shield

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