This circuit powered by photovoltaic cells was found in the November 1998 issue of Electronics Now magazine. The circuit uses two motors and can follow a line thanks to its sensors.
The basis of this project is a three-position lever switch or similar. When the switch is in the...
This physical line servo control uses components that are not currently common. The circuit is from...
This circuit was found in a Popular Electronics from the 90's. The power transistors must be...