain-End-Metric-Machine/401255438898?hash=item5d6cb01a32:g:MWwAAOSwopRYb-h6

📌 Other:

3D File:

https://www.thingiverse.com/Elite_Worm/about

Code:

https://github.com/EliteWorm/Tachometer/blob/master/Laser_Tachometer_V1_0_0.ino

Third party used libraries:

https://github.com/adafruit/Adafruit_SSD1306
https://github.com/adafruit/Adafruit-GFX-Library

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

Documents

Issues

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Comments

7af328e4b4f48791483cd9a5892925e5?default=blank&size=40Bradley Vermaak added this to the Tools collection ago
C95802dea98613ba097d74098a07b459?default=blank&size=40Александр Вишняков added this to the делать collection ago
Mini green mox logomoXDesign added this to the Interesting collection ago
Mini elite worm white background v2Elite Worm published this design ago