One thing that we used to do with the old LEGO RCX bots, which used an IR tower to upload programs, was shield the bot with a cardboard box during the upload to prevent uploading to other bots in the classroom. Some creative shielding might work.
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- Thu Mar 24, 2016 11:00 am
- Forum: Wink Basics
- Topic: Minor compilation warning work-around
- Replies: 5
- Views: 918
I understand what you did to eliminate the warning. I am wondering what the warning message itself means. Can you elaborate? I don't have a clear understanding of the usage of extern. Thanks, Ann sketch\WinkHardware.h:249:20: warning: 'irData' initialized and declared 'extern' [enabled by default] e...