Embedded Programming đ
đ Date / Time:
Hello there..^^. Hope a large smile finds its way to your face inspite off all the panic that COVID-19 pendemic is causing <3 ^^. Let's hope everything will be fine now that we're only on the eighth week of Fab Academy.. ^^
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A) Group Assignment:
"Compare the performance and development workflows for other architecture". That was what we are required to do as a group for this week .. ^^
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B) Individual Assignment:
Read a microcontroller data sheet program your board to do something, with as many different programming languages and programming environments as possible.
A. Datasheet Reading:
As a mechanical power engineer I don't have lots of things that I can understand from a microcontroller datasheet. đ
yet I was able to get my utmost benefit from this figure.
It showed me pin numbers which of them are PWM and I used this information alot in designing the input and output boards when all I could do was just design during the lockdown.
B. Echo circuit programming:
Function:
My Echo board has a slider switch and 2 LEDs. I could do alot of different functions using just three of them. But I chose to greet myself in Morse code. đđ
For those of you who don't know what Morse code is check wikipedia it has a lot to say about it, but as a brief it's an encrypted way of communication that was invented by "Samuel Morse". Each Morse code symbol is formed by a sequence of dots and dashes. The dot duration is the basic unit of time measurement in Morse code transmission.
The duration of a dash is three times the duration of a dot. Each dot or dash within a character is followed by period of signal absence, called a space, equal to the dot duration. The letters of a word are separated by a space of duration equal to three dots, and the words are separated by a space equal to seven dots.
Message in Morse Code:
When the slider switch is on the Green LED blinks: "Hi Rowa":
. . . . . . . - . - - - . - - . -
When the slider switch is off the Red LED blinks: "Bye Rowa":
- . . . - . - - . . - . - - - . - - . -
Durations:
Light on:
1- Dot = Basic Unit = 250 ms.
2- Dash = 3 x Basic Unit = 750 ms.
Light off:
3- Space between dots or dashes of a character = Basic Unit = 250 ms.
4- Space between characters in a word = 3 x Basic Unit = 750 ms.
5- Space between words in a sentence = 7 x Basic Unit = 1750 ms.
Program code in Arduino C:
const int LED1= 7;
const int LED2= 8;
const int Slider= 2;
int value;
void setup() {
pinMode(LED1,OUTPUT);
pinMode(LED2,OUTPUT);
pinMode(Slider,INPUT);
}
void loop() {
value = digitalRead(Slider)
if (value == HIGH) {
//Morse Code Hi Rowa
//Get Ready
digitalWrite(LED1, HIGH);
delay(3000);
digitalWrite(LED1, LOW);
delay(3000);
//H
digitalWrite(LED1, HIGH);
delay(250);
digitalWrite(LED1, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(250);
digitalWrite(LED1, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(250);
digitalWrite(LED1, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(250);
digitalWrite(LED1, LOW);
delay(750);
//I
digitalWrite(LED1, HIGH);
delay(250);
digitalWrite(LED1, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(250);
digitalWrite(LED1, LOW);
delay(1750);
//R
digitalWrite(LED1, HIGH);
delay(250);
digitalWrite(LED1, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(750);
digitalWrite(LED1, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(250);
digitalWrite(LED1, LOW);
delay(750);
//O
digitalWrite(LED1, HIGH);
delay(750);
digitalWrite(LED1, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(750);
digitalWrite(LED1, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(750);
digitalWrite(LED1, LOW);
delay(750);
//W
digitalWrite(LED1, HIGH);
delay(250);
digitalWrite(LED1, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(750);
digitalWrite(LED1, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(750);
digitalWrite(LED1, LOW);
delay(750);
//A
digitalWrite(LED1, HIGH);
delay(250);
digitalWrite(LED1, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(750);
digitalWrite(LED1, LOW);
delay(750);
}
else if (value == LOW) {
//Morse Coode Bye Rowa
//Get Ready
digitalWrite(LED2, HIGH);
delay(3000);
digitalWrite(LED2, LOW);
delay(3000);
//B
digitalWrite(LED2, HIGH);
delay(750);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(250);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(250);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(250);
digitalWrite(LED2, LOW);
delay(750);
//Y
digitalWrite(LED2, HIGH);
delay(750);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(250);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(750);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(750);
