7 segment

Development Board Learning Kit Multifungsi (Multifuction Shield)

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Papan fungsi shield untuk uji komponen dengan empat 7-segment.

Gambar 1.

Gambar 2. [sumber]

Gambar 3. [sumber]

Jumpers:

J1 is used for a 10 k pull up resistor to pin 2 of U5  (to connect a DS1820 temperature sensor [not included with the shield]) (Arduino Pin A4 ?)  {Location C4 in the picture} 

J2 is needed if you want to use the switches S1 S2 and S3 (connected to A1 A2 and A3 of the Arduino. {Location C1 in picture}

A SFH506-38 IR receiver (Pin D2) {Location C3 in picture} is also not included with this shield and can be connected to U4

I expect the 7 pin header {Location B/C1 in picture} with the Chinese characters is the header 7 pin header marked on the shield with “APC220 Bluetooth Voice Recognition Module”. (Pin D0 and D1 ?)

Pin D5 D6 D9 and A5 are accessible by 4 3 pin header connectors next to +5V and GND

D3 is connected to the Buzzer using a transistor! {Location D3 in picture}

 The 4 * 7segement displays are connected using two MC74HC595AD shift registers
D4 7segment Latch
D7 7segment CLK
D8 7segment Data

D10 Led4 {Location A2 in picture}
D11 Led3
D12 Led2
D13 Led1

A0 Pot1 (potentiometer) {Location B/C1 in picture}

A1 Button1 {Location C/D1 in picture}
A2 Button2
A3 Button3

  1. All LEDs blinking 
    int led1 = 13;
int led2 = 12;
int led3 = 11;
int led4 = 10;
 
void setup()
{
// initialize the digital pin as an output.
pinMode(led1, OUTPUT);
pinMode(led2, OUTPUT);
pinMode(led3, OUTPUT);
pinMode(led4, OUTPUT);
}
 
void loop()
{
digitalWrite(led1, HIGH);
digitalWrite(led2, HIGH);
digitalWrite(led3, HIGH);
digitalWrite(led4, HIGH);
delay(1000);
digitalWrite(led1, LOW);
digitalWrite(led2, LOW);
digitalWrite(led3, LOW);
digitalWrite(led4, LOW);
delay(1000);
}
  2. Switches example 
    const byte LED[] = {13,12,11,10};
 
#define BUTTON1 A1
#define BUTTON2 A2
 
void setup()
{
	// initialize the digital pin as an output.
	/* Set each pin to outputs */
	pinMode(LED[0], OUTPUT);
	pinMode(LED[1], OUTPUT);
	pinMode(LED[2], OUTPUT);
	pinMode(LED[3], OUTPUT);
}
 
void loop()
{
	if(!digitalRead(BUTTON1))
	{
		digitalWrite(LED[0], HIGH);
		digitalWrite(LED[1], HIGH);
		digitalWrite(LED[2], HIGH);
		digitalWrite(LED[3], HIGH);
	}
 
	if(!digitalRead(BUTTON2))
	{
		digitalWrite(LED[0], LOW);
		digitalWrite(LED[1], LOW);
		digitalWrite(LED[2], LOW);
		digitalWrite(LED[3], LOW);
		}
}
  3. Potentiometer 1 
    #define Pot1 0
 
void setup()
{
	Serial.begin(9600);
}
 
/* Main Program */
void loop()
{
 
	Serial.print("Potentiometer reading: ");
	Serial.println(analogRead(Pot1));
	/* Wait 0.5 seconds before reading again */
	delay(500);
}
  4. Pot and led 
    const byte LED[] = {13,12,11,10};
#define Pot1 0
 
void setup()
{
	Serial.begin(9600);
	// initialize the digital pin as an output.
	/* Set each pin to outputs */
	pinMode(LED[0], OUTPUT);
	pinMode(LED[1], OUTPUT);
	pinMode(LED[2], OUTPUT);
	pinMode(LED[3], OUTPUT);
}
 
/* Main Program */
void loop()
{
	int PotValue;
	//Serial.print("Potentiometer reading: ");
	PotValue = analogRead(Pot1);
	/* Wait 0.5 seconds before reading again */
	if(PotValue < 400)
	{
		digitalWrite(LED[0], LOW);
		digitalWrite(LED[1], LOW);
		digitalWrite(LED[2], LOW);
		digitalWrite(LED[3], LOW);
		Serial.print("Potentiometer: ");
		Serial.println(PotValue);
	}
	else
	{
		digitalWrite(LED[0], HIGH);
		digitalWrite(LED[1], HIGH);
		digitalWrite(LED[2], HIGH);
		digitalWrite(LED[3], HIGH);
		Serial.print("Potentiometer: ");
		Serial.println(PotValue);
	}
		delay(500);
}
  5. Segment display 
    /* Define shift register pins used for seven segment display */
#define LATCH_DIO 4
#define CLK_DIO 7
#define DATA_DIO 8
 
