User manual
Ausgabe 19.05.2017 Copyright by Joy-IT 44
5.15 Project 15: 4-digit LED segment display
In this project we will use a 4-digit 7-segment LED display.
Current liming resistors are essenal for LED displays.
There are two ways of wiring the resistors.
You can either connect one resistor to every anode (4 resistors connected to
anode d1-d4) or you can connect one resistor to every PIN.
The rst way is needing less resistors but can not keep a constant display
brightness.
Hardware Amount
Mega2560 board 1
USB cable 1
4 digit 7-segment display 1
220Ω Resistor 8
Breadboard 1
Breadboard cable 12