The RCX has three input
s (for different kinds of sensor
) and three output
s (for motor
s, beepers, light
). It takes 6 AA cells (Batteries not included)
. The RCX brick that shipped in the original Robotics Invention System also took an external power adapter
, while the RCX in RIS 1.5 does not. This was a nice feature, and no-one has explained why it was removed.
The RCX communicates with the PC over infrared. 5 programs may be installed via infrared, and then run. Also, the RCX may store data in a 'datalog', for upload to the PC later.
| |A| |B| |C| | 3 inputs
| V +-----+ P | View (black), Program choice (grey)
| | lcd | |
| S +-----+ G | Stop (red), Go (green)
| |1| |2| |3| | 3 Outputs
The program choice button selects from the available programs.
The view button shows the status of the 3 inputs and outputs on the LCD
in turn, or a clock. This can be set time
or (by default) shows how long the RCX has been on.