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by alnwlsn
34 days ago
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If you are much into Arduino type things you will come across 1-wire as one of the most popular temperature sensors is a DS18B20. The only place I've run across it in the wild is inside an SGI Octane. I thought it was a battery to replace, but it was actually a "Number in a Can" iButton. It's a read only memory that contains the MAC address and some other stuff. Software gets licensed to this ROM, so if your system breaks you can take the iButton out and move it to the replacement. |
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