If you have ever watched a robotic arm stop exactly at its home position or seen a 3D printer know when it reached the edge of its rail, you have witnessed a limit switch in action. These small electromechanical components are among the most reliable and widely used sensors in all of robotics. They tell … Read more
A robot bill of materials is the complete, itemized list of every part, component, and material needed to build a robot from scratch. I created my first robot BOM years ago on a yellow legal pad, and I underestimated the project cost by 40 percent. After that lesson, I learned that a well-structured bill of … Read more
Few things are more frustrating than pressing the power button on your robot and getting absolutely nothing back. I have been there, staring at a silent Roomba at 7 a.m. before guests arrive, convinced the unit is dead. Most of the time, it is not. This guide on how to troubleshoot a robot that will … Read more
If you have ever stood in front of a wall of development boards wondering which one fits your project, you are not alone. The microcontroller vs single board computer question trips up nearly every beginner in electronics and robotics. The two look similar, both have GPIO pins, and both can blink an LED within minutes … Read more
A Raspberry Pi is a credit card-sized single-board computer that runs a full Linux operating system and connects directly to motors, sensors, and cameras through its 40 GPIO pins. In robotics, it serves as the central brain of a robot, handling everything from basic motor control to advanced computer vision and AI processing that a … Read more
What is an Arduino and how does it work? In short, it is an open-source electronics platform built around a small programmable circuit board that reads inputs (like a button press or a temperature reading), runs code you wrote on your computer, and controls outputs (like LEDs, motors, or relays) based on that code. By … Read more
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