Ezt a minimális példát futtattam:
#include <WiFi.h>
const char *ssid = "xxx";
const char *password = "xxx";
int LED = 2;
int btnGPIO = 0;
int btnState = false;
void setup() {
Serial.begin(115200);
delay(10);
// Set GPIO0 Boot button as input
pinMode(LED, OUTPUT);
pinMode(btnGPIO, INPUT);
// We start by connecting to a WiFi network
// To debug, please enable Core Debug Level to Verbose
Serial.println();
Serial.print("[WiFi] Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
// Auto reconnect is set true as default
// To set auto connect off, use the following function
// WiFi.setAutoReconnect(false);
// Will try for about 10 seconds (20x 500ms)
int tryDelay = 500;
int numberOfTries = 20;
// Wait for the WiFi event
while (true) {
switch (WiFi.status()) {
case WL_NO_SSID_AVAIL:
Serial.println("[WiFi] SSID not found");
break;
case WL_CONNECT_FAILED:
Serial.print("[WiFi] Failed - WiFi not connected! Reason: ");
return;
break;
case WL_CONNECTION_LOST:
Serial.println("[WiFi] Connection was lost");
break;
case WL_SCAN_COMPLETED:
Serial.println("[WiFi] Scan is completed");
break;
case WL_DISCONNECTED:
Serial.println("[WiFi] WiFi is disconnected");
break;
case WL_CONNECTED:
Serial.println("[WiFi] WiFi is connected!");
Serial.print("[WiFi] IP address: ");
Serial.println(WiFi.localIP());
digitalWrite(LED, HIGH);
return;
break;
default:
Serial.print("[WiFi] WiFi Status: ");
Serial.println(WiFi.status());
break;
}
delay(tryDelay);
if (numberOfTries <= 0) {
Serial.print("[WiFi] Failed to connect to WiFi!");
// Use disconnect function to force stop trying to connect
WiFi.disconnect();
digitalWrite(LED, LOW);
return;
} else {
numberOfTries--;
}
}
}
void loop() {
// Read the button state
btnState = digitalRead(btnGPIO);
if (btnState == LOW) {
// Disconnect from WiFi
Serial.println("[WiFi] Disconnecting from WiFi!");
// This function will disconnect and turn off the WiFi (NVS WiFi data is
// kept)
if (WiFi.disconnect(true, false)) {
Serial.println("[WiFi] Disconnected from WiFi!");
}
delay(1000);
}
}Induláskor (flashelés után, USB újracsatlakozása után) ezt kapom (20x):
..
[WiFi] WiFi is disconnected
[ 3284][V][WiFiGeneric.cpp:362] _arduino_event_cb(): STA Disconnected: SSID: gentoom, BSSID: 18:e8:29:fb:75:08, Reason: 15
[ 3285][D][WiFiGeneric.cpp:931] _eventCallback(): Arduino Event: 5 - STA_DISCONNECTED
[ 3292][W][WiFiGeneric.cpp:955] _eventCallback(): Reason: 15 - 4WAY_HANDSHAKE_TIMEOUT
[ 3300][D][WiFiGeneric.cpp:975] _eventCallback(): WiFi Reconnect Running
[ 3308][V][WiFiGeneric.cpp:97] set_esp_interface_ip(): Configuring Station static IP: 0.0.0.0, MASK: 0.0.0.0, GW: 0.0.0.0
...
(és ezt se mindig, most pl. 5x próbáltam, és mindig kapcsolódott - de nem ez a jellemző.)
Majd megnyomom a gombot:
rst:0x1 (POWERON_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0030,len:1184
load:0x40078000,len:13104
load:0x40080400,len:3036
entry 0x400805e4
...
[WiFi] WiFi is disconnected
[WiFi] WiFi is disconnected
[WiFi] WiFi is disconnected
[ 1201][V][WiFiGeneric.cpp:362] _arduino_event_cb(): STA Disconnected: SSID: gentoom, BSSID: 18:e8:29:fb:75:08, Reason: 4
[ 1202][D][WiFiGeneric.cpp:931] _eventCallback(): Arduino Event: 5 - STA_DISCONNECTED
[ 1209][W][WiFiGeneric.cpp:955] _eventCallback(): Reason: 4 - ASSOC_EXPIRE
[ 1215][D][WiFiGeneric.cpp:975] _eventCallback(): WiFi Reconnect Running
[ 1224][V][WiFiGeneric.cpp:97] set_esp_interface_ip(): Configuring Station static IP: 0.0.0.0, MASK: 0.0.0.0, GW: 0.0.0.0
[ 1300][V][WiFiGeneric.cpp:355] _arduino_event_cb(): STA Connected: SSID: gentoom, BSSID: 18:e8:29:fb:75:08, Channel: 1, Auth: WPA2_PSK
[ 1301][D][WiFiGeneric.cpp:931] _eventCallback(): Arduino Event: 4 - STA_CONNECTED
[ 1327][V][WiFiGeneric.cpp:369] _arduino_event_cb(): STA Got New IP:192.168.3.135
[ 1328][D][WiFiGeneric.cpp:931] _eventCallback(): Arduino Event: 7 - STA_GOT_IP
[ 1331][D][WiFiGeneric.cpp:996] _eventCallback(): STA IP: 192.168.3.135, MASK: 255.255.255.0, GW: 192.168.3.1
[WiFi] WiFi is connected!
[WiFi] IP address: 192.168.3.135
Kapcsolódik. Lehet az AMS117 IC-nél lévő kondik (10 uF) kevesek?