Use Keypad to turn LED's on and off - LEDs and Multiplexing - Arduino Forum

Hey Guys I am new to arduino. I was wondering if you could help me. I want to have a keypad that when pressed will turn off and on an LED. e.g. If I press 1 then # I want it to turn LED1 on If I press 1 then * I want it to turn LED1 off Wiring Diagram: Code: #include <Wire.h> #include <Keypad.h> int LED1 = 9; int LED2 = 10; int LED3 = 11; int LED4 = 12; int LED5 = 13; const byte ROWS = 4; //four rows const byte COLS = 3; //three columns char keys[ROWS][COLS] = { {'1','2','3'}, {'

Where can I get a library code to print letters and numbers in a 5x5 LED matrix using Arduino? - Quora

Inline leds with a toggle switch - LEDs and Multiplexing - Arduino Forum

Input Matrix Scanning

Max7219 and 8x8LED matrix - all LEDs are constantly on - LEDs and Multiplexing - Arduino Forum

Rocket switch 3 pin with LED not working - Project Guidance - Arduino Forum

Shift register rgb common cathode led's with switches - General Electronics - Arduino Forum

Connect Arduino Uno to multiple LED and push buttons w/o breadboard - General Electronics - Arduino Forum

Controlling LEDs with A Multiplexer and Arduino — Maker Portal

Rigid 4x4 keypad decoder - voltage drop - General Electronics - Arduino Forum

Button box wiring sanity check - LEDs and Multiplexing - Arduino Forum

Help me control 1 led strip by 2 microcontroller - LEDs and Multiplexing - Arduino Forum

LED either turns on or off after each run - LEDs and Multiplexing - Arduino Forum

LED WITH MULTIPLEXER 74HC4067 – ARDUINO PROJECTS

Need help! Using the CD4067 for pushbuttons with led - LEDs and Multiplexing - Arduino Forum

2 x 7 keypad help - LEDs and Multiplexing - Arduino Forum