4. Embedded programming¶

This week I worked on embedded programming using arduino

Research¶

we researched as a group few arduino micro controllers learning about their capacities and their builtin features alongside the pins which are ports some for input some for output for various things such as power, signals..and etc, and we got to know Programming languages used in them.

We learned about Arduino IDE which is c++ based and circuit python.

testing arduinos¶

I worked on Arduino MKR WIFI 1010 micro controller to try simple things on the embedded led light output, the first one was to make the light brightness fade in and out, the second one was making the light gives output in morse code corresponding with the input text i give.

installing python¶

1- Download and install mu edittor
2- download these two files
3- place those 2 files in the chip file
4- open the mu editor make a code then save it in the cip file in the place of the code file with the same name as it

ps: if the chip file is not showing press this button in the red circle twice

Code Example¶

Fading light code in Arduino IDE

int ledPin = LED_BUILTIN;   // LED pin

void setup() {
  pinMode(ledPin, OUTPUT);
}

void loop() {
  // Increasing brightness
  for (int brightness = 0; brightness <= 255; brightness++) {
    analogWrite(ledPin, brightness);
    delay(5);
  }

  // Decreasing brightness
  for (int brightness = 255; brightness >= 0; brightness--) {
    analogWrite(ledPin, brightness);
    delay(5);
  }
}

morse code in Arduino IDE

int ledPin = LED_BUILTIN;   // LED pin

// Morse code mapping
const char* morseCode[] = {
  ".-", "-...", "-.-.", "-..", ".", "..-.", "--.", "....", "..", 
  ".---", "-.-", ".-..", "--", "-.", "---", ".--.", "--.-", ".-.", 
  "...", "-", "..-", "...-", ".--", "-..-", "-.--", "--.."
};
const int dotDuration = 200;  // Duration of a dot in milliseconds

void setup() {
  pinMode(ledPin, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  if (Serial.available()) {
    String text = Serial.readStringUntil('\n');  // Read the incoming text from Serial
    text.toLowerCase();  // Convert the text to lowercase

    for (int i = 0; i < text.length(); i++) {
      char c = text.charAt(i);

      if (c >= 'a' && c <= 'z') {
        int index = c - 'a';
        playMorseCode(morseCode[index]);
      }
      else if (c == ' ') {
        delay(dotDuration * 3);  // Space between words
      }
    }
  }
}

void playMorseCode(const char* morse) {
  for (int i = 0; i < strlen(morse); i++) {
    char c = morse[i];

    if (c == '.') {
      digitalWrite(ledPin, HIGH);
      delay(dotDuration);
      digitalWrite(ledPin, LOW);
      delay(dotDuration);
    }
    else if (c == '-') {
      digitalWrite(ledPin, HIGH);
      delay(dotDuration * 3);
      digitalWrite(ledPin, LOW);
      delay(dotDuration);
    }
  }

  delay(dotDuration * 2);  // Space between letters
}

SOS morse message in Python

import time
import board
import digitalio
from time import sleep

led = digitalio.DigitalInOut(board.D6)
led.direction = digitalio.Direction.OUTPUT

while True:
  led.value = True
  sleep(1)
  led.value = False
  sleep(0.5)
  led.value = True
  sleep(1)
  led.value = False
  sleep(0.5)
  led.value = True
  sleep(1)
  led.value = False
  sleep(0.5) 
  led.value = True
  sleep(2)
  led.value = False
  sleep(0.5)
  led.value = True
  sleep(2)
  led.value = False
  sleep(0.5)
  led.value = True
  sleep(2)
  led.value = False
  sleep(0.5)
  led.value = True
  sleep(1)
  led.value = False
  sleep(0.5)
  led.value = True
  sleep(1)
  led.value = False
  sleep(0.5)
  led.value = True
  sleep(1)
  led.value = False
  sleep(3)

4. Embedded programming¶

Research¶

testing arduinos¶

installing python¶

Code Example¶

Gallery¶

files¶

Video¶

From Vimeo¶

From Youtube¶

3D Models¶