One of temperature sensors used in relay boards.
You can have the other one mounted, 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!
- id: temp
- id (Optional, string, default: Address of I2C device) - uniquely identifies this device in MQTT and Home Assistant
- address (Required, string) - I2C address of the device
- update_interval (Optional, timeperiod, default: 60 seconds) - how often this sensor should update