Add ssid_add_mac_suffix: option to Captive Portal

[Domigome]

Describe the problem you have/What new integration you would like At the moment the guidelines for sharing ESPHome devices points out the option name_add_mac_suffix for the device identification once it is detected in Home Assistant, but before that, users might struggle to install more than one device at the same time, since they all use the same captive portal ssid name. While it is doable, it would be convenient to have a proposed 'ssid_add_mac_suffix' option for captive portal.

Please describe your use case for this integration and alternatives you've tried: After sharing a few devices using the same ESPHome configuration, users install all devices at one and differentiate each by its mac address on both SSID and Home Assistant Discovery devices.

Additional context Add any other context about the feature request here.

[ssieb]

Do you actually know the mac address of each device? Wouldn't you just do them one at a time anyway?

[Domigome]

Do you actually know the mac address of each device? Wouldn't you just do them one at a time anyway?

Having all devices use the same SSID is of zero help:

• You don't know how many devices are in captive mode (1?, 2?, 8?, 50?, ...?)
• In cases were we want to assign devices to different networks, we might assign the wrong one.

Users can indeed know and label their devices physically with their mac address, why not? Indeed if this feature is added I will label my devices with it.