Tutorials
PLC vs robot controller: who does what in a cell
Understand the division between PLC and robot controller, the handshake signals, fieldbus choices and integration mistakes.
Archive
Author: Jignesh Panchal
Jignesh Panchal is the founder of Jaadu Digital and author of Robotics Engineering, an India-focused robotics publication. The site uses AI-assisted research and drafting; educational guides and illustrative calculations are not claims of hands-on testing or machinery-safety certification.
Buying guides
How to calculate robot ROI and payback honestly
A practical robot ROI method: cost categories, savings that count, worked examples and the utilisation sensitivity that decides payback.
Tutorials
Isaac Sim vs Gazebo: which simulator to use in 2026
Compare Isaac Sim and Gazebo on physics, rendering, sensors, ROS 2 integration, GPU needs and workstation cost in India.
Tutorials
ROS 2 TF2 tutorial: frames, lookups and errors
Learn the TF2 frame tree, publish static transforms, look up poses in Python and fix the errors that break robot localisation.
Buying guides
Cobot vs industrial robot: which one to buy in India
Compare cobots and industrial robots on payload, speed, safety, cost in India and the applications where each actually wins.
Buying guides
Palletizing robot cost in India: cell prices and payback
Palletizing robot prices in India, throughput maths, gripper choice and payback for cobot and six-axis cells.
Buying guides
Humanoid robots in India: what is real and what they cost
What humanoid robots can do in 2026, what they cost landed in India, and the questions to ask before buying one.
Tutorials
ROS 2 migration: what changed from ROS 1 and how to plan it
ROS 1 reached end of life in 2025. Compare ROS 1 and ROS 2, see what changes in code and plan a…
Tutorials
URDF ROS 2 tutorial: describe a robot properly
Build a URDF for ROS 2: links, joints, inertia and Xacro, then check the model in RViz before trusting it in simulation.
Tutorials
ROS 2 topics, services and actions: when to use each
Topics, services and actions solve different ROS 2 problems. Learn the differences, QoS settings and the mistakes that stall a robot.