This page documents AT commands for configuring roaming behavior in HaLow firmware 2.x modules.

Query:

AT+ROAM=?

Set Roaming:

AT+ROAM=1

(enable)

<code>AT+ROAM=0</code>  (disable)

Response:

OK

Notes:

• Roaming must be enabled only on STA devices
• Supports SSID matching modes:
• Full word match – all APs have the same SSID (≤32 characters)
• Fuzzy match – last three characters differ; SSID > 8 characters total, with common prefix + 3-character ID
• Roaming parameters are saved across power cycles

* Roaming allows STA devices to automatically switch between APs in a multi-AP network. * Ensure SSID and security keys are compatible across APs for smooth handoff. * Combine with relay configuration for extended network coverage and mobility.