red, green, and blue, we use a single LED known as common cathode RGB LEDs. The image above shows how we connect the Arduino to the breadboard. The circuit diagram to implement the color production is shown below: In Matlab, we use the command writePMWVoltage(board, pin, value). In an Arduino IDE, the voltages of these PMW pins can be written by analogwrite(pin, value). Arduino produces this voltage variation by varying the duty cycle of a square wave. The pins can generate a dc voltage in 256 variations since it is an 8-bit controller (2^8). They can give any voltage in the range 0-5V with the help of PMW. This is because they are supported by pulse width modulation (PMW). In the digital input/output, pins 11, 10, 9, 6, 5, 3 have ~ symbols. Analog in: Used when reading the analog sensors.Serial out(Tx)/in(Rx): It is used to communicate between Arduino and the computer or other connected devices.Digital I/O: They collect data from the Arduino sensors and write them to other components(actuators).It governs the functionality of the Arduino. Microcontroller Atmega328: It is the microcontroller.Reset: This button is used to reset the Arduino after use.Power supply: It is used to provide external power to the Arduino board.USB connector: It helps the user connect the board to a computer or laptop when programming the controller.The different components of this microcontroller are shown in the image below:

The Arduino board is an open-source microcontroller board based on the microchip ATmega328P microcontroller developed by the Arduino company. An understanding of the MATLAB graphical user interface.A proper understanding of MATLAB basics.To follow along with this tutorial, the reader will need to have: One can learn how to interface Arduino Uno with Matlab and get an idea of how different colors are produced from three primary colors Red, Green, and Blue.

The Arduino Uno board is interfaced with MATLAB. This tutorial will present a scheme to produce any color using RGB LEDs controlled by the Arduino Uno board.

The boards have digital, and analog input/output (I/O) pins connected to breadboards and other circuits. These kits are used for making digital devices using open-source hardware and software.Ī wide range of microprocessors and controllers are used in Arduino board designs. Arduino is an initiative and user community that designs and manufactures single-board microcontrollers and microcontroller kits.

Arduino uno led datasheet