devialet-ir

An ESP32 IR receiver to control the volume of Devialet speakers.

This project uses a IR Sensor to convert the IR signals of a remote to the following http post request:

GET http://{DEVIALET_IP}/ipcontrol/v1/systems/current/sources/current/soundControl/volume
{"volume":47}
POST http://{DEVIALET_IP}/ipcontrol/v1/systems/current/sources/current/soundControl/volume
{"volume":50}

Allowing to control the volume of a Phantom Speaker from an Apple TV Remote.

Finding the correct setup took some research as the ESP32-C6 is pretty recent and not completely supported by the tools I was using.

Prerequisites

Here is what devices were used for the project:

• An Apple TV 4K (model=AppleTV11,1;iOS=17.6)
• An Apple Siri Remote (Charging via lightning)
• A LG TV (Model 42LD420)
• A Devialet Phantom II 98dB Speaker (Link to the website)
• A Seeed Studio XIAO ESP32C6 Board (Link to the official product, The website on which I bought it)
• IR Receiver used for the build.

Start the project

• Clone the repo
• Open the devialet-ir.code-workspace with VSCode
• It will suggest you to install platformIO, do so
• While it installs, Connect the IR receiver to the board. The S (Signal) pin should go to D10 on the board, the middle pin to the 3v3, and the I pin to the GND (Ground)
• Connect the ESP32C6 Board to your computer with a USB-C cable
• The PlatformIO should now be installed
• A new tab will appear on the left bar with an alien face
• From that menu you will be able to Upload and Monitor the firmware
• edit the src/secrets.hpp file to enter your wifi credentials

Sometimes the board refused to be flashed. To fix it I had to:

• disconnect from power/computer
• stay pressed on the tiny B button next to the USB-C connector
• while still pressed reconnect to the computer

Boot sequence

• The yellow light stays ON until it is connected
• The device tries to connect to the wifi for 15s
• Once connected to the wifi, the yellow light turns off
• It then looks for the IP address of the Phantom Speaker
• The yellow light will turn on on each try
• After 10 tries, it will stop looking and blink with an error pattern if there is one
• If everything went well, the yellow light will turn off

Blinking light error pattern

# Short flashes every 0.1s (0.1s OFF - 0.1s ON)
The device was unable to connect to the wifi
=============
# Short flashes every 0.4s (0.4s OFF - 0.1s ON)
There was an error starting the network discovery to get the IP address of the Phantom Speaker