This module explains how to use 4x3 Membrane Keypad with STM32F0-DISCOVERY microcontroller board Requirements: 1. 4x3 Membrane Keypad 2. Seven segment display & 3K3ohms resistors 3. Connecting wires.
4. General purpose printed circuit board. Keypad is an array of switches. Matrix keypads are very common input devices in embedded systems. They have simple architecture and are easy to interface. One ...
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