What is IoT? Explained simply
IoT is everywhere—but what does that actually mean? What do your smart thermostat, an ESP32 prototype, a Bluetooth-enabled electric toothbrush, and a connected truck have in common? They...
Read moreWhat is an API?
APIs are everywhere What do an ESP32, ChatGPT, your weather app, and a smart home have in common? It's simple: they all use APIs. Whether it's web development, software, embedded systems...
Read morePlatformIO in VSCode – how to develop Arduino software like a pro
Many people start with the Arduino IDE – and that's perfectly fine. It's quick to set up, easy to use, and perfect for first projects. But at some point you'll come...
Read moreWhat is an oscillator? Simply explained
Without oscillators, there would be no clocks, no microcontrollers, no radios, no sounds—in short, no modern electronics. But what exactly is an oscillator? And why do we need it?
Read moreFreewheeling diode or resistor? How to protect circuits
If you have ever switched a relay or a small motor with a microcontroller, you may be familiar with this scenario: You switch off the output – and...
Read moreWhy your circuit fails in practical use - and how to make it robust
Many hobby electronics engineers know the problem: everything works perfectly on the breadboard, but as soon as the circuit is used in real life, it fails. Voltage peaks, EMC problems or a lack of...
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Microcontroller vs. microprocessor differences?
Microcontroller vs. microprocessor Anyone who takes a closer look at electronics and embedded systems will sooner or later come across the question: What is the difference between a microcontroller and a microprocessor?
Read moreWhat is a GPIO? Microcontroller basics
What is a GPIO? Microcontroller basics explained simply Whether Arduino, ESP32 or STM32 - they all have one thing in common: GPIOs. But what does GPIO actually mean and how does it...
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What is a pull-down resistor?
What is a pull-down resistor? Simply explained with an example You've already heard of the pull-up resistor - now it's time for its counterpart. It also ensures that digital...
Read moreWhat is a pull-up resistor?
What is a pull-up resistor? Explanation for beginners If you work with microcontrollers, buttons or digital inputs, sooner or later you will stumble across the term “pull-up resistor”....
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