ARDUINO PROGRAMMING

 Hello!! In this blog we'll talk about Arduino Programming, something that I really enjoyed doing.

Input devices: Interface a potentiometer analog input to maker UNO board and measure/show its signal in serial monitor Arduino IDE.

1. Below are the code/program I have used and the explanation of the code.

Code/program in writeable format	Explanation of the code
void setup() {  Serial.begin(9600); // Start Serial. }   void loop() {  int A = analogRead(A0);  Serial.println(A);// Display serial results in serial monitor.  delay (1); }	void setup() {  Serial.begin(9600); // Start Serial. : establishing serial communication between your Arduino board and another device, which in this case is my laptop.   void loop() {  int A = analogRead(A0);  Serial.println(A);// Display serial results in serial monitor.  delay (1); : it refers to reading values sent to A0 and showing results on the serial monitor with 1 ms interval.

2. Below are the hyperlink to the sources/references that I used to write the code/program.

https://docs.arduino.cc/built-in-examples/basics/AnalogReadSerial

3. Below are the problems I have encountered and how I fixed them.

Some problems i encountered were first, not knowing where to connect my wires, so what I did was to look up tutorials to guide me through the connections. I also wasn’t sure what to code, hence I went online and found the website above, and used the code given.

4. Below is the short video as the evidence that the code/program work.

Input devices: Interface a LDR to maker UNO board and measure/show its signal in serial monitor Arduino IDE:

1. Below are the code/program I have used and the explanation of the code.

Code/program in writeable format	Explanation of the code
void setup() {  Serial.begin(9600); // Start Serial. }   void loop() {  int A = analogRead(A0);  Serial.println(A);// Display serial results in serial monitor.	void setup() {  Serial.begin(9600); // Start Serial. } : establishing serial communication between your Arduino board and another device, which in this case is my laptop.   void loop() {  int A = analogRead(A0);  Serial.println(A);// Display serial results in serial monitor. : it refers to reading values sent to A0 and showing results on the serial monitor

2. Below are the hyperlink to the sources/references that I used to write the code/program.

https://create.arduino.cc/projecthub/SURYATEJA/arduino-light-senser-using-ldr-5c5458

3. Below are the problems I have encountered and how I fixed them.

For this task, the code used was similar to the one used in the previous task, but I did not understand why

4. Below is the short video as the evidence that the code/program work.

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

1. Below are the code/program I have used and the explanation of the code.

Code/program in writeable format

Explanation of the code

// C++ code // int sensorVal = 0;   int counter;   int counter2;   int counter3;   int counter4;   void setup() {  Serial.begin(9600);  pinMode(13, OUTPUT);  pinMode(12, OUTPUT);  pinMode(11, OUTPUT);    for (counter4 = 0; counter4 < 5; ++counter4) {    for (counter = 0; counter < 2; ++counter) {      digitalWrite(13, HIGH);      delay(1000); // Wait for 1000 millisecond(s)      digitalWrite(13, LOW);      delay(1000); // Wait for 1000 millisecond(s)    }    for (counter2 = 0; counter2 < 2; ++counter2) {      digitalWrite(12, HIGH);      delay(1000); // Wait for 1000 millisecond(s)      digitalWrite(12, LOW);      delay(1000); // Wait for 1000 millisecond(s)    }    for (counter3 = 0; counter3 < 2; ++counter3) {      digitalWrite(11, HIGH);      delay(1000); // Wait for 1000 millisecond(s)      digitalWrite(11, LOW);      delay(1000); // Wait for 1000 millisecond(s)    }  } }   void loop() {  delay(10); // Delay a little bit to improve simulation performance }

int sensorVal = 0;   int counter;   int counter2;   int counter3;   int counter4; : The above code refers to the counter used for the loops and the int sensorVal = 0; makes all counter start from 0    Serial.begin(9600);  pinMode(13, OUTPUT);  pinMode(12, OUTPUT);  pinMode(11, OUTPUT); :refers to establishing connections between the Arduino board and my laptop, and setting pin 11, 12 and 13 as output.  for (counter4 = 0; counter4 < 5; ++counter4) : refers to setting the loop to repeat 5 times for (counter = 0; counter < 2; ++counter) {      digitalWrite(13, HIGH);      delay(1000); // Wait for 1000 millisecond(s)      digitalWrite(13, LOW);      delay(1000); // Wait for 1000 millisecond(s)    } : refers to making the LED to blink twice with a 1 second interval between each blink. void loop() {  delay(10); : After the main loop repeats for 5 times, it’ll wait for 10 ms before repeating the whole process again.

