Output devices

Unfortunately, for this week, I couldn't use my Week 8 board because it was missing pins. So, I decided to create a new board to try this week.

Team Practice

Here its the link of our team practice.

TEAM PRACTICE

COMPONENTS LIST

Material
Microcontroller	Attiny 44
Led	red color
Resistor	1k - 2 pieces
Button	1 piece

This ones and a Arduino 1 are the components that I used thius week for my output device

KiCad PCB desing

Just like in Week 8, I used KiCad to design my schematic and PCB. I basically used the same components, but with the Attiny 44 microcontroller to learn with a different one.

PCB CUTTING

For etching and cutting my board, I used Rolan PCB as in previous times, along with the mods program to generate the RML format.

BOARD SOLDERING

For soldering, I follow my design and place the majority of my pins on ground, 5V voltage, and the remaining pins of my Attiny44.

PROGRAMMING

Programming was different from previous times because this time I used the Arduino UNO. I took into account the use of the Attiny 44 to understand everything about the outputs, as I used an OLED screen for my output.

STEP 1

Install the Attiny 44 library in my Arduino IDE.

STEP 2

Then program the Arduino as an ISP, where an Arduino ISP example is loaded and connected to the computer to load it.

STEP 3

Then configure the Attiny board, clock, and programmer to be used.

STEP 4

At this point, I connect the pins of my new board to the Arduino using jumpers.

STEP 5

Once everything is selected, I select the option to burn the bootloader to be able to use the Arduino as a programmer for the Attiny 44.

STEP 6

Once this is ready, I connect my OLED screen to the 5V, GROUND, SDA, SCL inputs to the corresponding pins.

Código HTML Creativo

STEP 7

I design my code to display text on my OLED, in this case, it was my name and the week of work.

                // Incluir bibliotecas
                #include <TinyWireM.h>
                #include <Adafruit_GFX.h>
                #include <Adafruit_SSD1306.h>
                
                // Definir tamaño de la pantalla OLED
                #define SCREEN_WIDTH 128 // Ancho de la pantalla OLED en píxeles
                #define SCREEN_HEIGHT 64 // Alto de la pantalla OLED en píxeles
                
                // Inicializar el objeto OLED con la dirección I2C adecuada
                Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &TinyWireM, OLED_RESET);
                
                void setup() {
                  // Iniciar comunicación I2C
                  TinyWireM.begin();
                
                  // Inicializar la pantalla OLED
                  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Dirección I2C 0x3C (cambiar si es necesario)
                    Serial.println(F("No se pudo inicializar la pantalla OLED con la dirección 0x3C"));
                    for(;;);
                  }
                
                  // Limpiar la pantalla
                  display.clearDisplay();
                
                  // Mostrar texto en la pantalla OLED
                  display.setTextSize(1);
                  display.setTextColor(SSD1306_WHITE);
                  display.setCursor(0, 0);
                  display.println("Fab Lab Valeria");
                  display.println("Arellano Week09");
                
                  // Actualizar la pantalla
                  display.display();
                }
                
                void loop() {
                  // Aquí no hay nada en el bucle loop
                  // El texto permanecerá estático

            

STEP 8

I upload my design to Arduino, and it works.

Files

SCHEMATIC DESING KICAD

PCB DESING KICAD

ENGRAVING RML FOR ROLAND

CONTOURN RML FOR ROLAND

CODE OLED

Links

KiCad

ARDUINO IDE