Week 10 - Output Devices

This week we have the following tasks to complete:

  • measure the power consumption of an output device
  • add an output device to a microcontroller board you've designed and program it to do something

Group Assignment

The weekly group assignment can be accessed here.

OLED Display

Beside the NeoPixel that I used in week 08 I experiment with a 0.96" 128x64 px OLED display by first running a simple "Hello World" program, where I go inspired by Sungmoon Lim. I modified his code and come up with the following: 

#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>


#define SCREEN_WIDTH 128        // OLED display width
#define SCREEN_HEIGHT 64        // OLED display height
#define OLED_RESET -1           // Reset pin

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

void setup() {
  Serial.begin(115200);

  if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;);
  }

  display.clearDisplay();
}

void displayMessage(const char* message) {
  display.clearDisplay();
  display.setTextSize(1);
  display.setTextColor(SSD1306_WHITE);
  display.setCursor(0,0);
  display.println(message);
  display.display();
}

void loop() {
  displayMessage("Hello World");
}

oled 01

What I learn this week

What I want to improve next week

Design Files


To create this page, I used ChatGPT to check my syntax and grammar.

Copyright 2025 < Benedikt Feit > - Creative Commons Attribution Non Commercial

Source code hosted at gitlab.fabcloud.org