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 |
| — | —————- | ——– |
| 101 | Energy Total | 0.001 |
| 1 | Energy from Grid | 0.001 |
| 102 | Energy to Grid | 0.001 |
| 103 | Power Active | 0.001 |
| 110 | Power Reactive | 0.001 |
| 111 | Power Factor | 0.001 |
| 105 | Frequency | 0.01 |
| 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}
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
