Liquid Crystal Displays (LCD) with Arduino
Find out how to wire an LCD to an Arduino, and how to use the LiquidCrystal library through a set of useful examples.
Inter-Integrated Circuit (I2C) Protocol | Arduino Documentation
The Wire library is what Arduino uses to communicate with I2C devices. It is included in all board packages, so you don't need to install it manually in order to use it.
How to Wire and Program a Button | Arduino Documentation
Oct 2, 2024 · You can also wire this circuit the opposite way, with a pullup resistor keeping the input HIGH, and going LOW when the button is pressed. If so, the behavior of the sketch will be reversed, …
Servo Motor Basics with Arduino
Mar 4, 2024 · In this article, you will find two easy examples that can be used by any Arduino board. The first example controls the position of an RC (hobby) servo motor with your Arduino and a potentiometer.
Arduino and Stepper Motor Configurations
Jan 25, 2022 · Learn how to control a variety of stepper motors using unipolar / bipolar circuits with Arduino.
ADXL3xx Accelerometer | Arduino Documentation
Sep 30, 2025 · This tutorial shows you how to read from the ADXL3xx series (e.g. ADXL320, ADXL321, ADXL322, ADXL330) accelerometer and receive the values in the serial monitor of the Arduino …
Basics of Potentiometers with Arduino
Jan 25, 2022 · By passing voltage through a potentiometer into an analog input on your Arduino, it is possible to measure the amount of resistance of the potentiometer as an analog value. This article …
Wire | Arduino Documentation
Aug 5, 2025 · Browse through hundreds of tutorials, datasheets, guides and other technical documentation to get started with Arduino products.
Arduino UNO R4 WiFi Qwiic Connector
Oct 7, 2025 · We've learned about how I2C works, and how that relates to Qwiic. We've also learned how the Arduino UNO R4 WiFis Qwiic connector is configured and how to make use of it to …
LiquidCrystal_PCF8574 | Arduino Documentation
Apr 3, 2023 · A library for driving LiquidCrystal displays (LCD) by using the I2C bus and an PCF8574 I2C adapter. This library uses the original Wire library for communication.