Then you process each of your tokens in the case you get multiple tokens which you can always check by inquiring for the length of the array in the split function (split/splitTokens => Reference)īy the way, notice in your setup: myPort.bufferUntil('\n') but you are not sending this character in your arduino code. The Ground and the VCC pins of the module needs to be connected to the Ground and the 5. On the Processing side, you read the input data from your serial and you split your data based on the new line char. The HC-SR04 Ultrasonic Module has 4 pins, Ground, VCC, Trig and Echo. On the arduino side, you send a new line character after sending data. If you make your life easier, you change both codes. MyPort = new Serial(this, portName, 9600) Īnyhow, the problem is sort of both. Video3 = new Movie(this, "me gustaria estar aqui.mp4") Video2 = new Movie(this, "estas lejos.mp4") Step 1: Watch This Video In the tutorial, we show how to make a distance measurement device with Arduino Uno, Ultrasonic sensor, and some LEDs. Video1 = new Movie(this, "estas ahi.mp4") It's a problem with the code in both programs or just the sensor?Īrduino /* How to use the HC-SR04 Ultrasonic Sensor with Arduinoĭistance = ultrasonic.distanceRead(CM) //Use 'CM' for centimeters or 'INC' for inches I found the way to stablish communication between the two programs (Arduino and Processing) but when I wanted to execute an "if" statement the sensor doesn't work and gives me the "null" answer. With the help of an Arduino, the sensor can be easily integrated into. It is widely used in robotics, security systems, and automation projects due to its accuracy, versatility, and low cost. The thing is that I'm having troubles with my sensor and the response in Processing. The Ultrasonic Sensor HC-SR04 is a popular distance-measuring sensor that uses sound waves to determine the distance between the sensor and an object. This Code doesnt use any delays and is event-driven. This could be the fifth(?) but here I go.again. Arduino board HC-SR04 Ultrasonic Sensor LEDs jumper Wire (M-M),(M-F) Resistor Breadboard Add Tip Ask Question Comment Download. I have asked many questions about an art project that I'm making, but in different threads.
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