2 Digit Seven Segment Display





Introduction: 2 Digit Seven Segment Display

Most of the newbies are confused about using two or more seven segment displays, here is an instructable showing the implementation of the same with a microcontroller.

This is possible by virtue of high switching speed of LED and high of the microcontroller.

Step 1: Components Required

1. Seven segment display.

2. 220 Ohm resistors.

3. Jumper wire.

4. Breadboard.

5. Arduino UNO.

Step 2: Pin Configuration

Please note down that I have never used the pin notation as per Arduino, rather the port wise pins have been mentioned wiz; PORTC, PORTD, etc.

The pin configuration of Arduino UNO, seven segment display(both Common Anode & Common Cathode) is as shown.

Step 3: Circuit:

Make connection as shown in the schematic diagram.

Step 4: Source Code

The source code can be obtained from my GitHub profile. Click here



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OK, n00b alert... I was interested in constructing a small compact elctronic scoring device. Let's say I have 2IN X 2IN X 2IN space, to accommodate a pair of 2-digit displays, the arduino UNO, toggle/up-down numeric control, battery power etc. Is this even remotely possible?

are those displays common anode ?

Yea, but can you make the seven segment displays do that exact same thing without the Arduino Micro-controller? We used to do that with building our own oscillator and circuitry. Makes you learn more about how things really work. Nice project either way. I am glad to see younger folks getting into electronics even if it is always a Arduino controller circuit.

Thank you, we are here to learn unknown concepts of course. I'll be glad to learn your concept too. Could you please share it with us??