Tuya Integration

ThingsBoard PE Feature

Only Professional Edition supports Platform Integrations feature.
Use ThingsBoard Cloud or install your own platform instance.

• Overview
• Tuya Integration Tutorial
  • Prerequisites
  • Tuya setup
    • Create cloud project
    • Enable Tuya message service
    • Link Tuya App Account
• Tuya Integration Configuration
  • Uplink Converter
  • Downlink Converter
  • Tuya Integration Setup
  • Rule Chain configuration
  • Uplink message
  • Tuya Smart Plug Dashboard
• Next steps

Overview

Tuya is a cloud platform that connects a range of devices via the IoT. After integrating Tuya with the ThingsBoard, you can connect, manage, communicate, process and visualize data from your devices in the ThingsBoard IoT platform.

Tuya Integration Tutorial

In this tutorial we will use a real device - Smart Plug.

Also, you can use a virtual device. Virtual devices help you to perform cloud development without an actual IoT device.

Prerequisites

The first step is to install the smart device control application (Smart Life, Tuya Smart, or other) on your mobile device and register your Smart Plug device in the application.

Tuya setup

Create cloud project

The next step is to register an account on Tuya and create cloud project.

• Go to the "Cloud" tab -> "Development". Click the "Create Cloud Project" button
• In a pop-up window, fill required fields and click "Create"
• Make additional settings in the “Authorize API Services” window and click "Authorize"
• Fill in the required fields in the "Project configuration" window, then click "Create"
• Now your cloud project is created. In this window, remember the Access ID and Access Secret values. These values will be needed during the Tuya Integration setup.

Enable Tuya message service

Enable the message service to timely receive messages about device registration, data reporting, and status change.

• Go to the "Cloud" tab -> "Message Service"
• Toggle to enable Message Service
• In the pop-up window, set up the messaging service. Configure the settings for "Message Service Type" and "Alert Contact". Click "Ok"
• Message Service enabled

Link Tuya App Account

You need to link your devices to this project using your Smart Life app account.

• Go to "Cloud" tab -> "Development". Select your project
• Navigate to the "Devices" tab -> select the "Link Tuya App Account" tab. Click "Add App Account"
• Scan the QR code with Smart Life App to authorize
• In the pop-up window, set up the device linking method and select device permission: read, read/write or read/write/manage". Click "Ok"
• Now your devices under the mobile app account have been added to the project
• Navigate to the "All Devices" tab. You can see your device added to the project

Note:
Make sure you enabled Messaging rule (filter) to receive uplinks. The very basic filter (statusReport) should be sufficient for testing purposes

• Navigate to the "Message Service" tab. Click the "Create Messaging Rules" button;
• Click the "Add Message Filtering Rule" button;
• Add new message filtering rule and click "Release Rule" button;
• Enable the messaging rule.

Tuya Integration Configuration

Uplink Converter

Before setting up a Tuya integration, you need to create an Uplink Converter which is a script for parsing and transforming the data received by Tuya integration to a format that ThingsBoard can consume.

To create an Uplink Converter, go to the Data Converters section and click Add new data converter —> Create new converter, name it “Tuya Uplink Converter” and select type Uplink. Use debug mode for now.

NOTE
Although the Debug mode is very useful for development and troubleshooting, leaving it enabled in production mode may tremendously increase the disk space, used by the database, because all the debugging data is stored there. It is highly recommended to turn the Debug mode off when debugging is done.

Choose device payload type to for decoder configuration:

One can use either TBEL (ThingsBoard expression language) or JavaScript to develop user defined functions. We recommend utilizing TBEL as it’s execution in ThingsBoard is much more efficient compared to JS.

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// Decode an uplink message from a buffer
// payload - array of bytes
// metadata - key/value object

/** Decoder **/

// decode payload to JSON
var data = decodeToJson(payload);

var deviceName = data.devId;
var deviceType = 'Tuya device';

var telemetry = [];
if (data.status != null) {
    for (var i = 0; i < data.status.length; i++) {
        var res = {};
        var code = data.status[i].code;
        var value = data.status[i].value;
        if (code == "cur_voltage" || code == "cur_power") {
            value = data.status[i].value / 10;
        } else if (code == "cur_current") {
            value = data.status[i].value / 100;
        }
        res[code] = value;
        telemetry.push(res);
    }
    
} else {
    telemetry = data;
}

var result = {
   deviceName: deviceName,
   deviceType: deviceType,
   attributes: {},
   telemetry: telemetry
};

/** Helper functions 'decodeToString' and 'decodeToJson' are already built-in **/

return result;

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// Decode an uplink message from a buffer
// payload - array of bytes
// metadata - key/value object

