Arduino Programming

For this topic, we learned about the Arduino Uno board and how to program it.

What is it? 🤔

Arduino Uno is a microcontroller board based on the ATmega328P (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator (CSTCE16M0V53-R0), a USB connection, a power jack, an ICSP header, and a reset button.

Components of Arduino Uno Kit:

Components of the Maker-Uno Board:

Tinkercad challenge 👊

For this task we were told to complete the following tasks:

1. Input devices:

a. Interface a Potentiometer Analog Input to maker UNO board and measure its signal in serial monitor Arduino IDE.

Below is the formation of the Potentiometer Analog Input to maker UNO board on tinkercad.

The blocks at the side of the picture above are the codes for this task. Below are the codes in text:

// C++ code

int sensorValue = 0;

void setup()

{

pinMode(A0, INPUT);

pinMode(13, OUTPUT);

}

void loop()

{

// read the value from the sensor

sensorValue = analogRead(A0);

// turn the LED on

digitalWrite(13, HIGH);

// pause the program for <sensorValue> milliseconds

delay(sensorValue); // Wait for sensorValue millisecond(s)

// turn the LED off

digitalWrite(13, LOW);

// pause the program for <sensorValue> milliseconds

delay(sensorValue); // Wait for sensorValue millisecond(s)

}

Then, I applied the visual version made on tinkercad to the physical Arduino Uno board. Below is the video:

Link to tinkercad design: https://www.tinkercad.com/things/0xHotacKVE1-cool-jaban-kup

b. Interface a LDR to maker UNO board and measure its signal in serial monitor Arduino IDE.

Below is the formation of the Potentiometer Analog Input to maker UNO board on tinkercad. As seen below, the light bulb lights up when there is light.

Above is the screenshot of the lightbulb when there is no light.

Above is the screenshot of the lightbulb when there is light.

Below is the code I programmed for this task:

// C++ code

int sensorValue = 0;

void setup()

{

pinMode(A0, INPUT);

pinMode(LED_BUILTIN, OUTPUT);

}

void loop()

{

// read the value from the sensor

sensorValue = analogRead(A0);

// turn the LED on

digitalWrite(LED_BUILTIN, HIGH);

// pause the program for <sensorValue> milliseconds

delay(sensorValue); // Wait for sensorValue millisecond(s)

// turn the LED off

digitalWrite(LED_BUILTIN, LOW);

// pause the program for <sensorValue> milliseconds

delay(sensorValue); // Wait for sensorValue millisecond(s)

}

Then, I applied the visual version made on tinkercad to the physical Arduino Uno board. Below is the video:

Link to tinkercad design: https://www.tinkercad.com/things/5D5aZER9zPB-copy-of-cool-jaban-kup

2. Output devices:

a. Interface 3 LEDs (Red, Yellow, Green) to maker UNO board and program it to perform something (fade or flash etc).

Below is the formation of the interface 3 LEDs (Red, Yellow, Green) to maker UNO board on tinkercad.

Below are the codes in text:

// the setup function runs once when you press reset or power the board

void setup() {

// initialize digital pin LED_BUILTIN as an output.

pinMode(10, OUTPUT);

pinMode(9, OUTPUT);

pinMode(8, OUTPUT);

}

// the loop function runs over and over again forever

void loop() {

digitalWrite(10, HIGH); // turn the LED on (HIGH is the voltage level)