8000 dynamic WiFi.hostname("newname") by d-a-v · Pull Request #5652 · esp8266/Arduino · GitHub
[go: up one dir, main page]
Skip to content

dynamic WiFi.hostname("newname") #5652

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom
Merged
merged 4 commits into from
Jan 24, 2019
Merged

dynamic WiFi.hostname("newname") #5652

merged 4 commits into from
Jan 24, 2019

Conversation

d-a-v
Copy link
Collaborator
@d-a-v d-a-v commented Jan 23, 2019 •
edited
Loading

Effect of WiFi.hostname("new name") on the network:

hostname

My AP runs openwrt with dnsmasq, and I can ping the new hostname as soon as Wifi.hostname("name") is called on the esp.

Sketch:


#include <ESP8266WiFi.h>
#include <PolledTimeout.h>

#ifndef STASSID
#define STASSID "your-ssid"
#define STAPSK  "your-password"
#endif

const char* ssid     = STASSID;
const char* password = STAPSK;

void connect ()
{
  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".
8000
");
  }

  Serial.println("");
  Serial.println("WiFi connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
}

void setup() {
  Serial.begin(115200);
  Serial.println();
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.persistent(false);
  connect();
  WiFi.hostname("chameleon");
  Serial.printf("host name is %s, will change every 20 seconds, ping me !\n", WiFi.hostname().c_str());
}

esp8266::polledTimeout::periodic renew(20000);
int count = 0;

void loop()
{
  if (renew)
  {
    String name = String(++count) + "chameleonchameleonchameleon";
    Serial.printf("setting hostname to: %s\n", name.c_str());
    Serial.printf("ret=%d\n", WiFi.hostname(name));
    Serial.printf("hostname=%s\n", WiFi.hostname().c_str());
  }
}

Logs:

...
setting hostname to: 17chameleonchameleonchameleon
hostname '17chameleonchameleonchameleon' is not compliant with RFC952
ret=0
...

(but esp name stays "nicely" responding to name 17chameleonchameleonchameleon)

@d-a-v d-a-v requested a review from devyte January 23, 2019 18:38
devyte
devyte requested changes Jan 23, 2019
View reviewed changes
@d-a-v d-a-v mentioned this pull request Jan 24, 2019
Closed
@devyte devyte merged commit 7c5be91 into esp8266:master Jan 24, 2019
@crankyoldgit crankyoldgit mentioned this pull request Jan 27, 2019
Closed
6 tasks
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Reviewers

@devyte devyte devyte approved these changes

Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
Development

Successfully merging this pull request may close these issues.
3 participants
@d-a-v @devyte @earlephilhower
0