This is what you need to add to yaml file.
I2C For Sensor
i2c:
-
id: bus_a
sda: 21
scl: 22
scan: true
End of I2C For Sensor
All Sensors
sensor:
Start of Custom Sensor
-
platform: custom
lambda: |-
auto my_sensor = new WaterLevelSensor();
App.register_component(my_sensor);
return {my_sensor};
sensors:
name: “Water Level Sensor”
unit_of_measurement: “%”
accuracy_decimals: 1