Skip to main content

LED Lighting with Potentiometer

 We will make this application in the Mblock program. Before moving on to the codes, the list of materials to be needed in our potentiometer and led burning circuit:

 1-Arduino Uno

2-BreadBoard

3-1 pcs LED

4-1 pcs 220Ω Resistor

5-Jumper Cables

6-Potentiometer

We need these supplies.

 

We add 220 ohm resistors to the long leg of the Led, which we added to our breadboard. We connect one leg of the resistor with a jumper cable to digital pin 8 in our ardunio uno material. We connect the short leg of the LED to the GND (negative) terminal of the Ardunio Uno with a jumper cable. The potentiometer has 3 legs. We connect the middle leg to the Analog pins with a cable. I connected it to analog pin A0. We connect the leg on the protruding part of the potentiometer with a 5V cable. We connect it to GND with the other leg. The circuit diagram is given below.

LED Lighting with Potentiometer


Code part;

In the Mblock program, we add the Arduino program starter code from the Robots menu. After adding the repeat code continuously from the control menu, we add the code to whichever digital pin we connected our led to from the "Robots menu ... If it is not, we check it with the command.If the value of the potentiometer on the A0 pin is less than 512, set pin 8 high and turn on our led (if it is, we add the green code in the operations menu and the other code in the robots menu) If the value is greater than 512, our led will turn on. In order for us to run these codes, we connect our arduino board and circuit to the computer with a usb cable, first we select the Serial port from the Connect menu, let's choose the port to which our arduino board is connected from there. Arduino Uno from the cards menu (or choose which board you are using) After selecting, Edit Select the Arduino mode from the menu and press the Upload to Arduino button, we will send the codes we have written to our Arduino board. Thus, our program becomes ready to run.

To download the source code of the program CLICK HERE


Similar Topics

For All Scratch Examples CLICK HERE

For Mblock With Arduino Examples CLICK HERE

Comments

Popular posts from this blog

Pacman Game on Scratch Program

 We will make an example of pacman game making with Scratch. Before starting the Pacman Game example that we will do with Scratch, we download the background for the pacman game from the internet and add it to the backdrop part in Scratch. When the background I downloaded was dark, I painted the dark colors with white. I made the borders thicker. After adding our background to our work, it came to creating the pacman character. I drew a full circle in yellow for the Pacman character. After that, I drew two lines towards the center using the line tool. I erased the remaining part with an eraser. If you want, you can use the erase background tool to erase between two black lines. Thus, our pacman character took his place with his mouth open. I created a guide dot right in front of the pacman character. This will keep us moving. I created a red dot. It's a little obvious, you can make this red dot smaller if you want, you can give it another color and make it more invisible. After cre...

How To Make Bubble Shooter Game on Scratch Program

 We will make a bubble shooter game example with Scratch. I am adding 3 balloons and a target picture for the bubble shooter game we will make with Scratch. (You can increase the number of balloons). Now I come to the codes to be written inside balloon1. Let the number of balloons popped when the green flag is clicked is 0. Thus, the remaining numbers from the previous game are reset. Let the balloons be hidden at first. Then, it will appear in a random place between the coordinates we have determined at a random time between 1-5 seconds, wait for 2 seconds, then hide. X: The coordinates between -218/144 are the coordinates of the far left and the right of the screen, Y:134/-235 are the coordinates of the top and bottom of the screen. It will appear randomly in these ranges If our balloon is aimed and hit by the target; Balloon shot news is released. When this news reaches our balloon, the balloon will be hidden. Copy and paste the same code above.   Then we say duplicate...

How to Make Countdown a Maze Game on Scratch

  We will make a countdown maze game example with Scratch. For the countdown maze game example we will make with Scratch, we upload the maze picture we downloaded to our computer from the scene section to the scratch program. Then we select the object that we will move in the maze section from the choose a sprite section and add it to our scene. We bring the object to be moved to the red point, which is the starting point. First of all, we create a variable named Duration to calculate the elapsed time in the maze from the "Variables" menu When you click the green flag, set the duration variable to 40. Our goal is to get the ball to the finish line in 40 seconds. If our ball object to move, we give the x and y coordinates to go to the red starting point. Our object will not move only once. First of all, we add the "Forever" code from the "Control" menu so that it moves every time we press the arrow key. Now it's time to check which direction key is pres...