Learning

A lot of Arduino projects start out powered by USB or wall adapters. But when a project switches to battery power, the most important design factor is how much power it uses. If you don’t carefully manage how much power …

Writing blocking code is one of the most common mistakes people make when programming Arduino. This type of code stops the microcontroller from doing anything else while it waits. This usually happens when you use delay() or loops that run …

As Arduino projects grow beyond simple sketches, code based on delay() statements and deeply nested if conditions quickly becomes hard to read, hard to debug, and unreliable. This is where state machines become essential. A state machine is a programming …

Setting up an Arduino Nano for Matter development is a key first step in making smart home devices that work with each other and are up to date. Matter introduces a single communication standard that lets devices work together across …

Arduino compilation errors usually fall into a few predictable buckets: Syntax errors: missing semicolons, braces, quotes Name/Scope errors: variables/functions not declared, wrong casing Type errors: mixing incompatible types, wrong function signatures Library errors: missing libraries, wrong versions, wrong include names …

At the heart of nearly every Arduino project are three core functions: digitalWrite() digitalRead() analogRead() Arduino interacts with the real world by turning pins on and off, reading button states, and measuring sensor values. Even though they seem simple, it’s …

The Arduino Serial Plotter is a built-in tool in the Arduino IDE that allows you to visualize live data from your Arduino board in real time. This is particularly useful when working with sensors, analog readings, or debugging data. Unlike …

EEPROM (Electrically Erasable Programmable Read-Only Memory) allows you to store data permanently on an Arduino, even when power is lost. This is useful for storing settings, calibration values, or user preferences. Basics of Using EEPROM in Arduino The EEPROM on …