Scratch and Mblock With Arduino Examples

 In this application, we will make a parking sensor application using HC-SR04 Ultrasonic Distance Sensor and Buzzer.    A list of materials: 1-Arduino Uno 2-BreadBoard 3-1 Buzzers 4-1 x HC-SR04 Ultrasonic Distance Sensor 5-Jumper Cables   We need your supplies. We connect the long leg of Buzzer, which we added to our breadboard, with the jumper cable to the digital pin 10 in our ardunio uno material. We connect the short leg of the buzzer to the GND (negative) terminal of the Ardunio Uno with a jumper cable. HC-SR04 Ultrasonic Distance Sensor has 4 legs. We connect the leg that says VCC to 5V with a cable. I connected the leg that says Trigger to digital pin 9, the leg that writes Echo to digital pin 8, and the leg that writes GND to the GND terminal. The circuit diagram is given below. Code Part: In the Mblock program, we add the Arduino program starter code from the Robots menu. After adding the forever code from the control menu, we create a variable called Distance

 Before moving on to this application, we had done the LEDLighting with the Potentiometer. You can learn the installation of the potentiometer and the necessary materials here.   Let's write our codes in the Mblock program. First of all, find a background from the internet, we change the background from the scene section. I add 3 apples (you can increase the number of apples) and 1 basket from the new puppet part.   Here are the codes in Apples: Since the green flag is clicked, we add the code to get our variable number of apples 0, which we created from the data section. If we do not add this, the number of apples collected will continue from where it left off if the game was played before. We take the code that generates random numbers from the operations menu and add the code that generates random numbers into the code to go to the x and y point that we added from the movement menu so that the apples come out randomly in a horizontal place. Here, we write the starting points

 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. Code part; In the Mblock program, we add the Arduino program starter code from the Robots menu. After adding the repeat c

 In this application, we will do an activity to keep the number of vehicles passing the red light at the scratch. First of all, we find a traffic light on the internet. At first, all the lamps are dark, by painting the red light, by painting the red and yellow light, by painting the yellow and green light, and finally, by painting only the green light, the sprite has 5 costumes in total. After adding our traffic light, we add a road image to the backdrops decor. In addition, we find a car picture on the Internet for the car that will pass on the road and add it. I drew a line on the road and painted it red in order to detect the people passing through the red light.   Now it's time to move the car. Below are the codes that we will write inside the car sprite. Clicking the Green Flag hides the car, and we create a variable from the Variables menu to keep cars running through the red light. Initially let this variable be zero. Because if the game has been played and closed before