Remote
Control

Message Control
Pressing one of these buttons (1, 2, or 3)
will send a message to the RCX. To make the RCX react to this message, you
should use the RCX Sensor Watcher in the code.
Motor/Output Control
These buttons let you control the output
ports of the RCX directly. You can control one, two, or all three outputs at the
same time. For instance, by pressing A and C you can drive a module using two
motors.
If an RCX program is running, these buttons
will override the program.
Program Control
Use these buttons to run any one of the five
RCX programs.
Beeper
Press this button to make the RCX play a
beeping sound. You can use this function to check if the RCX is in range of the
remote control.
Stop
Pressing this button stops any RCX program
currently running.
Batteries Required
Two 1.5
volt, rechargeable or non-rechargeable.