Guides, tutorials, projects and in-depth articles to help you build with Soldered products.
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I2C, SPI and UART are the three ways almost every sensor, display and module talks to a microcontroller. None of them is the best....
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An ESP32 camera is the cheapest way to put a Wi-Fi camera in a project. It takes snapshots, streams to a browser and fits...
Projects
Smart home projects are the step after blinking an LED. Instead of printing a sensor reading to the Serial Monitor, you put it on...
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RS485 is how devices talk over long wires. It carries the same serial data your Arduino already sends, but over hundreds of metres and...
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An LCD is the first screen most makers use. It is cheap, it shows text and numbers, and an I2C version connects to an...
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If you have ever connected a sensor, a display or a breakout board to an Arduino, an ESP32 or a Raspberry Pi, you have...
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If you have wired a button to an Arduino or an ESP32 and the input turned on and off by itself, the code was...
Articles
Arduino and ESP32 boards are useful on their own, but they get a lot more interesting once you connect a sensor.A sensor lets your...
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Seeed Studio is one of the best known names in maker electronics. Grove modules, XIAO boards, sensors, edge AI hardware, Raspberry Pi accessories, industrial...
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If you've ever wanted to build a robot, automate your home, or create your own electronics projects, you've probably come across Arduino.But what exactly...
Projects
Some electronics projects are useful. Others are fun because you can watch them come alive the moment you power them up. LED matrix displays...
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Circuit board components explained: A beginner's guide to PCB electronic components and their functionsPull the lid off almost any gadget and you will find...
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Arduino remains one of the most popular development platforms ever created, especially for beginners. But depending on what you're building, it isn't always the...
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Most cameras simply capture images.An AI camera goes a step further by understanding what's happening inside those images. Instead of sending every frame to...
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Waveshare sells everything from bare e-paper panels and driver boards to all-in-one boards with built-in ESP32s. This versatility is why makers return to the...
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Most displays are designed to be looked at for a moment, used, and then turned off.E-paper displays are different.They are built for information that...
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Theory is a hard sell to a nine-year-old. A light that blinks because they programmed it is not.Effective Arduino project guides for kids rely...
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Some electronic components look more important than others.A display feels exciting because you can see it. A sensor feels useful because it measures something....
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You have probably used a micro switch today without even noticing it.They are hidden inside computer mice, appliances, 3D printers, vending machines, door sensors,...
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STEM projects don't have to be complicated, expensive, or require years of programming experience. In fact, some of the best projects start with a single...
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The Raspberry Pi 5 is fast enough that the interesting question has changed. It used to be "can the Pi handle this?" Now it's...
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Everyone's first solder joint looks like a blob. That's not a sign you're bad at this. It means you haven't built the feel for...
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There is a particular satisfaction in watching a board do something because you told it to. Usually it is an LED, blinking once a...
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If you have ever seen a keyboard or PC case with LEDs that change color individually instead of all at once, you were probably...
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If you've spent any time building smart home or IoT projects with ESPHome, you've probably noticed that most tutorials focus on the native Home...
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When people think about Home Assistant dashboards, they usually think about tablets mounted to walls.And while tablets are flexible, they're not always the best...
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If you've just bought an ESP32, there's a good chance you're already asking the same question every maker asks:What should I build first? And...
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If you've started exploring ESP32 projects, you've probably noticed that most tutorials use Arduino. But Arduino isn't the only way to program an ESP32.MicroPython...
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The hardest part of owning a Raspberry Pi isn't building something with it.It's choosing what to build first because there are so many options...
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From simple obstacle-avoidance robots to industrial automation systems, distance sensors play an important role in helping devices understand the world around them.The challenge is...
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If you're getting started with electronics and programming, you'll quickly come across two popular options: Arduino and MicroPython.Both can be used to build everything...
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You'll probably start on a breadboard. Most people do. Push components in, test the circuit, pull them out. No commitment. Once the design is...
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Let's say you have a brilliant idea for a project. Maybe you want to automate your home plants or build a smart weather station....
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If you are building a smart desk calendar, an outdoor weather station, or anything that needs to run on a battery, a standard LCD...
![5 Best soldering kits [Complete guide to electronic soldering kits]](http://soldered.com/cdn/shop/articles/solder_kit_7e332c68-1a1c-435c-a409-79c7e4513c71.png?v=1787756816&width=1400)
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Soldering kits take a skill that can feel intimidating and break it into a guided build. You follow the steps, place the components, solder...
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What Is an E-paper Display?E-paper display is a screen that reflects light instead of emitting it. It looks like a printed page, not a...
