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.
5.5mm DC Power jack Female Power Breakout Module
ICR18650 3.7V Rechargeable 2000mAh Li-ion Battery
WS2812B Programmable/Addressable RGB LED Module
20×4 Parallel LCD Display with Soldered Header Pins 





