KC868-a16 XY-MD02 SHT20

[silver_kruf]

Good day. I ordered a temperature and humidity sensor, I'm trying to connect it, but the sensor doesn't respond. Maybe I'm doing something wrong. I connected it via USB, and also via KC868-a16

[admin]

disconnect with KC868-A16, let USB-RS485 adapter connect to sensor to test firstly.

[silver_kruf]

disconnect with KC868-A16, let USB-RS485 adapter connect to sensor to test firstly.

This was done at the very beginning. Look at the photo carefully!

[silver_kruf]

# Config Modbus
modbus:
uart_id: uart_modbus
id: modbus1

modbus_controller:
- id: modbus_sensor
address: 0x01 # device address
modbus_id: modbus1

sensor:
- platform: modbus_controller
modbus_controller_id: modbus_sensor
name: "RS485 Temperature Sensor"
id: temperature_sensor
address: 0x0001
register_type: read
value_type: U_WORD
unit_of_measurement: "°C"
accuracy_decimals: 1
filters:
- lambda: if (x < 10000) return x * 0.1; else return -1 * (x - 10000) * 0.1;

- platform: modbus_controller
modbus_controller_id: modbus_sensor
name: "RS485 Humidity Sensor"
id: humidity_sensor
address: 0x0002
register_type: read
value_type: U_WORD
unit_of_measurement: "%"
accuracy_decimals: 1
filters:
- multiply: 0.1


Теперь работает!

[admin]

you can try to hold on the RESET button of sensor, hold on 5 seconds, release it , will reset the sensor, then the RS485 address will be set to 1