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Every great electronics project starts somewhere.Maybe it's a weather station that tells you if it's going to rain. Maybe it's a smart home sensor...
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We're all pretty aware that smart homes are no longer reserved for expensive hubs and closed ecosystems. Today, pretty much anyone can build custom...
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The Raspberry Pi is one of those devices that seems to find its way into almost every maker's toolbox. From weather stations and smart...
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E-Ink displays are best known for one thing: black-and-white screens that look remarkably similar to paper.For years, that was enough. Whether you were reading...
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If you've ever connected a sensor to a development board, there's a good chance you've spent more time looking at wiring diagrams than actually...
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E-paper, LCD, and OLED work differently enough that the wrong pick can mean redesigning parts of your project later. The choice depends on how...
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Fast refresh e-paper displays are changing what's possible with e-paper technology. While traditional e-paper screens excel at displaying static information, faster refresh rates make...
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Arduino remains one of the best ways to get started with electronics, but it's no longer the only option. Today's makers can choose from...
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ESP32 boards have become the go-to choice for makers building connected devices. Whether you're creating a smart home sensor, weather station, energy monitor, or...
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Home assistants can tell you when someone rings the doorbell, when your solar panels are producing power, or when the temperature in your greenhouse...
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E-ink paper display tablets have quietly become one of the most practical display technologies for modern hardware projects. From low-power IoT dashboards to smart...
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You are a beginner with NULA boards. Or electronics? A specific module caught your eye, but you do not know how to use it?...
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WHAT IS COM PORT?COM port (Communication port) is the name for the port serial interface that can be found in a common computer(IBM compatible)....
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If you know one thing about batteries, it’s that they have one positive and one negative terminal (or pole). When connecting the battery, the positive...
Projects
Building a multi-sensor project used to mean dealing with messy wiring, address conflicts, power concerns, and hours of debugging before any useful data appeared...
Projects
Build Plant Watcher with the Soldered DeepSleep NULA ESP32-S3 to monitor light, soil moisture, temperature, and humidity. Read multiple sensors, send the data as...
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The Soldered Learning Hub is live! Projects, guides, and news updates all in one place, whether you're just starting out or working on your...
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This article explains what a load cell is and how it works. It shows how to use the HX711 amplifier to read weight values...
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Build a DVI weather station using the Soldered NULA Max RP2350 and a BME280 sensor. Connect via Qwiic and DVI, install the required libraries,...
Projects
The article explains how the GNSS GPS L86-M33 module works and how to use it with an ESP32. It covers basic setup with an...
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This article explains what stepper motors are and how they work. It covers basic motor characteristics, shows how to control a stepper motor using...
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This article explains how PIR motion sensors work, what delay time means, and how to read DOUT/SOUT outputs. It includes an Arduino serial example...
Projects
This article shows how to build a simple DIY smartwatch using the NULA Mini and an SSD1306 OLED display, explains the hardware, interface logic,...
Projects
Overview of the MAX98357 I2S digital audio amplifier and how digital amplification works. Explains I2S signals, wiring to ESP32, speaker/audio format selection, and an...
Projects
This article explains what RFID is and how it works. It shows the differences between tags, cards, and stickers, demonstrates how to read RFID...
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This article explains what the Qwiic system is, how it works, why it simplifies I2C prototyping, how to daisy-chain modules, and how to integrate...
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The article explains what PWM is and why it is used to simulate analog output with digital signals. It covers cycles, period, frequency, duty...
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This article explains what a MOSFET is, how it works, the main types, typical applications, and how to choose the right MOSFET for microcontroller...
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This article explains what a breadboard is, how it is built internally, how to use it to connect components, and what its main advantages...
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This article explains what pull-up and pull-down resistors are and why they are used in digital circuits. It shows how they prevent floating inputs,...
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This article explains what UART is, how it works, what baud rate and frames are, how start, data, parity and stop bits function, and...
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This article explains what I2C is, how it works, how devices are addressed, why pull-up resistors are needed, and how to use and troubleshoot...
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This article explains what the SPI communication protocol is and how it works. It covers signals like MOSI, MISO, SCLK and CS, explains sending...
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A Raspberry Pi I2C tutorial using the Qwiic ecosystem. It shows required hardware, how to enable I2C, connect a BME680 sensor and SSD1306 OLED,...
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This article explains what the CH340 USB-to-serial chip is and provides step-by-step instructions for installing drivers on Windows, macOS, and Linux, including how to...
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This article explains what breakout boards are, how they make small ICs and sensors easier to use, what to check before buying one, and...
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This article explains what LEDs are and how they work. It covers polarity, current and resistors, forward voltage, and different LED types such as...
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