Prowler by David Buckley, in Sinclair Projects, Aug/Sep & Dec/Jan 1983. Prowler is a low-cost, expandable micro robot vehicle, controlled by a host computer. "So far the available robotic add-ons have needed either complex software to interface them to a home computer or have been too costly, or too big. The BBC Buggy costs more than £100 and even Zeaker, the latest of the add-ons, costs slightly more than £50. Projects Prowler in its first stage of development should cost about £20. Prowler consists of a converted remote-controlled s-scale tank kit, with a circuit board holding some electronics to control the motors, lights, horn and later some bump sensors." – Prowler control adds movement to the ZX81, Sinclair Projects















