4x4 16 Keys Matrix Array Membrane Keypad Switch 8pin Keyboard Module for Arduino Microcontroller WIshioT (Pack of 5)

today in the workshop will be working with matrix keypads we'll see how these devices work and how to easily interface them with an Arduino we'll even construct a digital combination lock with an LCD display or in the matrix today so welcome to the workshop [Music] well hello and welcome to the workshop and I hope everyone is doing well now today we are going to be working with a very simplistic component that is nonetheless very useful and that is something called a matrix keypad a matrix keypad can be used as an input device for your Arduino projects and as an input device it can provide a very nice-looking interface that is very inexpensive the keypad I'm using is literally less than one dollar in cost now a matrix keypad is very valuable when you have a number of input push buttons that you need to use on your project normally we would wire a push-button to an individual input pin o