The ESP32 has become the go-to microcontroller for robotics builders, students, and hobbyists in . If you have spent any time in robotics forums, you have probably seen this little chip mentioned over and over. But what exactly is it, and why does everyone reach for it when building robots? In this guide, I will … Read more

I get this question almost every week from readers who are upgrading from an Arduino Uno or Nano to something more capable. The short answer is yes, you can run Arduino code on an ESP32, and in most cases the same sketch will work after a few small adjustments. The longer answer involves a software … Read more

NVIDIA Jetson is a family of embedded computing boards built specifically for edge AI and robotics. Each module packs GPU-accelerated processing power into a compact, low-power package that runs full Ubuntu Linux and the JetPack SDK. If you have ever wondered how a drone recognizes objects in real time or how a warehouse robot navigates … Read more

If you have ever wired a sensor to an Arduino, flashed firmware to an ESP32, or watched a robot’s IMU stream data to its main controller, you have used I2C, SPI, or UART. These three protocols carry nearly every byte of data inside embedded systems, and choosing the wrong one can leave you debugging ghost … Read more

Edge AI in robotics is the practice of running artificial intelligence models directly on a robot’s onboard hardware, rather than sending sensor data to a remote cloud server for processing. This local processing approach lets robots perceive their surroundings, recognize objects, and make decisions within milliseconds, even when internet connectivity is unreliable or completely absent. … Read more

GPIO pins are the physical bridge between your code and the real world. If you have ever wanted a microcontroller to turn on a light, read a temperature sensor, or drive a motor, GPIO pins are how that actually happens. When I first picked up a Raspberry Pi, I stared at those 40 metal pins … Read more

A real time operating system in robotics is the software layer that decides when every sensor reading, motor command, and safety check runs. If your robot’s motor controller must respond within 2 milliseconds to prevent a collision, you cannot rely on a desktop operating system that may pause for hundreds of milliseconds during background tasks. … Read more

You plug in your Arduino, open the IDE, go to Tools, and the Port menu is greyed out or empty. Sound familiar? The Arduino port not found error is the single most common issue that stops beginners and experienced makers alike from uploading code to their boards. I have spent years working with Arduino boards … Read more

If you have ever uploaded code to an Arduino using a USB cable and wondered why it just works without a dedicated programming tool, you have a bootloader to thank. A bootloader on a microcontroller is the small piece of firmware that makes this possible, acting as a bridge between power-on and your main application … Read more

A Raspberry Pi GPIO pin can handle a maximum of 16mA per pin, and the entire 3.3V rail that powers all GPIO pins can only deliver 50mA on older 26-pin boards or 100mA on the modern 40-pin models. Exceeding either of those numbers risks permanent damage to the Broadcom SoC, which is why every Raspberry … Read more