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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

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