Home Assistant Connect AUX-2

Description

• Key messages

  • Note: A Home Assistant system is required to connect and control devices with Connect AUX-2.
  • 🧰 THE SMART HOME MULTI-TOOL – audio, serial, Z-Wave, and Bluetooth, all at the same time. Just plug it in, and Home Assistant’s wizard helps you set it up.
  • ⚡POWERFUL OPTIONS – power and data over a single Power over Ethernet (PoE) cable, or use USB-C power with Wi-Fi/Ethernet.
  • 🎶 WHOLE-HOME SYNCED AUDIO – CD-quality analog or optical audio for your Hi-Fi or receiver, in sync with your smart speakers, and ready for Music Assistant.
  • 🎛️ ADVANCED CONTROL – 2× RS-232 and an RS-485* let you control your TV, receiver, or projector even in standby, plus other serial gear. *RS-485 adapter sold separately.
  • 📡 CONNECT ANYWHERE – move your Z-Wave network (Connect ZWA-2) to the best spot in your home. Adapter sold separately.
  • 📶 ROCK-SOLID BLUETOOTH – a dedicated antenna brings Bluetooth smart home devices* into Home Assistant over a stable wired connection (*Bluetooth audio is not supported).
  • 🛠️ BUILT TO BE TINKERED WITH – Built on ESPHome and easy to take apart. Ready to go out of the box, or customize it to your needs.
  • ✅ RELIABLE TO THE CORE – Built by Nabu Casa, providing dedicated support and years of software updates.
  • 🏠 FUNDING HOME ASSISTANT – Every purchase funds the development of Home Assistant.

  Key features

  • In the box: Connect AUX-2, Warranty and Safety Information leaflet, Home Assistant sticker. USB-C and Ethernet cables not included.
  • Supported features: Synchronized whole-home audio with Music Assistant (Sendspin), Home Assistant media playback, RS-232 serial control, RS-485 via USB adapter (sold separately), Z-Wave via Connect ZWA-2 (sold separately), Bluetooth LE proxy.
  • Power and network: Power over Ethernet (802.3af or better) or USB-C, and Ethernet or Wi-Fi.
  • Chips inside: ESP32-S3 (SoC), TI PCM5122 (audio DAC), and W5500 (Ethernet controller).

  Specifications

  Product
  Model No.	NC-AUX-9758
  Conformity	CE, FCC, RCM
  FCC-ID	2A8ZE06
  Origin	Made in China
  Product details
  SoC	ESP32-S3R8 8 MB PSRAM, 8 MB flash
  Audio DAC	TI PCM5122 112 dB SNR
  Ethernet controller	W5500
  Power	USB-C, 5 V DC, 2 A Power over Ethernet (802.3af or better)
  Typical power draw	Under 1 W
  Audio
  Only one audio output can be used at a time.
  Output	3.5 mm analog or optical (S/PDIF) Output only
  Analog audio	16-bit / 48 kHz stereo
  Digital audio	16-bit / 48 kHz stereo PCM Lossless
  Codecs	FLAC, MP3, WAV
  Whole-home audio	Synchronized via Music Assistant (Sendspin)
  Serial and USB
  Serial ports	2× 3.5 mm RS-232 (±5 V) TX/RX switch
  USB-A	Connect ZWA-2 (Z-Wave) Waveshare USB-to-RS-485 adapter (sold separately)
  Connectivity
  Wi-Fi	2.4 GHz, 802.11b/g/n
  Bluetooth	Bluetooth 5 LE Proxy: up to 3 active connections
  Ethernet	Power over Ethernet (802.3af or better) Ethernet with USB-C power
  Software
  Platform	Built for Home Assistant Built on ESPHome
  Bootloader	Unlocked, accepts custom firmware
  Device characteristics
  Dimensions & weight	106 x 63 x 25 mm, 104 g In box: 110 x 72 x 28 mm, 136 g
  Enclosure material	Polycarbonate plastic Colors: white and semi-transparent
  Environmental operating conditions	Indoor use only 0 °C to 65 °C 32 °F to 149 °F Humidity: non-condensing Keep in dry, not excessively dusty, environment to avoid damage to the unit. Do not leave the unit in direct sunlight or near any heat source, as this can cause overheating.