Wrote new I2C topic.

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Ron Hale-Evans 2016-07-05 12:40:04 -07:00
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# I2C Read Number
Read one number from the specified 7-bit I2C address, in the specified
number format.
```sig
pins.i2cReadNumber(0, NumberFormat.Int8LE);
```
### Parameters
* ``address``: the 7-bit I2C address from which to read the number.
* ``format``: the number format. Formats include
**Int8LE**, **UInt8LE**, **Int16LE**, **UInt16LE**, **Int32LE**,
**Int8BE**, **UInt8BE**, **Int16BE**, **UInt16BE**, and
**Int32BE**.
* **Int** stands for "integer", and **UInt** stands for "unsigned integer".
* **LE** stands for "little-endian" and **BE** stands for "big-endian".
* The number in each format name stands for the number of bits in the format.
### Example
The following example reads a number in big-endian, 16-bit, unsigned integer
format from the 7-bit I2C address `32`.
```blocks
pins.i2cReadNumber(32, NumberFormat.UInt16BE);
```
### See also
[I2C](https://en.wikipedia.org/wiki/I%C2%B2C)