Hiking DDS238-1-W1 WiFi Single Phase 63A Energy Meter

Manufacturer

Hiking TOMZN (Tuya)

Product Info

Spec	Value
Rate Frequency	50 or 60 Hz
Rated Current	63A
Rate Voltage	85~300V AC
kWH accuracy	Class 1
R.M.S. accuracy	Class 0.5
Starting current	20 mA
WiFi network	2.4GHz only
Operational temp.	-25~70°C

35mm Din Rail install

Product Images

Device button (named SET) wired to Tuya MCU. Load toggling happens on tripple SET key pressing.

Flashing info

Originally device equipped with WB3S module. Module replaced with ESP-12F and following config provided.

ESP-12F must be flashed before installing into device as RX/TX pins wired to Tuya MCU. 10 kOm resistor additionally to be soldered between GND and GPIO15 pins (SMD 0805 is a good choice).

Device case is secured by screws, but also glued in some places. Then opened - PCB can be easily detached from.

ESP GPIO Pinout

Pin	Function	Note
GPIO01	Tuya MCU Rx
GPIO03	Tuya MCU Tx
GPIO02	Blue LED on ESP-12F	inverted
GPIO14	Blue LED on device	inverted
GPIO16	SET long press (>3 sec.)	inverted

Tuya Component Output

Tuya:
  Datapoint 16: switch (value: OFF)
  Datapoint 6: raw (value: 00.00.00.00.00.00.00.00.03.E8.00.00.00.09.47 (15))
  Datapoint 1: int value (value: 3)
  Datapoint 101: int value (value: 3)
  Datapoint 102: int value (value: 0)
  Datapoint 11: switch (value: OFF)
  Datapoint 13: int value (value: 0)
  Datapoint 107: int value (value: 0)
  Datapoint 109: int value (value: 0)
  Datapoint 17: raw (value: 00.00.00.00.00.00.00.00.00.00.00.64.00.01.0E.00.00.AA.00.00.00.00.00.0A.00.00.00.00.00.00 (30))
  Datapoint 18: raw (value: 00.05.00.64.00.05.00.1E.00.3C.00.00.00.00.00.00.00 (17))
  Datapoint 9: bitmask (value: 0)
  Datapoint 108: string value (value: 000000000000)
  Datapoint 103: int value (value: 0)
  Datapoint 110: int value (value: 0)
  Datapoint 111: int value (value: 1000)
  Datapoint 105: int value (value: 5001)
  GPIO Configuration: status: pin 26, reset: pin 14
  Product: '{"p":"i55reuttymjocx0j","v":"1.0.0","m":2}'

Tuya DataPoints

DP	Switch	Notes
16	To operate Relay
11	Relay on startup	OFF - Restore, ON - Relay OFF

Relay is driven by Tuya MCU. ESP restart will not affect state of Relay !

DP	Sensor	Multiply	Unit	Decimals
101	Energy Total	0.001	kWh	3
1	Energy from Grid	0.001	kWh	3
102	Energy to Grid	0.001	kWh	3
103	Power Active	0.001	kW	3
110	Power Reactive	0.001	kVAr	3
111	Power Factor	0.001		3
105	Frequency	0.01	Hz	2
108	So far always reported 0
109	Power Flow - Reported 4 when flow is to Grid

Report negative "Power Active" when power flow is to Grid.

Tuya DataPoint 6 (raw, 15 bytes)

Bytes	Sensor	Multiply	Unit	Decimals	Parsed by MCU
13,14	Voltage	0.1	V	1
11,12	Current	0.001	A	3
06,07	Power Reactive	0.001	kVAr	3	as DP110
02,03	Power Active	0.001	kW	3	as DP103
00	Power Flow Direction: 00 - from Grid, 01 - to Grid

Basic Configuration

# Basic Config
---
substitutions:
  device_name: "energy-meter"
  friendly_name: "Energy Meter"

esphome:
  name: ${device_name}
  friendly_name: ${friendly_name}

esp8266:
  board: esp12e

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_pass

  on_connect:
    - output.turn_on: tuya_led_wifi
  on_disconnect:
    - output.turn_off: tuya_led_wifi

logger:
  baud_rate: 0

api:

ota:
  - platform: esphome

uart:
  rx_pin: GPIO03
  tx_pin: GPIO01
  baud_rate: 9600

tuya:
  on_datapoint_update:
    - sensor_datapoint: 6
      datapoint_type: raw
      then:
        - lambda: |-
            ESP_LOGD("main", "on_datapoint_update %s", format_hex_pretty(x).c_str());
            id(voltage).publish_state((x[13] << 8 | x[14]) * 0.1);
            id(current).publish_state((x[11] << 8 | x[12]) * 0.001);

#            id(power_active).publish_state((x[02] << 8 | x[03]) * 0.001);   # Power Active   in kW   - DP103
#            id(power_reactive).publish_state((x[06] << 8 | x[07]) * 0.001); # Power Reactive in kVAr - DP110

output:
  - platform: gpio
    pin: GPIO14
    id: tuya_led_wifi
    inverted: True

switch:
  - platform: "tuya"
    id: sw_relay
    name: "Switch"
    switch_datapoint: 16

  - platform: "tuya"
    name: "Restore on startup"
    switch_datapoint: 11
    inverted: True

binary_sensor:
  - platform: gpio
    pin:
      number: GPIO16
      inverted: True
    name: "SET long press"

sensor:
  - platform: template
    id: voltage
    name: "Voltage"
    device_class: voltage
    unit_of_measurement: V
    state_class: measurement
    accuracy_decimals: 1

  - platform: template
    id: current
    name: "Current"
    device_class: current
    unit_of_measurement: A
    state_class: measurement
    accuracy_decimals: 3

  - platform: "tuya"
    name: "Frequency"
    sensor_datapoint: 105
    device_class: frequency
    unit_of_measurement: Hz
    state_class: measurement
    accuracy_decimals: 2
    filters:
      - multiply: 0.01

  - platform: "tuya"
    id: power_active
    name: "Power Active"
    sensor_datapoint: 103
    device_class: power
    unit_of_measurement: kW
    state_class: measurement
    accuracy_decimals: 3
    filters:
      - multiply: 0.001

  - platform: "tuya"
    id: power_reactive
    name: "Power Reactive"
    sensor_datapoint: 110
    device_class: power
    unit_of_measurement: kVAr
    state_class: measurement
    accuracy_decimals: 3
    filters:
      - multiply: 0.001

  - platform: "tuya"
    name: "Power Factor"
    sensor_datapoint: 111
    device_class: power_factor
    state_class: measurement
    accuracy_decimals: 3
    filters:
      - multiply: 0.001

  - platform: "tuya"
    name: "Energy"
    sensor_datapoint: 101
    device_class: energy
    unit_of_measurement: kWh
    state_class: total_increasing
    accuracy_decimals: 3
    filters:
      - multiply: 0.001

  - platform: "tuya"
    name: "Energy from Grid"
    sensor_datapoint: 1
    device_class: energy
    unit_of_measurement: kWh
    state_class: total_increasing
    accuracy_decimals: 3
    filters:
      - multiply: 0.001

  - platform: "tuya"
    name: "Energy to Grid"
    sensor_datapoint: 102
    device_class: energy
    unit_of_measurement: kWh
    state_class: total_increasing
    accuracy_decimals: 3
    filters:
      - multiply: 0.001