A Lightpen by Amstrad ....
Technical
Connects to the Joystick port (not to the Lightpen input on the Expansion Port).
The pin-outs are unknown?
- One pin is probably used as Light Sensor, but which?
- Other pins might be used as power supply (needing to drag some pins HIGH and others LOW by software) (or does it contain a battery)?
- There seems to be no additional button (like on Light-guns)?