How do you interface a home-made joystick, a stepper motor or a fully fledged robot to your BBC?
How do you write the software for stepper motor control?
Step by step instruction guide in constructing a wealth of low cost gadgetry which will build a wealth of understanding of the principle of digital and analogue input and output.
Contains diagrams, parts lists & descriptions and control programs.
An excellent 124 page paper back in excellent condition.