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docs: added 1-Wire section to known limitations list

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Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
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Mihai Tudor Panu 2016-10-31 13:23:47 -07:00
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@ -61,6 +61,18 @@ such sensors and known workarounds if they exist.
* **Adafruit Motor Shield** (1438) is not detected on the I2C bus when
connected to the Intel Edison with an Arduino breakout.
#### One Wire Sensors
Please note that our 1-Wire protocol implementation is only compatible with
Dallas 1-Wire devices and uses both the RX and TX pins of a UART bus for
communication. It will also require the following external circuit:
![1-Wire Circuit Diagram](images/1wire.png)
The principle of operation is discussed [here]
(https://www.maximintegrated.com/en/app-notes/index.mvp/id/214).
This affects the **DS18B20**, **DS2413** and **DFREC** drivers.
#### Other Sensors
* **MLX90614** is not compatible with the Intel Galileo due to the inability