Activity 1: Servo Sweep

In this activity, we will continually make the servo’s shaft rotate its angle by 10 degrees in both directions.

Let’s get started!

1. Open PictoBlox and create a New File.
2. Select the coding environment as Block Coding.
3. Go to the Events palette and add the when green flag clicked block into the scripting area.
4.  Next, go to the Variables palette and create a variable named Angle.
5.  Then, place the set() to () block. From the dropdown, select the Angle variable and set the value as 0. We are initializing our servo to start from a 0 angle by adding this block.
   
6. Now drag and drop the forever block from the Control palette.
7. As we want to repeat the steps, put a repeat() block from the Events palette inside the forever block. Set the value as 18.
   
8. After that, to change the shaft’s angle, place the change () by () block from the Variable palette inside the repeat () block.
9.  From the dropdown, select the Angle variable and set its value as 10 so that it can change the angle by 10 degrees.
10. Now, add the set servo on () to () angle block. Next, put the Angle variable into this block.
11. Next, add 0.1 seconds of delay for stability with the help of the wait block below.
    
12. Lastly, duplicate this entire repeat block and put it right next. Change the value of the Angle variable in the change() by() block to -10. This repeat block will allow the shaft to rotate in the opposite direction.
    
13. Save the file with the name Activity- Servo Sweep.

Our script is now ready to run!

Testing

As you can observe here, the servo shaft is moving in both directions repeatedly with a change of 10 degrees.

Assignment

Before you move on to the next lesson, a small assignment awaits you!

You must upload the PictoBlox program you created in this activity to the website. Submitting the assignment is a must in order to receive the certificate after completing the course.

Follow the steps below to upload your assignment:

1. Click on Browse.
2. Search and Select your saved Project file(.sb3) and Click Open.
3. Click on Upload to submit the assignment.

The file type allowed is the SB3 file generated from the PictoBlox program. The maximum file size allowed is 5 MB.

Good luck!