static IP addres on ESP8266-12F

[espruino-discuss]

Posted at 2016-12-05 by MSol

Hi,

Could you please help us to find the right answer:

• how to set static IP address/mask/gateway? We are using Espruino WebIDE and testing ESP8266 ESP-12F.

// over a weeks and on many forums we still not able to find this solution...

Thank you! Michael

[espruino-discuss]

Posted at 2016-12-05 by Ollie

When used as an access point the IP is always 192.168.4.1. You can't change it AFAIK.

When used as a station connected to an access point, I've found creating a reserved IP on the router, based on the MAC address, to be convenient. ESP8266 will always be assigned the same IP - efectively 'static' IP when it connects.

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Posted at 2016-12-05 by ClearMemory041063

Here's another way Using Bonjour to find the IP dynamic address.
It works with an ESP8266 connected via serial to a Pico or original Espruino.
Does not currently work on an ESP8266 running Espruino, it would require a recompile of the firmware.
http://forum.espruino.com/conversations/293972/

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Posted at 2016-12-05 by @MaBecker

hmm, in times of dhcp there is no need for a static ip - or is there something I am missing ?

In station mode the ESPs use a host name like ESP_< last three octets of the mac >, so you can use that name to ping

ping esp_113532
PING esp_113532 (192.168.194.131): 56 data bytes
64 bytes from 192.168.194.131: icmp_seq=0 ttl=128 time=2.189 ms

or to connect with WEB IDE

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Attachments:

• Bildschirmfoto 2016-12-05 um 19.16.52.JPG

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Posted at 2016-12-05 by MSol

Thanks to everybody!

Let me clarify our problem on the example with one ESP12F. Our device has active Access Point and we need just to set them IP = 192.168.5.1.

To be more clear, every other device in our solution should have proprietary IP, for example 192.168.SN.1 (where SN is serial number of the device).

How to get it?

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Posted at 2016-12-05 by MSol

PING esp_113532 (192.168.194.131): 56 data bytes

it seems, we are near of what we need..

• what is esp_113532? is it Access Point?

• how did you reach .194. in the middle of IP address?

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Posted at 2016-12-05 by @MaBecker

I use the ESP in station mode and 192.168.194.0 is my local network

use this to get the full mac for ap and station:

>var Wifi = require("Wifi");
=function () { [native code] }
>Wifi.getAPIP();
={
  "ip": "0.0.0.0",
  "netmask": "0.0.0.0",
  "gw": "0.0.0.0",
  "mac": "5e:cf:7f:11:35:32"
 }
>Wifi.getIP();
={
  "ip": "192.168.194.131",
  "netmask": "255.255.255.0",
  "gw": "192.168.194.1",
  "mac": "5c:cf:7f:11:35:32"
 }
> 

as @ollie said, in AP mode the ip is always 192.168.4.1 and the SSID is always ESP_< last three octets of the mac >

>Wifi.getAPDetails();
={
  "status": "disabled",
  "authMode": "open",
  "hidden": false, "maxConn": 4,
  "ssid": "ESP_113532",
  "password": "",
  "savedSsid": null }

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Posted at 2016-12-05 by MSol

Thank you, I got it...

finally, I have found ESP8266 AT Instruction, where AT+CIPAP – Set IP address of ESP8266 softAP

• I hope, here solution could be found... Isn't it?... What is Yours thoughts?

I will try to set IP address in pure module and after that flash Espruino firmware...

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Posted at 2016-12-05 by Ollie

I don't think that will help you. Your firmware flash of Espruino will likely replace the Expressif AT command set firmware, and even if it didn't, Espruino would not make reference to it.

Maybe Espruino could be built to use a different AP IP address? I don't know if possible, but if it is possible, it will be in the espruino source code not the compiled binary. You should ask some questions in the Espruino gitter channel (https://gitter.im/espruino/Espruino) where the folk who know more about the ESP8266 port can often be found.

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Posted at 2016-12-06 by MSol

Thanks, Ollie. I saw gitter channel and spent several hours in there trying to fund something helpful. I will write there my question

btw, I have found discussion about Static IP here. Unfortunately, I did not see result. Can your team re-open issue and release draft version? I would like to test it!

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Posted at 2016-12-06 by Ollie

We're not a team as such, just a community who jump in and out as time permits. You're absolutely welcome to ask your question in Gitter - or jump on the Github issue you linked - both are for everyone. I'm sure the people familiar with the C aspects of Espruino and the ESP8266 port in particular (which I am not) will answer your question on current state and any likely future state re static IP addresses.

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Posted at 2016-12-06 by MSol

many thanks to everybody who gave me attention and answered to me! I need to learn technology how to build and flash firmware...

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Posted at 2016-12-06 by Ollie

Great to hear you've found a way forwards. Please share your builds.

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Posted at 2016-12-08 by Will

Would it be useful to set a DHCP hostname instead?