2. Below are the hyperlink to the sources/references that I used to write the code/program.

https://www.tinkercad.com/things/lElM058OhDt-incredible-snicket-gogo/editel?tenant=circuits

3. Below are the problems I have encountered and how I fixed them.

For this task, the main problem I had was the connections of wire. Because there were so many wires going on I got kind of confused with the wire runs, which I then decided that I’ll do for one led bulb to be clear of my code then I do the same for the other two led bulbs.

4. Below is the short video as the evidence that the code/program work.

Output devices: Include pushbutton to start/stop the previous task 

1. Below are the code/program I have used and the explanation of the code.

Code/program in writeable format

Explanation of the code

void setup() {  //start serial connection  Serial.begin(9600);  //configure pin 2 as an input and enable the internal pull-up resistor  pinMode(2, INPUT_PULLUP);  pinMode(13, OUTPUT);  pinMode(12, OUTPUT);  pinMode(11, OUTPUT); }   void loop() {  //read the pushbutton value into a variable  int sensorVal = digitalRead(2);    // Keep in mind the pull-up means the pushbutton's logic is inverted. It goes  // HIGH when it's open, and LOW when it's pressed. Turn on pin 13 when the  // button's pressed, and off when it's not:  if (sensorVal == HIGH) {    digitalWrite(13, LOW);  } else {    for (int i=0; i < 5; i++)    {      {      digitalWrite(13, HIGH);      delay(1000); // Wait for 1000 millisecond(s)      digitalWrite(13, LOW);      delay(1000); // Wait for 1000 millisecond(s)      digitalWrite(12, HIGH);      delay(1000); // Wait for 1000 millisecond(s)      digitalWrite(12, LOW);      delay(1000); // Wait for 1000 millisecond(s)      digitalWrite(11, HIGH);      delay(1000); // Wait for 1000 millisecond(s)      digitalWrite(11, LOW);      delay(1000); // Wait for 1000 millisecond(s)      } } } }

pinMode(2, INPUT_PULLUP); : configuring pin 2 as the pull-up resistor and enable internal pull-up resistor for the button  int sensorVal = digitalRead(2); : It reads the input of PIN2 and writes into a integer variable, sensorVal. so when the button is pressed, it’ll start the whole loop.  if (sensorVal == HIGH) {    digitalWrite(13, LOW);  } else {    for (int i=0; i < 5; i++) : when button is not pressed, nothing will start, but when it is pressed, it’ll start the loop in 2a.

2. Below are the hyperlink to the sources/references that I used to write the code/program.

https://www.tinkercad.com/things/lElM058OhDt-incredible-snicket-gogo/editel?tenant=circuits

3. Below are the problems I have encountered and how I fixed them.

For this task, what I did was to copy my code in 2a and paste it to the “digitalInpuPullUp” code. I initially just copied the part i wanted to loop, then I realised i need to declare my output too at the start of the code too, so I did that too to resolve it. 

4. Below is the short video as the evidence that the code/program work.

Below is my Learning Reflection on the overall Arduino Programming activities.

Through this learning opportunity, I finally learned how to code, which was something I've always wanted to learn. A lot of time I have to understand what I code to be able to solve whatever problem that comes up. Often, I'll even have to search online to find a solution to my problem which could be very specific and all. However, still, I really loved how when the codes finally worked, the satisfaction that came about. For example, during the actual practical, me and Kallysa had a problem where the void set up was not declared, and we could not find the reason why, but after many times of trial and error and searching online for help, I manage to debug it and make the code work. There was another incident where we could not make 2 LED bulbs blink at the same time, but after shifting the codes around, I manage to make it work, which really made me happy. Overall, these activities were really insightful, fun and something I would try out and learn more in my free time.

Also here's our stylish pegasus and a hero shot with it: