Find out how to wire an LCD to an Arduino, and how to use the LiquidCrystal library through a set of useful examples.

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.

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, …

Aug 5, 2025 · Browse through hundreds of tutorials, datasheets, guides and other technical documentation to get started with Arduino products.

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 …

Jan 25, 2022 · Learn how to control a variety of stepper motors using unipolar / bipolar circuits with Arduino.

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 …

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.

Oct 7, 2025 · In addition to the specific functions listed below, the digital pins on an Arduino board can be used for general purpose input and output via the pinMode (), digitalRead (), and digitalWrite () …

Oct 2, 2024 · It doesn't matter which pins of the microcontroller you connect the rows and columns to, because you can assign things in software. Connected the pins in a way that makes wiring easiest. A …