Hello friends, I hope you all are doing well. Welcome to the next tutorial of our Raspberry Pi 4 programming course. In the previous lecture, we interfaced LCD 16x2 with Raspberry Pi 4. Today, we will interface a keypad 4x4 to Raspberry Pi 4. In embedded projects, a keypad is used to get user input i.e. calculator, ATM keypad etc. Different types of Keypads are available i.e. 4x4, 4x3 etc.
<img src="https://images.theengineeringprojects.com/image/main/2023/05/interface-44-keypad-with-pi-4-1.jpg" alt="Interface 4x4 Keypad With raspberry Pi 4. keypad with raspberry pi ...