4. Embedded programming¶

This week we learned about MICROCONTROLLER.

WHAT IS A MICROCONTROLLER??¶

A microcontroller is a small computer on a single VLSI integrated circuit chip. A microcontroller contains one or more CPUs along with memory and programmable input/output peripherals.

Different types of MICROCONTROLLERS.

USING ARDUINO IDE¶

The ARDUINO IDE is an open-source software, which is used to write and upload code to the Arduino boards.

Downloading “Arduino IDE” .

DOWNLOAD LINK

We will be using “Adafruit Feather nRF52840 Express” microcontroller.

set up the Program for the microcontroller we will be using . followed the steps provided in Adafruit Website.

BLINK¶

First, We opened the BLINK example file. File-> Examples-> 01.Basic-> Blink

Then, We continued the SETUP to make sure it is connected to the microcontroller.
Tools-> Board ->Adafruit nRF52-> Adafruit Feather nRF52840 Express

Tools-> Port

after the setup, I copied the commands from the Blink sheet.

Then upload to the microcontroller

when its done uploading it will be writen in the tab as well as the change hapening in the microcontroller

CODE¶

void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(LED_BUILTIN, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(LED_BUILTIN, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(1000);                       // wait for a second
  digitalWrite(LED_BUILTIN, LOW);    // turn the LED off by making the voltage LOW
  delay(1000);                       // wait for a second
}

VIDEO¶

TINKER CAD¶

Open Tinkercad website .

circuits -> new circuits.

Drag and Drop the “arduino uno” component.

Chose the code editer to strart the programing .

From the highlighted bar we drag the command we want to use in programing and drop it in the second bar.

MORSE CODE¶

The first thing I did using the Tinker Cad is the blink by using morse code.

To Transulate the word into a morse code I used Morse code trasulater.

I chose a short word “cat”.

created the code in Tinker CAD

download the file from tinkercad and open it in aduino ino .

SETUP the program
Tools-> Board ->Adafruit nRF52-> Adafruit Feather nRF52840 Express.

Tools-> Port

- UPLOAD

CODE¶

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

void loop()
{
  digitalWrite(LED_BUILTIN, HIGH);
  delay(1000); // Wait for 1000 millisecond(s)
  digitalWrite(LED_BUILTIN, LOW);
  delay(500); // Wait for 500 millisecond(s)
  digitalWrite(LED_BUILTIN, HIGH);
  delay(500); // Wait for 500 millisecond(s)
  digitalWrite(LED_BUILTIN, LOW);
  delay(500); // Wait for 500 millisecond(s)
  digitalWrite(LED_BUILTIN, HIGH);
  delay(1000); // Wait for 1000 millisecond(s)
  digitalWrite(LED_BUILTIN, LOW);
  delay(500); // Wait for 500 millisecond(s)
  digitalWrite(LED_BUILTIN, HIGH);
  delay(500); // Wait for 500 millisecond(s)
  digitalWrite(LED_BUILTIN, LOW);
  delay(2000); // Wait for 2000 millisecond(s)
  digitalWrite(LED_BUILTIN, HIGH);
  delay(500); // Wait for 500 millisecond(s)
  digitalWrite(LED_BUILTIN, LOW);
  delay(500); // Wait for 500 millisecond(s)
  digitalWrite(LED_BUILTIN, HIGH);
  delay(1000); // Wait for 1000 millisecond(s)
  digitalWrite(LED_BUILTIN, LOW);
  delay(2000); // Wait for 2000 millisecond(s)
  digitalWrite(LED_BUILTIN, HIGH);
  delay(1000); // Wait for 1000 millisecond(s)
  digitalWrite(LED_BUILTIN, LOW);
  delay(5000); // Wait for 5000 millisecond(s)
}

VIDEO¶

Challenges¶

Easy mode¶

we had to program the LED blink to be randomized from 1-5 sec

CODE¶

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

void loop()
{
  digitalWrite(LED_BUILTIN, HIGH);
  delay(1000); // Wait for 1000 millisecond(s)
  digitalWrite(LED_BUILTIN, LOW);
  delay(1000 * random(1, 5 + 1)); // Wait for 1000 * random(1, 5 + 1) millisecond(s)
}

VIDEO¶

CIRCUIT PYTHON & MU EDITER¶

DOWNLOADED CIRUIT we

Last update: August 16, 2022