Understand How to use Seven Segment Display with Arduino

Visual indication is crucial in modern electronics, enhancing user interaction. The Seven-Segment Display has been a reliable solution for decades, widely used across industries for numeric value display. It offers practicality, cost-effectiveness, and readability in various conditions, making it suitable for applications like counters and token systems.

Seven Segment Display:

Displayed in a simulation where an Arduino counts from 0 to 9, these displays come in various sizes, commonly 0.56 inches. Comprising seven LEDs arranged to form digits with an additional LED for the decimal point, they offer flexibility in showcasing numbers from 0 to 9.

Types of seven segment display:

Segment Displays are classified as Common Cathode (CC) and Common Anode (CA) based on LED pin connections.

• Common Cathode Displays: Cathodes of LEDs connect to the common pin, linked to the ground, activated by a high pulse.

• Common Anode Displays: Anodes connect to the common pin, linked to the positive rail, activated by a low pulse.

Both types illuminate specific segments to display numbers or characters.

Displaying Number:

Activation of corresponding pins with the appropriate signal displays numbers or patterns. For Common Cathode, a Logic 0 is used, and for Common Anode, a Logic 1. Alphabets can also be displayed.

Tinkercad simulation demonstrates interfacing with Arduino, displaying numbers 0 to 9.

Connecting a Seven Segment Display with Arduino:

Place the display module on a breadboard, connecting the common pin to ground. Wire other pins to digital pins D2 to D9 through current limiting resistors.

Arduino Code:

Install the SevSeg library via Arduino IDE's Library Manager. Copy provided code, counting from 0 to 9, displaying on the display.

Projects Featuring Seven Segment Displays:

1. Guide and code for connecting Seven Segment Display to Raspberry Pi.

2. Build a digital clock using Arduino and four 7-segment displays.

3. Create a digital counter with 555 Timer IC.

Seven segment displays offer a straightforward method for numeric display tasks, with applications extending from Arduino to Raspberry Pi, facilitating practical electronics projects.