Wireless Install

ESPHome
1

I am trying to understanding how ESPHome → Install → Wirelessly works.

For my test.yaml device, I can get these to work:

  • Plug into this computer
    • This impressed me as this computer is on a different LAN than the computer running Homeassistant/ESPhome,.
  • Manual download (and then flash in with USB to TTL interface)

This will not work (expected)

  • Plug into the computer running ESPHome dashboard
    Note: the compter running ESPHome dashboard is NOT on same LAN as the ESPHome device

If I try:

  • Wirelessly
    Get these errors:
INFO Successfully compiled program.
INFO Resolving IP address of test.local
ERROR Error resolving IP address of test.local. Is it connected to WiFi?
ERROR (If this error persists, please set a static IP address: https://esphome.io/components/wifi.html#manual-ips)
ERROR Error resolving IP address: Error resolving address with mDNS: Did not respond. Maybe the device is offline., [Errno -5] No address associated with hostname

My assumption is that the computer trying to resolve test.local is the (remote) computer running the ESPHome dashboard; not the computer I am sitting at (which IS on the same LAN as my test device).

Can someone confirm?

If so … then some sort of hint that Wireless OTA installations will not work if the Device is not on same LAN as the computer running Homeassistant/ESPHome.

2

mDNS does not work across subnets, which is why it doesn’t resolve. If you can still physically plug it in to a computer follow the advice and set a static IP address.

3

Nick,

You are confirming what I worked out: Install->Wireless does not work unless the Device is on same subnet as the computer running ESPhome.

I will see if I can raise a documentation issue to make that clear.

4

Well it does if esphome knows what the IP address is.

So you can forward mDNS packets through your firewall, or you can do what I suggested and set the address in your esphome yaml file.

5

I also have issues with OTA, it seems not to work on wired ESP’s.

My work around, enable web-interface, compile/download bins locally, and use web-interface to upload bins :wink:

This would also work on esp’s on a different subnet :yum: