Let's Make Robots!
The Kodenshi SG-2BC reflective sensor combines a GaAs IRED with a high-sensitivity phototransistor ina¬† super-mini (4mm) ceramic package, reducing installation … Read more
Wire is the stuff which allows the electrons to move around your robot. It's the stuff which, if you try to squeeze too many electrons down it too fast, it will … Read more
What's that? In robotics, "solenoids" are a type of actuator. You have a coil (4) of enamelled wire (same stuff you find in motors and relay coils) wound loosely … Read more
Isn't that just a pot? You are forgiven for thinking you are looking at a photo of a potentiometer AKA variable resistor. That's what this looks like. However, if … Read more
Computer mice with balls contain two (or sometimes three, if the have a scroll wheel) rotary position sensors. These are not mechanical switches, but optical ones. … Read more