If you have ever walked through a modern factory and watched a robotic arm pick, place, and weld in perfect rhythm, you have seen the result of a quiet conversation. That conversation happens between the robot controller and a programmable logic controller, and it is one of the most important conversations in industrial automation. I … Read more
Humanoid robots balance by using a constant feedback loop: IMU sensors and force/torque sensors measure the robot’s orientation and ground contact forces, a control algorithm computes the deviation of the center of mass from the support polygon, and joint actuators adjust hundreds of times per second to keep the Zero Moment Point (ZMP) inside the … Read more
How do humanoid robots walk? The short answer is that they coordinate dozens of sensors, motors, and software layers hundreds of times per second to keep their center of mass over a support polygon roughly the size of a single shoe. I have spent years digging into this topic, and the deeper I go, the … Read more
A humanoid robot is a machine built to look and move like a human body, typically featuring a head, a torso, two arms, and two legs. We have tracked humanoid robotics for over a decade on Smashing Robotics, and feels like the year the technology stopped being a research demo and started showing up on … Read more
MQTT (Message Queuing Telemetry Transport) is a lightweight, publish-subscribe messaging protocol designed for connecting IoT devices and robots over unreliable networks with minimal bandwidth. When we talk about MQTT robotics, we are talking about the de facto standard for moving data between robots, sensors, dashboards, and cloud systems. Robots need a way to talk. Whether … Read more
Our team has spent the last decade integrating PLCs and robot controllers on factory floors, and the most common question we still hear from new engineers is the one driving this guide. A programmable logic controller (PLC) is a ruggedized industrial computer designed to control manufacturing processes such as assembly lines, robotic cells, and automated … Read more
Robot calibration software is a specialized tool that identifies and corrects geometric errors in a robot’s kinematic model so that the machine reaches positions it was never quite hitting from the factory. In simple terms, the software measures where the robot actually goes, compares that to where its controller thinks it should go, and then … Read more
A digital twin in robotics is a real-time virtual replica of a physical robot that stays synchronized with its sensor data, behavior, and environment. Instead of guessing how a robot will perform, engineers can run experiments, train AI models, and catch failures inside a simulator that mirrors the real machine down to the last joint … Read more
If you’ve ever wondered how a robot decides where to move, you’ve landed in the right place. Path planning is the brain behind every autonomous system, and two algorithms dominate the conversation: A* (A-Star) and RRT (Rapidly-exploring Random Tree). I work with both regularly in robotics projects, and each one has clear strengths, clear weaknesses, … Read more
You spend three days training a quadruped in simulation. Reward curves look great, the robot walks smoothly, and your video clip is ready to post. Then you flash the policy to the real hardware, and the robot immediately falls over, twitches, or wanders into a wall. If that scene feels familiar, you have hit the … Read more