digitalWrite(LED2, LOW);
delay(750);
//E
digitalWrite(LED2, HIGH);
delay(250);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(250);
digitalWrite(LED2, LOW);
delay(1750);
//R
digitalWrite(LED2, HIGH);
delay(250);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(750);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(250);
digitalWrite(LED2, LOW);
delay(750);
//O
digitalWrite(LED2, HIGH);
delay(750);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(750);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(750);
digitalWrite(LED2, LOW);
delay(750);
//W
digitalWrite(LED2, HIGH);
delay(250);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(750);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(750);
digitalWrite(LED2, LOW);
delay(750);
//A
digitalWrite(LED2, HIGH);
delay(250);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(750);
digitalWrite(LED2, LOW);
delay(750);
}
}
Note:
There are of course other ways to do the function of this code with Arduino, but I chose to write it my way and it was much fun.đ
Getting to program my lovely Hello Echo board AKA "Awesome PCB 01 " :D, I was shocked to have done a really stupid mistake. It was that the slider switch is connected in a WRONG way and it can never switch between the two different states my circuit was intended to have. đđ
Even though it was so easy to correct my design to have the switch work properly, I didn't have time to re-mill another circuit, so I had to accept this one and toggle my code to over come not having a switch. đ
const int LED1= 7;
const int LED2= 8;
void setup() {
pinMode(LED1,OUTPUT);
pinMode(LED2,OUTPUT);
}
void loop() {
//Morse Code Hi Rowa
//Get Ready
digitalWrite(LED1, HIGH);
delay(3000);
digitalWrite(LED1, LOW);
delay(3000);
//H
digitalWrite(LED1, HIGH);
delay(250);
digitalWrite(LED1, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(250);
digitalWrite(LED1, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(250);
digitalWrite(LED1, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(250);
digitalWrite(LED1, LOW);
delay(750);
//I
digitalWrite(LED1, HIGH);
delay(250);
digitalWrite(LED1, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(250);
digitalWrite(LED1, LOW);
delay(1750);
//R
digitalWrite(LED1, HIGH);
delay(250);
digitalWrite(LED1, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(750);
digitalWrite(LED1, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(250);
digitalWrite(LED1, LOW);
delay(750);
//O
digitalWrite(LED1, HIGH);
delay(750);
digitalWrite(LED1, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(750);
digitalWrite(LED1, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(750);
digitalWrite(LED1, LOW);
delay(750);
//W
digitalWrite(LED1, HIGH);
delay(250);
digitalWrite(LED1, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(750);
digitalWrite(LED1, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(750);
digitalWrite(LED1, LOW);
delay(750);
//A
digitalWrite(LED1, HIGH);
delay(250);
digitalWrite(LED1, LOW);
delay(250);
digitalWrite(LED1, HIGH);
delay(750);
digitalWrite(LED1, LOW);
delay(750);
//Morse Coode Bye Rowa
//Get Ready
digitalWrite(LED2, HIGH);
delay(3000);
digitalWrite(LED2, LOW);
delay(3000);
//B
digitalWrite(LED2, HIGH);
delay(750);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(250);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(250);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(250);
digitalWrite(LED2, LOW);
delay(750);
//Y
digitalWrite(LED2, HIGH);
delay(750);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(250);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(750);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(750);
digitalWrite(LED2, LOW);
delay(750);
//E
digitalWrite(LED2, HIGH);
delay(250);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(250);
digitalWrite(LED2, LOW);
delay(1750);
//R
digitalWrite(LED2, HIGH);
delay(250);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(750);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(250);
digitalWrite(LED2, LOW);
delay(750);
//O
digitalWrite(LED2, HIGH);
delay(750);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(750);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(750);
digitalWrite(LED2, LOW);
delay(750);
//W
digitalWrite(LED2, HIGH);
delay(250);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(750);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(750);
digitalWrite(LED2, LOW);
delay(750);
//A
digitalWrite(LED2, HIGH);
delay(250);
digitalWrite(LED2, LOW);
delay(250);
digitalWrite(LED2, HIGH);
delay(750);
digitalWrite(LED2, LOW);
delay(750);
}
Downloadables: đž
Arduino File.inoHere
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Šī¸ Row'a M. M. Othman - Fab Academy 2020