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, …

Feb 17, 2025 · This tutorial will teach you how to use the Arduino Nano Matter to create a Matter sensor to monitor your room or workplace temperature. Temperature sensor overview

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 …

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

Oct 2, 2024 · The bar graph - a series of LEDs in a line, such as you see on an audio display - is a common hardware display for analog sensors. It's made up of a series of LEDs in a row, an analog …

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.

The Arduino TFT screen is a backlit TFT LCD screen with a micro SD card slot in the back. You can draw text, images, and shapes to the screen with the TFT library.

Oct 7, 2025 · We've also learned how the Arduino UNO R4 WiFis Qwiic connector is configured and how to make use of it to conveniently build large I2C networks of nodes for your interactive projects …