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Home Assistant Connect AUX-2

Device Type:misc
Electrical Standard:global
Board:esp32
Difficulty:Comes with ESPhome (1/5)
Project URL:https://github.com/NabuCasa/aux-2

Description

The Home Assistant Connect AUX-2 by Nabu Casa connects serial, USB and audio devices to Home Assistant over Ethernet or Wi-Fi. It ships with ESPHome and can be set up with Improv over Bluetooth or USB.

To re-install the factory firmware, use the web installer.

Features

  • ESP32-S3 with 8 MB flash and PSRAM
  • Ethernet (W5500), with Wi-Fi as a fallback
  • Two RS-232 ports, exposed to Home Assistant as serial proxies
  • USB host port for:
    • Home Assistant Connect ZWA-2 (Z-Wave proxy)
    • Home Assistant Connect ZBT-2 (Zigbee serial proxy)
    • CH343-based USB serial adapters, such as RS-485 dongles (serial proxy)
  • Media player with Sendspin support, through a 3.5 mm combo jack: analog line out (PCM5122 DAC) or optical S/PDIF, selected automatically
  • Bluetooth proxy
  • Grove port with switchable power
  • Status light (RGB LED) and a button for factory reset

Firmware updates

The factory firmware updates through the update entity in Home Assistant. Updates are signed, and the device verifies the signature before installing them. The factory firmware has no network OTA endpoint, so it can’t be flashed over the network until you take control of it in the ESPHome Device Builder. Taking control imports packages/aux-2.yaml, which includes ota: - platform: esphome.

Configuration

The factory configuration:

The current firmware configuration is fetched live from the upstream repository:

# Loading https://github.com/NabuCasa/aux-2/blob/main/connect-aux-2.yaml…

The core configuration, imported when you take control of the device:

The current firmware configuration is fetched live from the upstream repository:

# Loading https://github.com/NabuCasa/aux-2/blob/main/packages/aux-2.yaml…