DALI device control via MQTT

Do you like our blog? Support Us:

DALI device control via MQTT

mqtt-dali.png

In this article, we'll show how to handle control of DALI devices using the MQTT protocol. We'll use a commercial converter to do it. If anyone knows how to handle this gracefully on the open platform as Arduino, we'd be happy to share here!

Hardware

DALI light or tape, preferably 24V

DALI driver - dimmer or switch

DC 24V Source

HD67941-B2 - DALI / MQTT converter from ADFWEB

Pi-Home - if you don't have it, see How to section under Smart Home

Software

OpenHAB

SW67941

Application

MQTT

Install Pi-Home and get the MQTT broker up and running as described in How to. Test that the MQTT broker is operational. Connect via SSH in two terminal windows:

First Window - Publish MQTT Message

mosquitto_sub -h localhost -t 'DALI' -u 'openhabian' -P 'yourpassword'

Second window - run the following code to see the result if the message is intercepted

mosquitto_pub -h localhost -t 'DALI' -m '{"channel": 3,"value": 230}' -u 'openhabian' -P 'yourpassword'

In this case you should see in first window:

{"channel": 3,"value": 230}

DALI

We connect the DALI/MQTT converter to the 24 V power source and connect it to the DALI bus (in this example, the DALI dimmer that powers the LED belt connected with green lines). The DALI driver will also want external power supply according to the light voltage. See the wiring diagram on our test system below.

Schéma DALI - MQTT

When plugged in, we turn on the power supply and plug a cable into the LAN converter. Under Windows (unfortunately) we will install a program from ADFWEB - SW67941. Use this program to configure the converter. After running the program, choose Set Communication and fill in the MQTT part and section for the LAN correctly. In our case, we don't use Wifi. See example below:

MQTT-DALI Communication

Next go to the MQTT Set topic. Here we fill only Topic to receive commands from MQTT in the MQTT Subscribe tab. See below.

MQTT-DALI Set topic

After the correct settings, upload the code to the converter via Update Device UDP. Only the configuration is sufficient.

MQTT-DALI Configuration

Functionality validation

Now all you have to do is type command in the SSH on raspberry Pi, e.g.:

mosquitto_pub -h localhost -t 'DALI' -m '{"channel": 1,"value": 130}' -u 'openhabian' -P 'yourpassword'

which should dim the light (Device ID 1) from 255 to 130. If you would like to see directly how many devices are in DALI and with which IDs, you can use the software from ADFWEB - Test DALI.

After this simple test, you can create items in OpenHAB as you want and use the MQTT to dim, on/off or set rules to schedule various actions.

Rate the article:

Support Us:

Add comment:

Add comment

Newest articles in blog

Tailscale - remote access without public IPRating: 90%

The Tailscale service solves access between individual devices if you don't have a public IP address. It's free for one user with support for up to 100 devices. We'll show you how to install Tailscale on a Raspberry Pi that you'll have at home and on a client (Android, iPhone) from which you'll want to access the home Raspberry Pi. Our example will be remote access to OpenHAB running on a Raspberry Pi. However, the same setup applies to many other applications - home NAS, PiHole, Home Assistant, Domoticz, NextCloud, and others.

Shelly vs OpenHABRating: 90%

The Shelly brand is known for its products that primarily communicate over WiFi, including smart plugs, relay switches, blinds control relays, and many other devices. One of the advantages for deployment is the ability to both read and control these devices using the universal MQTT protocol. Across existing add-ons for both OpenHAB and Home Assistant, we will demonstrate how to use Shelly devices without installing any additional extensions.

Victron vs Smart HomeRating: 0%

In this post, we will show you how to retrieve information from a photovoltaic power plant by Victron. We will connect to the Cerbo unit via MQTT. Based on these values, we can control various appliances (heating, boiler, etc.) and prevent the battery from being drained when they don't need to be.

Smart Home vs GoodWeRating: 50%

In the post, we will demonstrate step by step how to communicate directly with the GoodWe inverter in a smart home setup and obtain real-time information (unlike the SEMS portal). This information is essential if we want to react to current parameters in a smart home, such as activating additional cooling or controlling a socket with a various load.

Voice control of the houseRating: 60%

In this article, we will connect the Amazon Echo Dot voice assistant with open source home automation. We won't be using OpenHAB Cloud, so everything runs locally. In this case, a few additional settings are necessary, but the result is worth it!

Basics - Winbox, DHCPRating: 68.8%

In this series, we will look at the step-by-step setup of MikroTik devices for home users or a small business (up to 25 people). In the first article, we will focus on the initial setup - we will download Winbox and set up DHCP for the primary network and guest network. Similarly, we will also adjust the WiFi settings.

Alarm from existing PIR sensors in a smart home.Rating: 0%

In a your smart home, PIR sensors may not only be used to switch lights on and off based on motion, it is possible to utilize these sensors to detect the presence of motion in a particular room. This information can be used to create a relatively reliable uncertified home security system. In this guide, you will find the logic for how this can work in the OpenHAB software in our model smart home.

NFC tags in smart homeRating: 80%

NFC (Near Field Communication) tags are small plastic or paper stickers that can be used to automate various functions in the smart home. In this article, we will show you examples of use and a guide on how to write an action on an NFC tag using a mobile phone.