Intermediate

Draw a random number on the chart on every turn of the loop. This tutorial is part of the Nairda learning path. You can build it step by step inside the app, which checks every block you place before letting you move on. The steps We add a While loop, which repeats forever. We create a number variable called number. Inside the loop we wait 500 milliseconds. Behind it we set number to a random value from 0 to 100. On the dashboard we draw a chart and give it the variable number. When you finish, the app takes you straight to the next tutorial in the path. ...

Control the brightness of a led from the dashboard with a slider. This tutorial is part of the Nairda learning path. You can build it step by step inside the app, which checks every block you place before letting you move on. The steps We add a While loop, which repeats forever. We create a number variable called brightness. We declare a led on pin 13. Inside the loop we put a delay of 100 milliseconds. Behind it we put the led and give it the variable brightness. On the dashboard we put a slider and give it the variable brightness. When you finish, the app takes you straight to the next tutorial in the path. ...

Control the brightness of a led by turning a potentiometer. This tutorial is part of the Nairda learning path. You can build it step by step inside the app, which checks every block you place before letting you move on. The steps We add a While loop, which repeats forever. We declare a led on pin 13. We declare a potentiometer called pot on analog pin 0. We create a number variable called reading. Inside the loop we put a delay of 100 milliseconds. Behind it we set reading to what the pot measures. Behind it we put the led and give it the variable reading. When you finish, the app takes you straight to the next tutorial in the path. ...

Write the five times table into a terminal using the Repeat loop. This tutorial is part of the Nairda learning path. You can build it step by step inside the app, which checks every block you place before letting you move on. The steps We add a Repeat loop and ask it for 10 turns. We create a number variable called n. We create a text variable called line. Inside the Repeat we set n to a sum. The sum is n plus 5, so n moves five at a time. Behind it we put Join to write n into line. On the dashboard we draw a terminal and give it the variable line. When you finish, the app takes you straight to the next tutorial in the path. ...

Write the conversion formula by nesting arithmetic blocks inside each other. This tutorial is part of the Nairda learning path. You can build it step by step inside the app, which checks every block you place before letting you move on. The steps We add a While loop, which repeats forever. We create a text variable called terminal. We create a number variable called reading. Above the loop we read a number from the terminal with Wait. Behind it we join a sum to the terminal, which starts with 32. Inside that sum we put a division by 5. And inside the division, a multiplication by 9. What gets multiplied is the variable reading. On the dashboard we draw a terminal and give it the variable terminal. When you finish, the app takes you straight to the next tutorial in the path. ...

Move a servo from the dashboard by dragging a slider. This tutorial is part of the Nairda learning path. You can build it step by step inside the app, which checks every block you place before letting you move on. The steps We add a While loop, which repeats forever. We create a number variable called position. We declare a servo on pin 9. Inside the loop we put a delay of 100 milliseconds. Behind it we put the servo and give it the variable position. On the dashboard we put a slider and give it the variable position. When you finish, the app takes you straight to the next tutorial in the path. ...

Convert temperatures with the Map block instead of writing the formula. This tutorial is part of the Nairda learning path. You can build it step by step inside the app, which checks every block you place before letting you move on. The steps We add a While loop, which repeats forever. We create a text variable called terminal. We create a number variable called reading. Above the loop we read a number from the terminal with Wait. Behind it we join a Map block to the terminal. What we map is the variable reading. It comes in from 32 to 212 Fahrenheit and goes out from 0 to 100 Celsius. On the dashboard we draw a terminal and give it the variable terminal. When you finish, the app takes you straight to the next tutorial in the path. ...

Turn a potentiometer to move a servo, mapping the reading from 0 to 180 degrees. This tutorial is part of the Nairda learning path. You can build it step by step inside the app, which checks every block you place before letting you move on. The steps We add a While loop, which repeats forever. We declare a servo on pin 9. We declare a potentiometer called pot on analog pin 0. We create a number variable called reading. Inside the loop we put a delay of 100 milliseconds. Behind it we set reading to a Map block. What we map is the pot reading. The pot comes in from 0 to 100 and goes out from 0 to 180 degrees. Behind it we put the servo and give it the variable reading. When you finish, the app takes you straight to the next tutorial in the path. ...

Change the pitch of a buzzer from the dashboard with a slider. This tutorial is part of the Nairda learning path. You can build it step by step inside the app, which checks every block you place before letting you move on. The steps We add a While loop, which repeats forever. We declare a frequency called buzzer on pin 9. We create a number variable called frequency. Inside the loop we put the buzzer and give it the variable frequency. On the dashboard we put a slider and give it the variable frequency. When you finish, the app takes you straight to the next tutorial in the path. ...

Read a text from the terminal and print it back in capital letters. This tutorial is part of the Nairda learning path. You can build it step by step inside the app, which checks every block you place before letting you move on. The steps We add a While loop, which repeats forever. We create a text variable called terminal. We create another text variable called reading. Above the loop we clear the terminal with an empty Set. Behind it we read what is typed into reading, using Wait. Behind it we add a Join block. Inside the Join we put To uppercase. And we give it the variable reading. On the dashboard we draw a terminal and give it the variable terminal. When you finish, the app takes you straight to the next tutorial in the path. ...