This is a little crash course in robotics for the case you haven’t heard so much about robotics yet. This short introduction to mobile robotics starts from a general perspective and quickly introduces fundamental concepts, such as sensors, actuators, and kinematics. We continue with a short introduction to open-loop and closed-loop control. Agent models, behavior-based robotics, and potential field control are introduced as control options particularly interesting for swarm robots. We conclude with a presentation of several hardware platforms dedicated to swarm robotics, such as the s-bot, the I-SWARM robot, Alice, and the Kilobot, among others.