.RCX
Syntax .RCX list 
 
Explanation The .RCX command is a low-level interface to the RCX Brick. It sends the contents of its input list, which are byte values between 0 and 255, and sends them to the RCX. The RCX reply is output as byte values between 0 and 255.

This command is intended for those who wish to communicate with the RCX directly, bypassing Logo completely. The format of the opcodes and values is not part of this documentation. Look here for more information.

Example .RCX [#18]
Result: 239
.RCX [#12 13 0 0]
Result: 18 0

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