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Elegant offer for single digit seven segment display using 74LS47. Purchase this module at 20% low cost price for the next seven days. Limited numbers available. Buy it soon.

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Paulp Paul

Very impressive website. Very good products you have. Easy to implement. Easy for application circuits. Very good blog so that users could easily do the circuit. Beautiful pictures and drawings. Good work.

Paulp Paul
Poulson Paul

Amazing website. Very good presentation. Great effort and good work. Easy to understand and ideal for beginners. Very much impressive. Thanks a lot for this great work. Keep doing more and more.

Poulson Paul

Latest Blog

Working of low noise electret MIC pre-amplifier module

Working of low noise electret  MIC pre-amplifier module

Connect the output to a Digital Storage Oscilloscope to see the variations in output with the sound signals on electret MIC.

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7-digit seven segment display module using Arduino UNO through 32-bit serial-in parallel-out shift register module

7-digit seven segment display module using Arduino UNO through 32-bit serial-in parallel-out shift register module

Upload the following program to Arduino board

//Pin connected to ST_CP (12) of 74HC595
int latchPin = 12;
//Pin connected to SH_CP (11) of 74HC595
int clockPin = 11;
////Pin connected to DS (14) of 74HC595
int dataPin = 10;

int numDigitArray[7] = {0, 0, 0, 0, 0, 0, 0};
int dotPointArray[7] = {0, 0, 0, 0, 0, 0, 0};

void displayValueAndDigit(byte value,

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7-digit seven segment display module using Arduino UNO

7-digit seven segment display module using Arduino UNO

#define D0 9 // A terminal of seven segment display module
#define D1 10 // B terminal of seven segment display module
#define D2 11 // C terminal of seven segment display module
#define D3 12 // D terminal of seven segment display module

#define LE1 2
#define LE2 3
#define LE3 4
#define LE4 5
#define LE5 6
#define LE6 7
#define LE7 8

// the setup function runs once when you press reset or power the board
void setup() {
// initialize digital pins as output.

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