/* Segment byte maps for numbers 0 to 9 */
const byte SEGMENT_MAP[] = {0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0X80,0X90};
/* Byte maps to select digit 1 to 4 */
const byte SEGMENT_SELECT[] = {0xF1,0xF2,0xF4,0xF8};
 
void setup ()
{
	/* Set DIO pins to outputs */
	pinMode(LATCH_DIO,OUTPUT);
	pinMode(CLK_DIO,OUTPUT);
	pinMode(DATA_DIO,OUTPUT);
}
 
/* Main program */
void loop()
{
 
	/* Update the display with the current counter value */
	WriteNumberToSegment(0 , 0);
	WriteNumberToSegment(1 , 1);
	WriteNumberToSegment(2 , 2);
	WriteNumberToSegment(3 , 3);
}
 
/* Write a decimal number between 0 and 9 to one of the 4 digits of the display */
void WriteNumberToSegment(byte Segment, byte Value)
{
	digitalWrite(LATCH_DIO,LOW);
	shiftOut(DATA_DIO, CLK_DIO, MSBFIRST, SEGMENT_MAP[Value]);
	shiftOut(DATA_DIO, CLK_DIO, MSBFIRST, SEGMENT_SELECT[Segment] );
	digitalWrite(LATCH_DIO,HIGH);
}
  6. Read pot and display value on display 
    /* Define shift register pins used for seven segment display */
#define LATCH_DIO 4
#define CLK_DIO 7
#define DATA_DIO 8
 
#define Pot1 0
 
/* Segment byte maps for numbers 0 to 9 */
const byte SEGMENT_MAP[] = {0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0X80,0X90};
/* Byte maps to select digit 1 to 4 */
const byte SEGMENT_SELECT[] = {0xF1,0xF2,0xF4,0xF8};
 
void setup ()
{
	Serial.begin(9600);
	/* Set DIO pins to outputs */
	pinMode(LATCH_DIO,OUTPUT);
	pinMode(CLK_DIO,OUTPUT);
	pinMode(DATA_DIO,OUTPUT);
}
 
/* Main program */
void loop()
{
	int PotValue;
	PotValue = analogRead(Pot1);
	Serial.print("Potentiometer: ");
	Serial.println(PotValue);
	/* Update the display with the current counter value */
	WriteNumberToSegment(0 , PotValue / 1000);
	WriteNumberToSegment(1 , (PotValue / 100) % 10);
	WriteNumberToSegment(2 , (PotValue / 10) % 10);
	WriteNumberToSegment(3 , PotValue % 10);
}
 
/* Write a decimal number between 0 and 9 to one of the 4 digits of the display */
void WriteNumberToSegment(byte Segment, byte Value)
{
	digitalWrite(LATCH_DIO,LOW);
	shiftOut(DATA_DIO, CLK_DIO, MSBFIRST, SEGMENT_MAP[Value]);
	shiftOut(DATA_DIO, CLK_DIO, MSBFIRST, SEGMENT_SELECT[Segment] );
	digitalWrite(LATCH_DIO,HIGH);
}
  7. Read pot and display value on display (modifikasi untuk meratakan tingkat terang tampilan) 
    /* Define shift register pins used for seven segment display */
#define LATCH_DIO 4
#define CLK_DIO 7
#define DATA_DIO 8
 
#define Pot1 0
 
/* Segment byte maps for numbers 0 to 9 */
const byte SEGMENT_MAP[] = {0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0X80,0X90};
/* Byte maps to select digit 1 to 4 */
const byte SEGMENT_SELECT[] = {0xF1,0xF2,0xF4,0xF8};
 
void setup ()
{
  Serial.begin(9600);
  /* Set DIO pins to outputs */
  pinMode(LATCH_DIO,OUTPUT);
  pinMode(CLK_DIO,OUTPUT);
  pinMode(DATA_DIO,OUTPUT);
}
 
/* Main program */
void loop()
{
  int PotValue;
  PotValue = analogRead(Pot1);
  Serial.print("Potentiometer: ");
  Serial.println(PotValue);
  /* Update the display with the current counter value */
  WriteNumberToSegment(0 , PotValue / 1000);
  delay(5);
  WriteNumberToSegment(1 , (PotValue / 100) % 10);
  delay(5);
  WriteNumberToSegment(2 , (PotValue / 10) % 10);
  delay(5);
  WriteNumberToSegment(3 , PotValue % 10);
//  delay(4);
}
 
/* Write a decimal number between 0 and 9 to one of the 4 digits of the display */
void WriteNumberToSegment(byte Segment, byte Value)
{
  digitalWrite(LATCH_DIO,LOW);
  shiftOut(DATA_DIO, CLK_DIO, MSBFIRST, SEGMENT_MAP[Value]);
  shiftOut(DATA_DIO, CLK_DIO, MSBFIRST, SEGMENT_SELECT[Segment] );
  digitalWrite(LATCH_DIO,HIGH);
}

Sumber lain:
Hackatronics: Using an Arduino Multi-function Shield