Project #14: Components – Laser Pointer – Mk22

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#DonLucElectronics #DonLuc #LaserPointer #Arduino #EEPROM #Display #Elecrow #Project #Patreon #Electronics #Microcontrollers #IoT #Fritzing #Programming #Consultant

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Laser Pointer

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Laser Pointer

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Laser Pointer

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Crowtail – Laser Pointer 2.0

A change of Laser Pointer is that we make it compatible with Crowtail base board, you can use it more easier than before. This laser pointer or laser pen is a small handheld device with a laser diode emitting a very narrow coherent low-powered laser beam of visible light, it is frequently used in lecture halls and demonstrations to point at topics of interest on a presentation board. In a school setting, they have become ubiquitous, and they are very useful teaching aids. Please note that DO NOT Point this module to eyes directly, It may cause some blindness, glare and afterimages. Application Idea: Pointing, Industrial and research use, Leisure and entertainment, Etc…

Features

  • Supply voltage: 5 Volt
  • Power: 5mW
  • Wavelength: 650nm

DL2507Mk02

1 x Crowduino Uno – SD
1 x Crowtail – Base Shield
1 x Crowtail – I2C LCD
1 x Crowtail – Laser Pointer 2.0
1 x Crowtail – Switch
1 x Crowtail – LED(Green)
1 x USB Battery Pack
1 x USB Mini-B Cable

Crowduino Uno – SD

SCL – A5
SDA – A4
SWI – 4
LAS – 5
LED – 6
VIN – +5V
GND – GND

DL2507Mk02p

DL2507Mk02p.ino

/****** Don Luc Electronics © ******
Software Version Information
Project #14: Components - Laser Pointer - Mk22
DL2507Mk02p.ino
DL2507Mk02
1 x Crowduino Uno - SD
1 x Crowtail - Base Shield
1 x Crowtail - I2C LCD
1 x Crowtail - Laser Pointer 2.0
1 x Crowtail - Switch
1 x Crowtail - LED(Green)
1 x USB Battery Pack
1 x USB Mini-B Cable
*/

// Include the Library Code
// EEPROM library to read and write EEPROM with unique ID for unit
#include <EEPROM.h>
// Wire
#include <Wire.h>
// Liquid Crystal
#include "LiquidCrystal.h"

// Laser Pointer
int iLaserPointer = 5;

// Switch
int iSwitch = 4;
String sO = "";

// Liquid Crystal
// Connect via i2c
LiquidCrystal lcd(0);

// LED Green
int iLEDGreen = 6;

// EEPROM Unique ID Information
String uid = "";

// Software Version Information
String sver = "14-22";

void loop() {

  // Laser
  isLaser();

  // Display Laser
  isDisplayLaser();

  // Delay
  delay( 100 );

}

getDisplay.ino

// getDisplay
// Crowbits - OLED 128X64 UID
// Display UID
void isDisplayUID(){

  // Set up the LCD's number of rows and columns: 
  lcd.begin(16, 2);
  // Print a message to the LCD.
  // Cursor
  lcd.setCursor(0, 0);
  lcd.print("Don Luc Electron");
  // Cursor
  lcd.setCursor(0, 1);
  // Print a message to the LCD.
  lcd.print( sver );

}
// Display Laser
void isDisplayLaser(){

  // Clear
  lcd.clear();
  // Set the cursor to column 0, line 0
  lcd.setCursor(0, 0);
  lcd.print( "Laser" );
  // Set the cursor to column 0, line 1
  lcd.setCursor(0, 1);
  lcd.print( sO );
  
}

getEEPROM.ino

// EEPROM
// isUID EEPROM Unique ID
void isUID() {
  
  // Is Unit ID
  uid = "";
  for (int x = 0; x < 7; x++)
  {
    uid = uid + char(EEPROM.read(x));
  }
  
}

getLaser.ino

// Laser
// is Laser
void isLaser(){

 // Switch
 if(digitalRead(iSwitch)){
  
  // Laser Pointer
  digitalWrite(iLaserPointer, HIGH);
  // LED Green
  digitalWrite(iLEDGreen, HIGH);
  // On
  sO = "On";
  
 }
 else{

  // Laser Pointer
  digitalWrite(iLaserPointer, LOW);
  // LED Green
  digitalWrite(iLEDGreen, LOW);
  // Off
  sO = "Off";

 }

}

setup.ino

// Setup
void setup()
{
 
  // Delay
  delay(100);
  
  // isUID EEPROM Unique ID
  isUID();
  
  // Delay
  delay(100);

  // Initialize the LED Green
  pinMode(iLEDGreen, OUTPUT);

  // Delay
  delay(100);

  // Laser Pointer
  pinMode(iLaserPointer, OUTPUT); 

  // Delay
  delay( 100 );

  // Switch
  pinMode(iSwitch, OUTPUT);

  // Delay
  delay( 100 );

  // Display UID
  isDisplayUID();
  
  // Delay 10 Second
  delay( 5000 );

}

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People can contact us: https://www.donluc.com/?page_id=1927

Electronics, IoT, Teacher, Instructor, R&D and Consulting

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