What is seven segment display?It is an electronic display device comprising seven LED segments, arranged in a shape of "8".
StructureSingle digit seven segment display has 7 LEDs named as segment (a to g) along with the 8th LED assigned as decimal point.
StructureIt is a 10 pin device, where 8 pins are assigned to the LEDs and rest 2 pins are connected internally to establish common pin (anode or cathode)
1. Common anode (CA) type seven segment display2. Common cathode (CC) type seven segment display
In a CA display, all the positive sides of the individual LED segments are connected together.In a CC display, all the negative sides of the individual LED segment are connected together.
How does it work ?If you want to display any particular number on it, you need to know which LED segment should light up.If you want to display 1 using CA displayd, e= ON a, b, c, g, f, DP=OFF
Required Components1. Arduino uno board 2. Seven segment display 3. Jumper wires 4. bread board 5. 1 k ohm resistor
The 1 k ohm resistor is required as the current limiting resistors in series with each LED segment to prevent them from burning.