Graph

This example shows you how to send a byte of data from the Arduino to a personal computer and graph the result. This is called serial communication because the connection appears to both the board and the computer as a serial port, even though it may actually use a USB cable, a serial to USB and a USB to serial converter.

You can use the serial monitor of the Arduino Software (IDE) to view the sent data, or it can be read by Processing (see code below), Flash, PD, Max/MSP, etc.

Step 1: What You Need?

1 x Arduino Board ( Arduino UNO R3 used in this tutorial.)
1 x Analog Sensor ( Potentiometer, Photocell, etc.)
1 x USB Type-B Cable 
Female-to-Male Jumper Wires 


Software Required

• Processing or
• Max/MSP version 5
• Arduino IDE

Optional 

Arduino Uno R3 Acrylic Transparent Casing

You can buy Arduino Compatible UNO Ultimate Starter Kit / Learning Kit at here.

Don't have components? Don't worry. Just click the component's name. 

Step 2: Build Your Circuit.

Connect a potentiometer or other analog sensor to analog input 0.

Step 3: Upload The Code.

1. Select the Arduino board type: Select Tools >> Board >> Select your correct Arduino board used.

2. Find the port number by accessing device manager on Windows. See the section Port (COM&LPT) and look for an open port named "Arduino Uno (COMxx)". If you are using a different board, you will find a name accordingly. What matters is the xx in COMxx part. In my case, it's COM3. So my port number is 3.

Select the right port: Tools >> Port >> Select the port number.

3. You can find this code in the example of Arduino IDE.
Select File >> Examples >> 04.Communication >> Graph

Click press the "upload" button (see the button with right arrow mark).

Processing Sketch

Using the Processing sketch in the code sample above, you'll get a graph of the sensor's value. As you change the value of the analog sensor, you'll get a graph something like this:

Max Code

The max patch looks like this. The text of the patch is in the code sample above. Copy the text and paste it into a new Max window to see the sketch.

Download: 

• Processing or
• Max/MSP version 5
• Arduino IDE

Sources:https://www.arduino.cc/en/Tutorial/Graph

Unknown

Author & Editor

My Robot Education Sdn. Bhd. (Robotedu.my) was founded in 2015 as the first robotics education centre in Malaysia to provide Arduino-based robotics courses for youths. Our vision is to be able to provide robotics education to every youth in Malaysia.