//*************Tiny4koled (ssd1306)*************
//#include <TinyI2CMaster.h>
#include <TinyWireM.h>
#include "Tiny4kOLED.h"
#include "font16x32digits.h"
#define TINY4KOLED_QUICK_BEGIN
#define screen oled
uint8_t width = 128;
uint8_t height = 64;
#define screeninit tiny4koled_init_128x64br
#define TimeStartPoint 24
#define LINE_HEIGHT 2
#define CHAR_WIDTH 8
const uint16_t screendelay=500; //length of time between screen updates

uint8_t CurrentMinutes =1;
uint8_t CurrentSeconds =2;
uint8_t CurrentTenths = 9;

bool FastTime=false;
bool TimerDone=false;
bool FirstFastRun=true;

const uint8_t box_bitmap[] PROGMEM = {0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC};

#define Volt_Pin PB3
#define Bar 8
void setup() {
  pinMode(Volt_Pin, INPUT);
  ScreenSetup();
  screen.bitmap(120,0,120+8,1,box_bitmap);
  screen.bitmap(120,8,120+8,8+8,box_bitmap);
  delay(2000);

}

void loop() {

  
}

void PrintBatteryLevel(uint8_t height){
  screen.setFont(FONT8X16);
  screen.clear();
  digitalWrite(PB4,HIGH);
  for (int8_t i=height;i>=0;i--){
  screen.bitmap(119,i,119+8,1,box_bitmap);
  }
  digitalWrite(PB4,LOW);
  screen.setFont(FONT16X32DIGITS);

}

void CheckBattery(){
  uint16_t BatLevel=analogRead(Volt_Pin);
  screen.println(BatLevel);
  delay(500);
  if (BatLevel>750) {PrintBatteryLevel(3);}
  else if(BatLevel>500) {PrintBatteryLevel(2);}
  else if(BatLevel>250) {PrintBatteryLevel(1);}
  else{PrintBatteryLevel(0);}
}