The library files provide useful functions to make it easy to communicate with matrix keypads (like a 4x4 keypad) that use the I2C communication protocol. The demo program shows the usage of the ...

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, probably the most demanded application of the keypad.

Keypads are very handy input devices. And there are many great libraries written to interface to keypads! Using this firmware that scans the keys and an 3.3v 8MHz Arduino Pro-Mini, it's easy to create ...

In this tutorial we are going to interface a 4x4 (16 key) keypad with ARDUINO UNO. We all know keypad is one of the most important input devices used in electronics engineering.

Arduino Code for Digital Keypad Door Lock The complete Arduino Door Lock Code can be found at the bottom of this page. You can directly upload the code, but it is recommended to read the below ...

JC Pro Maco is not the only Arduino-powered keypad with a rotary encoder, and he got his inspiration from other projects listing on Tindie, including the Hub16 programmable macro keyboard with 16 keys ...

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.

Makers and developers that enjoy creating projects using the Arduino platform may be interested in a new shield for Arduino that incorporates an LCD JEMshield++, keypad and enclosure all in one ...

In an era where homeowners frequently leave for work or education, robust security for residences is imperative. Traditional security measures, including window and door locks, present challenges such ...