// Authour Sain Saji
// BaseCode for SSD1306 128x64 OLED Displays.
// GITHUB Link for Complete Tutorial: 
// https://github.com/sainsaji/SSD1306-Base-Code-for-Raspberry-Pico-Ardunio-Library/edit/main/README.md
// Connect Ground PIN of OLED with PICO Ground PIN : PIN: 38
// Connect VCC PIN of OLED with the 36th PIN of PICO
// Connect SCL [CLOCK] to PIN 7 [GPIO PIN 5]
// Connect SDA [DATA] to PIN 6 [GPIO PIN 4]

//FYI: The sketch won't complie in wowki due to some library issue,Works fine with Arduino IDE

//Libraries
#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include "DHT.h"

//Definitions
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels
#define OLED_RESET     -1 // Make sure this is set to -1 for Pico
#define SCREEN_ADDRESS 0x3C //Use 3C with Pico for 128x64 OLED

#define DHTPIN 2     // Digital pin connected to the DHT sensor
// Feather HUZZAH ESP8266 note: use pins 3, 4, 5, 12, 13 or 14 --
// Pin 15 can work but DHT must be disconnected during program upload.



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



void setup()
{
  Serial.begin(9600);
	pinMode(0, INPUT);
  display.begin(SSD1306_SWITCHCAPVCC,0x3C);
  display.fillScreen(0); //0 for filling with black dots. 1 for white
  display.display();
}
void printMoist(int moist)
{
  display.setCursor(0,0);
  display.setTextSize(2);
  display.setTextColor(WHITE);
}

void loop()
{

  int soilMoistureValue = analogRead(A0);  //put Sensor insert into soil
  display.clearDisplay();
  printMoist(soilMoistureValue);
  display.display();
  // delay(1);  
}