i2c: example of using optional params

Signed-off-by: deadprogram <[email protected]>
nitiansky · Feb 10, 2017 · 74d9dc4 · 74d9dc4
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commit 74d9dc4
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diff --git a/drivers/i2c/README.md b/drivers/i2c/README.md
@@ -29,3 +29,11 @@ Gobot has a extensible system for connecting to hardware devices. The following
 - Wii Nunchuck Controller
 
 More drivers are coming soon...
+
+## Using A Different Bus or Address
+
+You can set a different I2C address or I2C bus than the default when initializing your I2C drivers by using optional parameters. Here is an example:
+
+```go
+blinkm := i2c.NewBlinkMDriver(e, i2c.WithBus(0), i2c.WithAddress(0x09))
+```