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

A good way of adding complexity of features to your projects without adding complexity of wiring, is to make use of the Inter-integrated circuit (I2C) protocol. The I2C protocol is supported on all …

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 …

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

Oct 7, 2025 · On the Arduino BT, they are connected to the corresponding pins of the WT11 Bluetooth® module. On the Arduino Mini and LilyPad Arduino, they are intended for use with …

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 …

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 …

Jan 25, 2022 · See the unipolar and bipolar motor schematics for information on how to wire up your motor. The stepper is controlled by with digital pins 8, 9, 10, and 11 for either unipolar or …

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 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 …