EchoLot/EchoLot.ino

#include "Arduino.h"
#include <LCDWIKI_GUI.h>    // core graphics library
#include <LCDWIKI_SPI.h>    // hardware-specific library

const int trigPin = 12;
const int echoPin = 10;

//#define MODEL SSD1283A
//#define CS 10
//#define CD 9
//#define SDA 7
//#define MOSI SDA
//#define SCK 13
//#define RST 8
//#define LED -1     //if you don’t need to control the LED pin,you should set it to -1 and set it to 3.3V
//
//LCDWIKI_SPI mylcd(MODEL, CS, CD, MISO, MOSI, RST, SCK, LED);

#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define WHITE 0xFFFF

#define MODEL SSD1283A
#define LED -1				// to +5v
#define SCK  13//A1 with SCK on 13 and SDA on 11 it is 10x faster!!!
#define SDA  11//A2
#define MISO -1
#define MOSI SDA
#define CD A3
#define RST A4
#define CS A5

String lastDistance = "";

LCDWIKI_SPI mylcd(MODEL, CS, CD, MISO, MOSI, RST, SCK, LED); //software spi,model,cs,cd,miso,mosi,reset,clk,led

void setup()
{
	Serial.begin(115200);
	pinMode(trigPin, OUTPUT);
	pinMode(echoPin, INPUT);

	mylcd.Init_LCD();
	mylcd.Fill_Screen(BLACK);
}

void loop()
{
//	mylcd.Fill_Screen(BLACK);
//	mylcd.Fill_Screen(WHITE);
//	mylcd.Fill_Screen(255, 0, 0);
//	mylcd.Fill_Screen(0, 255, 0);
//	mylcd.Fill_Screen(0, 0, 255);
//	delay(3000);
//	mylcd.Fill_Screen(0, 0, 0);
//	delay(1000);
//	mylcd.Fill_Screen(255, 255, 255);
//	delay(1000);
//	mylcd.Fill_Screen(0xF800);
//	delay(1000);
//	mylcd.Fill_Screen(0x07E0);
//	delay(1000);
//	mylcd.Fill_Screen(0x001F);
//	delay(3000);

	mylcd.Set_Text_Mode(1);
	mylcd.Set_Text_colour(WHITE);
	mylcd.Set_Text_Back_colour(RED);
	mylcd.Set_Text_Size(2);

	digitalWrite(trigPin, LOW);
	delayMicroseconds(5);

	digitalWrite(trigPin, HIGH);
	delayMicroseconds(20);
	digitalWrite(trigPin, LOW);

	long duration = pulseIn(echoPin, HIGH);
	long distance = duration * 0.03432 / 2;

//	Serial.print("duration:");
//	Serial.println(duration);

//	Serial.print("Distance:");
	Serial.println(distance);

	char buf[50];
	sprintf(buf, "%lu cm", distance);

	if (!lastDistance.equals(buf)) {
		mylcd.Fill_Rect(0, 48, 130, 20, RED);
		mylcd.Print_String(buf, 30, 50);
		delay(100);
		lastDistance = buf;
	}

	delay(200);
}

//void setup() {
//	Serial.begin(115200);
//	pinMode(trigPin, OUTPUT);
//	pinMode(echoPin, INPUT);

//}

//void loop() {

//	mylcd.Set_Text_Mode(0);
//	mylcd.Fill_Screen(0x0000);
//	mylcd.Set_Text_colour(RED);
//	mylcd.Set_Text_Back_colour(BLACK);
//	mylcd.Set_Text_Size(2);
//	mylcd.Print_String("Hello World!", 0, 0);

//	digitalWrite(trigPin, LOW);
//	delayMicroseconds(5);
//
//	digitalWrite(trigPin, HIGH);
//	delayMicroseconds(20);
//	digitalWrite(trigPin, LOW);
//
//	long duration = pulseIn(echoPin, HIGH);
//	long distance = duration * 0.03432 / 2;
//
//	Serial.print("duration:");
//	Serial.println(duration);
//
//	Serial.print("Distance:");
//	Serial.println(distance);
//	delay(100);
//}