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Rollback syntax about warning on raspi doc

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Asuki Kono
2017-01-05 15:14:17 +09:00
parent 4a2cc4faec
commit e5a49777a8
1 changed files with 4 additions and 6 deletions
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doc/user/raspi.rst
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@@ -6,9 +6,7 @@ Raspberry Pi
This instructions were tested on Raspbian Jessie. This instructions were tested on Raspbian Jessie.
Warning .. warning:: You should **never** directly connect an printer with RS232-interface (serial port) directly to
-------
You should **never** directly connect an printer with RS232-interface (serial port) directly to
a Raspberry PI or similar interface (e.g. those simple USB-sticks without encasing). Those interfaces are a Raspberry PI or similar interface (e.g. those simple USB-sticks without encasing). Those interfaces are
based on 5V- or 3,3V-logic (the latter in the case of Raspberry PI). Classical RS232 uses 12V-logic and would based on 5V- or 3,3V-logic (the latter in the case of Raspberry PI). Classical RS232 uses 12V-logic and would
**thus destroy your interface**. Connect both systems with an appropriate *level shifter*. **thus destroy your interface**. Connect both systems with an appropriate *level shifter*.