Rename esphomeyaml to esphome (#426)

* Rename

* Update

* Add migration

* Fix

* Fix dashboard

* Change test

* Fixes

* Code cleanup

* Fix import order

* Update

* Automate docker builds

* Shellcheck

esphome/components/i2c.py

@@ -0,0 +1,38 @@
+import voluptuous as vol
+
+from esphome import pins
+import esphome.config_validation as cv
+from esphome.const import CONF_FREQUENCY, CONF_ID, CONF_RECEIVE_TIMEOUT, CONF_SCAN, CONF_SCL, \
+    CONF_SDA
+from esphome.cpp_generator import Pvariable, add
+from esphome.cpp_helpers import setup_component
+from esphome.cpp_types import App, Component, esphome_ns
+
+I2CComponent = esphome_ns.class_('I2CComponent', Component)
+I2CDevice = pins.I2CDevice
+
+CONFIG_SCHEMA = vol.Schema({
+    cv.GenerateID(): cv.declare_variable_id(I2CComponent),
+    vol.Optional(CONF_SDA, default='SDA'): pins.input_pullup_pin,
+    vol.Optional(CONF_SCL, default='SCL'): pins.input_pullup_pin,
+    vol.Optional(CONF_FREQUENCY): vol.All(cv.frequency, vol.Range(min=0, min_included=False)),
+    vol.Optional(CONF_SCAN): cv.boolean,
+
+    vol.Optional(CONF_RECEIVE_TIMEOUT): cv.invalid("The receive_timeout option has been removed "
+                                                   "because timeouts are already handled by the "
+                                                   "low-level i2c interface.")
+}).extend(cv.COMPONENT_SCHEMA.schema)
+
+
+def to_code(config):
+    rhs = App.init_i2c(config[CONF_SDA], config[CONF_SCL], config.get(CONF_SCAN))
+    i2c = Pvariable(config[CONF_ID], rhs)
+    if CONF_FREQUENCY in config:
+        add(i2c.set_frequency(config[CONF_FREQUENCY]))
+
+    setup_component(i2c, config)
+
+
+BUILD_FLAGS = '-DUSE_I2C'
+
+LIB_DEPS = 'Wire'