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always under construction

A tentative course plan


step 1 - Install party

You need either 1) get an Arduino or 2) use online simulated Arduino.

I prefer 1) becase I find it better but 2) is also ok

1) install Arduino SW on your PC

Find version to your operating system

2) See hw.html I prefer TinkerCad


step 2 - My first program

Just read and follow instructions in arduino_comic.pdf

The goal to make the LED on pin 13 to blink


step 3 - Serial communication

You can communicate with your Arduino on a text channel (serial) by the USB cable.

Please note that you need to set communication speed before using the serial communication:

Setting Serial speed in your arduino program

Serial.begin(9600);   // ~ 900 characters pr second
...
Serial.begin(115200); // ~ 1000 characters pr second

You can open a serial terminal in the PC Arduino SW. You must set the same speed as in the program.

I will suggest Serial.begin(115200);

// The setup function is called once in the beginning

void setup() {
  Serial.begin(115200); // open the serial port at 115200 bps:
}

int helTal=0;  //

// loop is called againg and again - therefore name loop

// we print 0,1,2,3,4....  with half second delay between every print
void loop() {
   Serial.println(helTal);  // println add a newline  in the end  (indicated by ln in name)

   helTal = helTal + 1;  // or short helTal++;

   delay(500); // wait 500 milliseconds (1/2 second)
}

The exercise 3 - make a for loop inside the loop function and print the first 20 elements of 3,6,13 table.


step 4 - Loops

See movie about loops in step 3 and make a program that print first 25 Fibonacci numbers.

See https://en.wikipedia.org/wiki/Fibonacci_sequence

If you want line shift use println instead of print

An example


void setup()
{
  Serial.begin(115200);
}

void loop()
{
   for (int counter=0; counter < 10; counter++)
   {
      println(2*counter);
   }
   delay(1000);
}
//output
0
2
4
6
8
10
12
14
16
18


step 5 - Loops

Use the blink program to make a program morse SOS on the LED (https://en.wikipedia.org/wiki/SOS)

  • S: …

  • O:  — 

Timing is critical.

If we set duration of a dot to 1 then

  • a dash is 3 times duration of a dot

  • Distance between dot and dash with a letter is duration of a dot

  • Distance between letters is 3 times duration of dot


step 6 - Digital input

Just see this video and do a copycat

Jens