Laser project

Male/Male Jumper Wires

Pushbutton switch 12mm

Arduino IDE

Laser Diode, 655 nm

Arduino UNO

Breadboard (generic)

A laser is useful for many things: to play with the cat, security systems and so on, but do we know how to build one? This time I will teach you how to build a simple and very easy to make laser.AssembledThe assembly consists of two parts, the first is the installation of the laser that we will connect it to 5v (one cable to a row and the other in the same) and gnd we connect it in the same way and signal to pin 13<figure><img src=https://projects.arduinocontent.cc/92b5586b-6822-4700-834e-09744c14bed3.png /><figcaption> </figcaption></figure>and the second part is to install the buttons to row 5v, to row gnd with a resistance of 10 kΩ and to signal the left to pin 12 and the right to pin 11.<figure><img src=https://projects.arduinocontent.cc/5cf33208-6fb1-47c0-a227-ecd5773d8015.png /><figcaption> </figcaption></figure>The codeWe will now move to the programming phase in which we will start with the variables that I show below:<pre ><code >int offbtn = 11; //the off button int onbtn = 12; //the on button int laser = 13; //the laser pin </code></pre>in the void setup we define inputs and outputs<pre ><code >void setup() { // inputs pinMode(offbtn, INPUT); pinMode(onbtn, INPUT); // and outputs pinMode(laser, OUTPUT); } </code></pre>and in the void loop we write what we want to do<pre ><code >void loop() { // The first part is for you to turn on and the second for you to turn off. if (digitalRead(onbtn)==HIGH){ digitalWrite(laser, HIGH); } if (digitalRead(offbtn)==HIGH){ digitalWrite(laser, LOW); } } </code></pre>so it works:<a href="https://media.giphy.com/media/mNNJfIT5oePcuazCh8/giphy.gif">https://media.giphy.com/media/mNNJfIT5oePcuazCh8/giphy.gif</a>see you on another project.

Laser project

Learn how to make a simple laser