ESP8266 Community Forum

- Fri Mar 12, 2021 7:21 am #90802 Hi everybody,

I'm currently building a few smart plugs based on the tiny module ESP8266-01S, two relays and a power supply. It connects to the home WiFi network and it's seen by Alexa that can command the two relays.
The whole thing works fine with ESP8266WiFi but I need to add the capability of connecting to the strongest AP at home (I have three).
Unfortunately not even the WiFiMulti.ino basic example works. The ESP8266-01S starts looping without connecting to anything.
Please note that if I upload the usual WiFiScan.ino example it works fine and sees the 6-7 SSID I've around.
Has anybody a suggestion about what to do? I've seen, on Internet, that the WiFiMulti seems to have been problematic on 8266 but the subject is old and I haven't found any solution .
Many thanks in advance for any help

- Mon Mar 15, 2021 1:51 am #90827 do you have a code you can post?

- Tue Mar 16, 2021 7:46 am #90850 I thought it wasn't necessary because I'm using the example files which come with the installation of the ESP8266 board.
The one I'm mentioning is WiFiMulti.ino, here below
/*
This sketch trys to Connect to the best AP based on a given list
*/

#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>

ESP8266WiFiMulti wifiMulti;

void setup() {
Serial.begin(115200);

WiFi.mode(WIFI_STA);
wifiMulti.addAP("ssid_from_AP_1", "your_password_for_AP_1");
wifiMulti.addAP("ssid_from_AP_2", "your_password_for_AP_2");
wifiMulti.addAP("ssid_from_AP_3", "your_password_for_AP_3");

Serial.println("Connecting Wifi...");
if (wifiMulti.run() == WL_CONNECTED) {
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
}
}

void loop() {
if (wifiMulti.run() != WL_CONNECTED) {
Serial.println("WiFi not connected!");
delay(1000);
}

- Tue Mar 16, 2021 2:39 pm #90854 and you did edit the list of APs?