The segment is a combination of 7 LED lines or segments. The segments of the display lights in different combinations to display Numbers from 0 to 9, the Arabic Numerals. The number is displayed by the code or any encoder-decoder IC which gives the command to light LED to make combination and display numbers.
ESP-01 ESP8266 Adapter Programmer for Arduino
1-Channel 5V Relay Module for Arduino
LED Traffic Light Signal Module 8mm LED 