/** Decoder **/

// decode payload to JSON
var data = decodeToJson(payload);

var deviceName = data.devId;
var deviceType = 'Tuya device';

var telemetry = [];
if (data.status != null) {
    for (var i = 0; i < data.status.length; i++) {
        var res = {};
        var code = data.status[i].code;
        var value = data.status[i].value;
        if (code == "cur_voltage" || code == "cur_power") {
            value = data.status[i].value / 10;
        } else if (code == "cur_current") {
            value = data.status[i].value / 100;
        }
        res[code] = value;
        telemetry.push(res);
    }
    
} else {
    telemetry = data;
}

var result = {
   deviceName: deviceName,
   deviceType: deviceType,
   attributes: {},
   telemetry: telemetry
};

return result;

/** Helper functions **/

function decodeToString(payload) {
   return String.fromCharCode.apply(String, payload);
}

function decodeToJson(payload) {
   // covert payload to string.
   var str = decodeToString(payload);

   // parse string to JSON
   var data = JSON.parse(str);
   return data;
}

return result;

Downlink Converter

The Downlink converter transforming outgoing RPC message and then the Integration sends it to your device.

Create another converter with the name “Tuya Downlink Converter” and type Downlink. To see events - enable Debug.

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/** Encoder **/

var command = {};
command["code"] = msg.method;
if (msg.params == "false" || msg.params == "true") {
    command["value"] = Boolean.valueOf(msg.params);
} else {
    command["value"] = msg.params;
}

var result = {

    // downlink data content type: JSON, TEXT or BINARY (base64 format)
    contentType: "JSON",

    // downlink data
    data: JSON.stringify(command),

    // Optional metadata object presented in key/value format
    metadata: {
            deviceId: metadata.deviceName
    }

};

return result;

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/** Encoder **/

var command = {};
command["code"] = msg.method;
if (msg.params == "false" || msg.params == "true") {
    command["value"] = Boolean.valueOf(msg.params);
} else {
    command["value"] = msg.params;
}

var result = {

    // downlink data content type: JSON, TEXT or BINARY (base64 format)
    contentType: "JSON",

    // downlink data
    data: JSON.stringify(command),

    // Optional metadata object presented in key/value format
    metadata: {
            deviceId: metadata.deviceName
    }

};

return result;

Tuya Integration Setup

Go to Integrations section and click Add new integration button. Name it Tuya Integration, select type Tuya;

In this step, you can select the recently created Tuya Uplink Converter or create a new uplink data converter;

Add Tuya Downlink Converter to the integration or create a new downlink data converter;

In the last step, fill in the following fields:

• Region - specify your region;

• Environment: choose PROD or TEST. Choose PROD for real devices. Select TEST if you want to connect a virtual device to Thingsboard and test its operation before you buy it.

• Access Id and Access Key is an authorization certificate distributed by Tuya. Paste previously copied Access Id and Access Key into the integration.

Click “Add” to create an integration.

Rule Chain configuration

When integration configured and ready to use, we need to go to Rule Chains, choose “Root Rule Chain” and here create rule node Integration Downlink. Input some name here, choose earlier created Tuya integration, and tap Add.

After these steps, we need to tap on a right grey circle of rule node message type switch and drag this circle to left side of Integration Downlink. In pop-up window add “RPC Request to Device” linl, and tap “Add”. Save the Root Rule Chain.

Uplink message

Once ThingsBoard Tuya Integration has been created, you must disconnect Smart Plug from power and reconnect. The device will send an uplink message with telemetry and attributes to the integration

Go to Device Groups -> All you should find your device provisioned by the Integration. In my case it is - SmartPlug268970.

Tuya Smart Plug Dashboard

To visualize the Smart Plug data and test RPC commands, we will create the Tuya Smart Plug dashboard.

• Download the tuya_smart_plug_dashboard.json file
• Go to the Dashboard groups tab. Create dashboard group - Smart Plug and go to it.
• To import this JSON file, click the import button at the upper right corner of the dashboard group page and drag the previously downloaded file into the window. Tap Import.

• Open the Tuya Smart Plug dashboard
• Enter edit mode, click Entity aliases button and add your device to smartPlug alias

NOTE:
timeseries data keys of your device may differ from those presented. If necessary, you will need to replace them, according to the documentation for your device (for each widget).

If you have everything configured correctly, you will see Smart Plug status light (on/off) and telemetry for the last hour: voltage, power, and current.

Smart Plug status light is green. Try to switch off the Smart Plug by clicking on the On/Off Round switch

The Smart Plug status indicator turns grey. Power consumption stops.

Next steps

• Getting started guides - These guides provide quick overview of main ThingsBoard features. Designed to be completed in 15-30 minutes.

• Data visualization - These guides contain instructions on how to configure complex ThingsBoard dashboards.

• Data processing & actions - Learn how to use ThingsBoard Rule Engine.

• IoT Data analytics - Learn how to use rule engine to perform basic analytics tasks.

• Hardware samples - Learn how to connect various hardware platforms to ThingsBoard.

• Advanced features - Learn about advanced ThingsBoard features.