Add the WeiKai SPI/I2C UART/IO Expander components to esphome (#5218)

Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>

esphome/components/wk2204_i2c/__init__.py

@@ -0,0 +1,30 @@
+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import i2c, weikai
+from esphome.const import CONF_ID
+
+CODEOWNERS = ["@DrCoolZic"]
+DEPENDENCIES = ["i2c"]
+AUTO_LOAD = ["weikai", "weikai_i2c"]
+MULTI_CONF = True
+
+weikai_i2c_ns = cg.esphome_ns.namespace("weikai_i2c")
+WeikaiComponentI2C = weikai_i2c_ns.class_(
+    "WeikaiComponentI2C", weikai.WeikaiComponent, i2c.I2CDevice
+)
+
+CONFIG_SCHEMA = cv.All(
+    weikai.WKBASE_SCHEMA.extend(
+        {
+            cv.GenerateID(): cv.declare_id(WeikaiComponentI2C),
+        }
+    ).extend(i2c.i2c_device_schema(0x2C)),
+    weikai.check_channel_max_4,
+)
+
+
+async def to_code(config):
+    var = cg.new_Pvariable(config[CONF_ID])
+    cg.add(var.set_name(str(config[CONF_ID])))
+    await weikai.register_weikai(var, config)
+    await i2c.register_i2c_device(var, config)