Choose a category
Get started
Set up the device, check what’s in the box, choose a location, and pick power and network options.
Set up Home Assistant Connect AUX-2
What’s in the box
Choosing a location for Connect AUX-2
Power and network options
What you can do with Connect AUX-2
Stream synchronized audio with Sendspin, control devices over serial and Modbus, use a Z-Wave adapter over the network, and extend Bluetooth coverage.
Streaming audio with Sendspin
Controlling devices over serial (RS-232)
Using a USB-to-serial dongle
Using Connect AUX-2 with Modbus devices
Using a Connect radio adapter over the network
Using Connect AUX-2 as a Bluetooth proxy
About Connect AUX-2
How Connect AUX-2 works with Home Assistant, plus its ports, controls, LEDs, and specifications.
What Connect AUX-2 is and how it works
Ports and controls
Specifications and resources
Maintenance and troubleshooting
Update the firmware, install custom firmware, reset or remove the device, and troubleshoot problems.
Updating the firmware
Custom firmware and restoring factory firmware
Resetting and removing Connect AUX-2
Troubleshooting
For developers
Build serial and Modbus integrations and ESPHome components, and test experimental Zigbee support with a Connect ZBT-2.
Building serial and Modbus integrations
Building ESPHome components
Using a Connect ZBT-2 with Connect AUX-2