Arduino sonar (radar) 1.8 inch TFT display 128x160 SPI

Cheap and sensitive sonar with radar screen.
Using Arduino NANO (Compatible unit), US-015 ultrasonic sensor and 1.8 inch TFT display 128x160 SPI.

Pin assign of TFT as follows,

Arduino - TFT
VCC - 6. VCC/Power supply (5V/3.3V)
GND -8. GND Power supply (GND)
VCC - 7. BL/ LED back light
D13 - 5. CLK/SPI clock signal(SCL)(SCK)
D11 - 4. DIN (SDI/Serial data input pin)(SDA)(MOSI)
D9 - 3. D/C Data/Command(RS/Command (RS=0)/ Parameter (RS=1))
D8 -1. RST/Reset pin
D10 - 2. CS Chip selection pin(CE)
Put 1K resistors between all I/O pins(1-5).

Sketch is here,

NOTE !
In this Sketch, please replace the "@" to "Less than symbol", and the "?" to "Greater than symbol".

Try it !

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//Prepare the Servo
#include @Servo.h?
Servo servo;
//Prepare the Ultrasonic sensor
int interval = 0;
double distance = 0;

//Prepare the TFT
#include @TFT.h? // Arduino LCD library
#include @SPI.h?
// pin definition for the Uno/nano
#define cs 10
#define dc 9
#define rst 8
// create an instance of the library
TFT TFTscreen = TFT(cs, dc, rst);
// char array to print to the screen
char rc_Printout[4];

void setup()
{
servo.attach(6); //D6 pin as Servo signal
pinMode( 2, OUTPUT );
pinMode( 3, INPUT );
Serial.begin( 9600 );

TFTscreen.begin();
TFTscreen.background(0, 0, 0);
}

void loop()
{
int r_beam = 100; //D6 pin as Servo signal
TFTscreen.stroke(255, 255, 255);
TFTscreen.circle(80,128,r_beam+2);
TFTscreen.setTextSize(2);
TFTscreen.text("Dist(cm)", 0, 0);

//Right rotation
for (int i=0;i@180;i=i+1){
servo.write(i);
measure_dist();
Serial.print(i);
Serial.print("\n");
delay(20);

int r = distance*2;
String r_Printout = String(r/2);

TFTscreen.stroke(0, 0, 0);
TFTscreen.setTextSize(2);
TFTscreen.text(rc_Printout, 100, 0);

r_Printout.toCharArray(rc_Printout, 4);
TFTscreen.stroke(255, 255, 255);
TFTscreen.setTextSize(2);
TFTscreen.text(rc_Printout, 100, 0);

TFTscreen.stroke(70, 70, 70);
TFTscreen.line(80,128,80+r_beam*cos((360-i)*3.14/180), 128+r_beam*sin((360-i)*3.14/180));
TFTscreen.stroke(0, 255, 0);
TFTscreen.circle(80+r*cos((360-i)*3.14/180), 128+r*sin((360-i)*3.14/180), 2);
}
TFTscreen.background(0, 0, 0);

TFTscreen.stroke(255, 255, 255);
TFTscreen.circle(80,128,r_beam+2);
TFTscreen.setTextSize(2);
TFTscreen.text("Dist(cm)", 0, 0);

//Left rotation
for (int i=180;i?0;i=i-1){
servo.write(i);
measure_dist();
Serial.print(i);
Serial.print("\n");
delay(20);

int r = distance*2;
String r_Printout = String(r/2);

TFTscreen.stroke(0, 0, 0);
TFTscreen.setTextSize(2);
TFTscreen.text(rc_Printout, 100, 0);

r_Printout.toCharArray(rc_Printout, 4);

TFTscreen.stroke(255, 255, 255);
TFTscreen.setTextSize(2);
TFTscreen.text(rc_Printout, 100, 0);

TFTscreen.stroke(70, 70, 70);
TFTscreen.line(80,128,80+r_beam*cos((360-i)*3.14/180), 128+r_beam*sin((360-i)*3.14/180));
TFTscreen.stroke(0, 255, 0);
TFTscreen.circle(80+r*cos((360-i)*3.14/180), 128+r*sin((360-i)*3.14/180), 2);
}
TFTscreen.background(0, 0, 0);
}

void measure_dist()
{
Serial.read();
// pulse !
digitalWrite( 2, HIGH );
delayMicroseconds( 100 );
digitalWrite( 2, LOW );
// mesure the interval
interval = pulseIn( 3, HIGH );
distance = interval * 0.017; // cm
Serial.print( interval, DEC );
Serial.print( "\t" );
Serial.print( distance, 1 );
Serial.print( "\n" );
}

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