WiFiManager
ESP8266 WiFi Connection manager with save to EEPROM and web config portal
Captive portal should also work, I have tested it only on iOS.
First attempt at a library. Lots more changes and fixes to do. Adding examples also needs doing.
This works with the ESP8266 Arduino platform https://github.com/esp8266/Arduino
v0.1 works with the staging release ver. 1.6.5-1044-g170995a, built on Aug 10, 2015 of the ESP8266 Arduino library.
v0.2 and newer need the latest staging version (or at least a recent release of the staging version) to work
How It works
- when your ESP starts up, it sets it up in Station mode and tries to connect to a previously saved Access Point
- if this is unsuccessful (or no previous network saved) it moves the ESP into Access Point mode and spins up a DNS and WebServer (default ip 192.168.4.1)
- using any wifi enabled device with a browser (computer, phone, tablet) connect to the newly created Access Point
- because of the Captive Portal and the DNS server you will either get a 'Join to network' type of popup or get any domain you try to access redirected to the configuration portal
- choose one of the access points scanned, enter password, click save, ESP will reboot and retry the whole flow above
Quick Start
-
Checkout library to your Arduino libraries folder
-
Include in your sketch
#include <EEPROM.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <DNSServer.h>
#include <WiFiManager.h>
- Initialise library, in your setup function add
//parameter is eeprom start
WiFiManager wifi;
- Also in the setup function add
//parameter is name of access point
wifi.autoConnect("AP-NAME");
or if you want to use and auto generated name from 'ESP' and the esp's Chip ID use
wifi.autoConnect();
After you write your sketch and start the ESP, it will try to connect to WiFi. If it fails it starts in Access Point mode. While in AP mode, connect to it then open a browser to the gateway IP, default 192.168.4.1, configure wifi, save and it should reboot and connect.
Also see examples.
Timeout
If you need to set a timeout so the ESP doesn't hang waiting to be configured, for instance after a power failure, you can add
wifi.setTimeout(180);
which will wait 3 minutes (180 seconds). When the time passes, the autoConnect function will return, no matter the outcome. Check for connection and if it's still not established do whatever is needed (on some modules I restart them to retry, on others I enter deep sleep)
Debug
Debug is enabled by default on Serial. To disable add before autoConnect
wifi.setDebugOutput(false);
Custom IP Configuration
This will set your captive portal to a specific IP should you need/want such a feature. Add the following snippet before autoConnect()
//set custom ip for portal
wifi.setAPConfig(IPAddress(10,0,1,1), IPAddress(10,0,1,1), IPAddress(255,255,255,0));
####Inspiration
To be continued...