MCP9808 temp sensor

One of temperature sensor used in relay boards. You can have mounted other one, so first check what hardware you have! Only one MCP9808 is supported right now.
You need to know I2C address of device you want to connect to!
Example config
Example config
mcp9808:
- id: temp
address: 0x18
Configuration variables:
- id (Optional, string, default: Address of I2C device) - ID to use to name this device in MQTT and Home Assistant
- address (Required, string) - I2C address of the device