Here’s a nice little circuit that will drive a motor and allow you to stop its rotation, giving your robot a set of brakes. It’s part of [JM’s] post about the in’s and out’s of building ...

You can put all kinds of other components in the circuit, to be powered by the cell. Like a motor. Or you can even ... when drawing an electrical circuit diagram. The flow of electricity is ...

When planning how a circuit will function, these headings are then used to plan what the input, process and output could be. Producing a schematic drawing on a computer is far neater than drawing ...