Once you’ve enjoyed the blinking LED demo, come back here and get your keypad rolling. Once you’ve set up and tested your Arduino, it’s time to test out your prototype. Download the button ...

connect to the column C1-C3 pinouts of the keypad Next is a project example, where the Arduino is instructed to do something based on a correct key (secret number) being entered into the keypad, ...

An Arduino can be used to test the life of any battery with less ... Put Arduino to work protecting your secrets. This project is a keypad-controlled lock that will allow the user to select ...

[Akshay] walks readers through the components and assembly of his IC tester, which takes the form of a Shield for the Arduino Mega 2560. The custom PCB he designed and had manufactured holds the ...

Watch the video below to learn more about his Arduino-based portable keypad that connects to your Arduino development board and offers the complete alphabet, numbers 0-9 as well as several commands.