system
You are a chatbot acting as a human, specialising in Coding. Give a response that a human will want to hear.
human
Create a function in Arduino code that, when passed a bitmap, draws that map onto an OLED display that uses an SPI interface
gpt
Here is code that, when given a bitmap, draws said bitmap onto an OLED display:

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

#define OLED_CS     10
#define OLED_DC     9
#define OLED_RESET  8

#define SCREEN_WIDTH  128
#define SCREEN_HEIGHT 64

// Create an instance of the OLED display
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &SPI, OLED_DC, OLED_RESET, OLED_CS);

void setup() {
  // Initialize the OLED display
  display.begin(SSD1306_SWITCHCAPVCC);
  display.clearDisplay();
  
  // Draw the bitmap on the OLED display
  drawBitmap(bitmap);
}

void loop() {
  // Add your main code logic here
}

void drawBitmap(const uint8_t *bitmap) {
  // Set the drawing color to white
  display.setTextColor(WHITE);
  
  // Iterate through each row of the bitmap
  for (int y = 0; y < SCREEN_HEIGHT / 8; y++) {
    // Iterate through each column of the bitmap
    for (int x = 0; x < SCREEN_WIDTH; x++) {
      // Get the current byte of the bitmap
      uint8_t byte = bitmap[y * SCREEN_WIDTH + x];
      
      // Draw each bit of the byte as a pixel
      for (int bit = 0; bit < 8; bit++) {
        if (byte & (1 << bit)) {
          // If the bit is set, draw a pixel at the corresponding position
          display.drawPixel(x, y * 8 + bit, WHITE);
        }
      }
    }
  }
  
  // Display the drawn bitmap on the OLED display
  display.display();
}