Embedded Programming

Task:
read a microcontroller data sheet, program your board to do something, with as many different programming languages and programming environments as possible

Description:
I have been working during this assignment on my final project, my final project makes use of programming and electronics. I programmed the Fabtinystar I made with the use of the Arduino IDE. I added a potentiometer that can give an analog input to one of the LEDS of RGB and this way I can start mixing colours for the happiness lamp.

What did I do:

Download CrossPack for AVR
Install DigisparkArduino
Connect potentiometer to RGB LED
Program the electronics using the DigisparkArduino IDE

I download DigisparkArduino through this website and added it to my application folder. I used this IDE to program my FabtinyStar that I made earlier, check it out here. I also setup AVR using this tutorial and CrossPack for AVR. Before I could use the DigisparkArduino to program my FabtinyStar I istalled the micronucleus bootloader on the my board using another FabtinyStar programmer.

Materials:

Breadboard
Cable
Potentiometer
FabtinyStar
RGB LED Breakboard

My arduino code:


/* Analog Read to LED
 * ------------------ 
 *
 * turns on and off a light emitting diode(LED) connected to digital  
 * pin 13. The amount of time the LED will be on and off depends on
 * the value obtained by analogRead(). In the easiest case we connect
 * a potentiometer to analog pin 2.
 *
 * Created 1 December 2005
 * copyleft 2005 DojoDave 
 * http://arduino.berlios.de
 * 
 * Edit by MartinR 2014
 * http://www.martinr.nl
 */

int potPinRed = 1;    // select the input pin for the potentiometer
int ledPinRe = 0;   // select the pin for the LED red=0 pin1 green=1 blue=3
int ledPinGr = 1;
int ledPinBl = 3;
int ledPin = ledPinRe; // what LED the potentiometer gives an analog value
int val = 0;       // variable to store the value coming from the sensor

void setup() {
  pinMode(ledPin, OUTPUT);  // declare the ledPin as an OUTPUT
  pinMode(potPinRed, INPUT);  // declare the ledPin as an OUTPUT
}

void loop() {
  val = analogRead(potPinRed);    // read the value from the sensor
  analogWrite(ledPin, map( val, 0, 1023, 0, 255));  // turn the ledPin on
}

I found this code at the arduino website

Assignment images:

3D print settings — *image.1* The final result

Next steps:

Design boards more suited for my program
Attach three potentiometers instead of one.
Make the redesigned RGB LED board I already made and document it
Make it work without a breadboard

Conclusion:
It's really important to understand the datasheet and how to connect everything. I found it handy to make a schematic of the wires and what they are connected to.