#include <TinyWireM.h>
#include <Tiny4kOLED.h>

void splash() {
  oled.clear();
  oled.setCursor(15, 1);
  oled.print(F("ALG & DIGI input"));

  oled.setCursor(22, 3);
  oled.print(F("For USP Lasers"));

  oled.setCursor(15, 7);
  oled.print(F("IPG-J M.Nakajima"));
}

void prepareDisplay() {
  // unsigned int i, k;
  // unsigned char ch[5];

  // oled.clear();
  // oled.begin();

  // oled.setCursor(20, 1);
  // oled.print(F("ATtiny85+SSD1306"));
  // oled.setCursor(3, 2);
  // oled.print(F("temperature|humidity"));

  // oled.bitmap(105, 4, 110, 7, img_thermometer);
  // oled.setCursor(57, 4);
  // oled.print(F("24.0C"));
  // oled.setCursor(57, 5);
  // oled.print(F("40.0%"));

  // oled.bitmap(10, 5, 17, 2, img_heart_small);
}


void setup() {

  oled.begin(128, 64, sizeof(tiny4koled_init_128x64br), tiny4koled_init_128x64br);

  // Two fonts are supplied with this library, FONT8X16 and FONT6X8
  oled.setFont(FONT6X8);

  // To clear all the memory
  oled.clear();
  oled.on();

  splash();

  delay(3000);
  oled.clear();
  // oled.setFont(FONT8X16);
  oled.on();
}

void loop() {
  int a = analogRead(A3);
  int d = analogRead(A2);
  
  oled.setCursor(10, 0);
  oled.print(F("Analog input:"));
  oled.setCursor(10, 2);
  float v1 = a / 1023.0 * 10.0;
  oled.print(v1);
  oled.setCursor(40, 2);
  oled.print(F("V"));
  
  oled.setCursor(10, 4);
  oled.print(F("Digital input:"));
  oled.setCursor(10, 6);
  float v2 = d / 1023.0 * 5.0;
  int duty = int(a / 1023.0 * 255.0);
  if (duty < 25) {
    duty = 1;
  }
  oled.print(v2);
  oled.setCursor(40, 6);
  oled.print(F("V"));
  oled.setCursor(50, 6);
  oled.print(F("->"));
  oled.setCursor(70, 6);
  oled.print(float(duty) / 255.0 * 100.0);
  oled.setCursor(100, 6);
  oled.print(F("%"));
  analogWrite(1, duty);

}