I made a IR remote control prototype with my Propeller One board and a tiny bread board. The three push buttons are for "forward", "turn left" and "turn right". After the startup beep sequence the bot waits for the user choice:

"Turn left" pressed starts the automatic drive mode and the bot searches light.

"Turn right" pressed starts the user manual IR control mode. So both is possible after switching on the mouse bot. Now I want to solder this onto prototype perf board. The IR control also will get a "backwards" button. And some other buttons for "special" commands like "beeeping".