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Overview In this tutorial, you’ll learn how to use Arduino LCD keypad shield with 3 practical projects. What You Will Learn How to set up the shield and identify the keys How to scroll text How to display special characters 1602 Arduino LCD Keypad Shield Features Displaying information in electronic projects has always been the most compelling issue. There are...

TTP229 Capacitive Touch Keypad Features Keypads are one of the most popular components that are widely used in electronics. Everybody can communicate with different systems by switches. Normally, every key occupies one digital pin of the microcontroller. But by using a 4x4 keypad you can reduce the occupied pins. With this module, you can use all 16 switches by occupying only 2 pins of the microcontroller. This 16 key capacitive touch keypad is based on the TTP229 IC. Output pins 1 to 8 are for direct swit...

MPR121 Touch Keypad Features Switches are one of the most widely used components in electronics. A keypad is a set of keys or buttons arranged in a block. This capacitor touch keypad includes 12 keys and MPR121 IC on the back of the PCB.Other features:Operating voltage: 3.3VCommunication protocol: I2COperating temperature range: -40°C to +85°C You can download the datasheet of the this module here.[wpdm_package id='20626'] MPR121 Touch Keypad Pinout This Modul...