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.
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Step 1: Components Required
1. Seven segment display.
2. 220 Ohm resistors.
3. Jumper wire.
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.