Static IP support

[marvinroger]

Out of scope, DHCP is a better fit, and IP can be configured per device on router interface. Feel free to reopen with your use case if needed.

[CWempe]

I prefer DHCP, too. Unfortunately I cannot change the IP of my devices on my dhcp server.

One of the few shortcomings of the biggest (and best) DSL-Router brands in germany (www.avm.de) does not allow you to change the IP address of dhcp clients on its web interface (or elsewhere). :(

While everything works well now, it would still be neat to change the IP on the device. Maybe reopen this feature request wioth low prioroty? :) Unless I am the only one how would benefit from this feature.

[marvinroger]

Alright, then. :)

[claybar]

@CWempe:

One of the few shortcomings of the biggest (and best) DSL-Router brands in germany (www.avm.de) does not allow you to change the IP address of dhcp clients on its web interface (or elsewhere). :(

I think there is a way, although not the nicest. Once a device is connected to the router, it can be selected and the assigned IP can be reserved for future. This means subsequent connections will receive the same IP. Also, before a device is connected a IP can be reserved by pre-entering the MAC address and choosing an IP.

[CWempe]

@claybar

Also, before a device is connected a IP can be reserved by pre-entering the MAC address and choosing an IP.

I did not know this feature existed! Maybe it is new or I never noticed it. :(

Nevertheless, that solves my problem. :+1: I just need to delete the "wrong" IP and enter the new entry.

Thanks!

[marvinroger]

This was kind of surprising that you did not have this feature, well glad you found out how to use it.

[marvinroger]

Reclosing it, then!

[euphi]

There are many routers where you can't set the IP for DHCP clients.

However, I still don't see a use case for a static IP for Nodes as long as MQTT is the only communication protocol.

[marvinroger]

I agree, it could have been useful for some OTA implementations on the ESP8266, but as OTA is handled over MQTT, I don't see a use case either.

[shogsbro]

I wonder how you guys do your firmware development.

I initially used Arduino with OTA, and progressed to platformio once I realised how much better it is. Both support OTA programming, and since I use OpenWrt on my router I don't have any problem doing a static IP reservation so I can easily specify the upload target.

Do you use a shim to send the uploading firmware via @jpmens python framework for uploading?

[marvinroger]

I update via USB (512 000 bauds), it only takes like 3-4 seconds. And if I need to update over OTA, I do it over MQTT, as it is fastest in my opinion.

[shogsbro]

OK, for MQTT upload do you use a custom uploader command-line, using mosquitto_pub? It would be helpful to include documentation on this for noobs.

[marvinroger]

I don't this too often so I do use mosquitto_pub. I'll enhance the docs when everything else is done.

[johnjore]

I've just started tinkering with ESP8266's and came across this framework. Looks very good and timesaving, but I use static IP addresses for these items. I actually have DHCP setup in a HA configuration using VMs, but I want my sensors to be independant of the IT infrastructure. My other half would be less than impressed if I setup the ESP to control things like sockets and switches and the ESXi server, or its iSCSI storage, dies and the sockets/switches stopped working... (This has already happend, the storage controller died and it took 4 weeks to get it replaced under warranty. I now have a spare on a shelf...)

Yes, I could setup another DHCP on RaspPi or a spare WLAN box, but why add more infrastructure / components when I can just configure each device with a static IP and not rely on DHCP or DNS?

I've added

void onHomieEvent(HomieEvent event) {
  switch(event) {
    case HomieEvent::WIFI_CONNECTED:
      WiFi.config(ip, gw, netmask);
      Serial.print("IP Address: ");
      Serial.println(WiFi.localIP());
    break;

Having the IP as a configuration setting would be better and maybe one day I modify this to read the IP from a file on the SPIFFS, but best if Homie framework itself supported the use of static IPs.

Just my 2c and please keep up the good work.

JJ

[monster1025]

It will be great to have option to specify static IP - because in low-power mode (when powered on battery) - wake up with DHCP takes ~2sec, but with static ip is only 200ms (and it saves battery power).

[marvinroger]

Implemented in https://github.com/marvinroger/homie-esp8266/pull/327 👍