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

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

Device Type: misc
Electrical Standard: global
Board: bk72xx
Difficulty: Chip needs replacement, 5/5

Manufacturer

Hiking TOMZN (Tuya)

Product Info

SpecValue
Rate Frequency50 or 60 Hz
Rated Current63A
Rate Voltage85~300V AC
kWH accuracyClass 1
R.M.S. accuracyClass 0.5
Starting current20 mA
WiFi network2.4GHz only
Operational temp.-25~70°C

35mm Din Rail install

Product Images

Product Image OpenCase Image TuyaMCU Image

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

PinFunctionNote
GPIO01Tuya MCU Rx
GPIO03Tuya MCU Tx
GPIO02Blue LED on ESP-12Finverted
GPIO14Blue LED on deviceinverted
GPIO16SET 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

DPSwitchNotes
16To operate Relay
11Relay on startupOFF - Restore, ON - Relay OFF

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

DPSensorMultiplyUnitDecimals
101Energy Total0.001kWh3
1Energy from Grid0.001kWh3
102Energy to Grid0.001kWh3
103Power Active0.001kW3
110Power Reactive0.001kVAr3
111Power Factor0.0013
105Frequency0.01Hz2
108So far always reported 0
109Power Flow ? Reported 4 when flow is to Grid

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

Tuya DataPoint 6 (raw, 15 bytes)

BytesSensorMultiplyUnitDecimalsParsed by MCU
13,14Voltage0.1V1
11,12Current0.001A3
06,07Power Reactive0.001kVAr3as DP110
02,03Power Active0.001kW3as DP103
00Power 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}
  platform: 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
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