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mhsw-espurna/code/espurna/wifi.ino

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/*
WIFI MODULE
Copyright (C) 2016-2019 by Xose Pérez <xose dot perez at gmail dot com>
*/
#include <JustWifi.h>
#include <Ticker.h>
bool _wifi_wps_running = false;
bool _wifi_smartconfig_running = false;
bool _wifi_smartconfig_initial = false;
uint8_t _wifi_ap_mode = WIFI_AP_FALLBACK;
#if WIFI_GRATUITOUS_ARP_SUPPORT
unsigned long _wifi_gratuitous_arp_interval = 0;
unsigned long _wifi_gratuitous_arp_last = 0;
#endif
// -----------------------------------------------------------------------------
// PRIVATE
// -----------------------------------------------------------------------------
struct wifi_scan_info_t {
String ssid_scan;
int32_t rssi_scan;
uint8_t sec_scan;
uint8_t* BSSID_scan;
int32_t chan_scan;
bool hidden_scan;
char buffer[128];
};
void _wifiUpdateSoftAP() {
if (WiFi.softAPgetStationNum() == 0) {
#if USE_PASSWORD
jw.setSoftAP(getSetting("hostname").c_str(), getAdminPass().c_str());
#else
jw.setSoftAP(getSetting("hostname").c_str());
#endif
}
}
void _wifiCheckAP() {
if (
(WIFI_AP_FALLBACK == _wifi_ap_mode)
&& ((WiFi.getMode() & WIFI_AP) > 0)
&& jw.connected()
&& (WiFi.softAPgetStationNum() == 0)
) {
jw.enableAP(false);
}
}
void _wifiConfigure() {
jw.setHostname(getSetting("hostname").c_str());
_wifiUpdateSoftAP();
jw.setConnectTimeout(WIFI_CONNECT_TIMEOUT);
wifiReconnectCheck();
jw.enableAPFallback(WIFI_FALLBACK_APMODE);
jw.cleanNetworks();
_wifi_ap_mode = getSetting("apmode", WIFI_AP_FALLBACK).toInt();
// If system is flagged unstable we do not init wifi networks
#if SYSTEM_CHECK_ENABLED
if (!systemCheck()) return;
#endif
// Clean settings
_wifiClean(WIFI_MAX_NETWORKS);
int i;
for (i = 0; i< WIFI_MAX_NETWORKS; i++) {
if (!hasSetting("ssid", i)) break;
if (!hasSetting("ip", i)) {
jw.addNetwork(
getSetting("ssid", i, "").c_str(),
getSetting("pass", i, "").c_str()
);
} else {
jw.addNetwork(
getSetting("ssid", i, "").c_str(),
getSetting("pass", i, "").c_str(),
getSetting("ip", i, "").c_str(),
getSetting("gw", i, "").c_str(),
getSetting("mask", i, "").c_str(),
getSetting("dns", i, "").c_str()
);
}
}
#if JUSTWIFI_ENABLE_SMARTCONFIG
if (i == 0) _wifi_smartconfig_initial = true;
#endif
jw.enableScan(getSetting("wifiScan", WIFI_SCAN_NETWORKS).toInt() == 1);
unsigned char sleep_mode = getSetting("wifiSleep", WIFI_SLEEP_MODE).toInt();
sleep_mode = constrain(sleep_mode, 0, 2);
WiFi.setSleepMode(static_cast<WiFiSleepType_t>(sleep_mode));
#if WIFI_GRATUITOUS_ARP_SUPPORT
_wifi_gratuitous_arp_last = millis();
_wifi_gratuitous_arp_interval = getSetting("wifiGarpIntvl", secureRandom(
WIFI_GRATUITOUS_ARP_INTERVAL_MIN, WIFI_GRATUITOUS_ARP_INTERVAL_MAX
)).toInt();
#endif
const auto tx_power = getSetting("wifiTxPwr", WIFI_OUTPUT_POWER_DBM).toFloat();
WiFi.setOutputPower(tx_power);
}
void _wifiScan(wifi_scan_f callback = nullptr) {
DEBUG_MSG_P(PSTR("[WIFI] Start scanning\n"));
unsigned char result = WiFi.scanNetworks();
if (result == WIFI_SCAN_FAILED) {
DEBUG_MSG_P(PSTR("[WIFI] Scan failed\n"));
return;
} else if (result == 0) {
DEBUG_MSG_P(PSTR("[WIFI] No networks found\n"));
return;
}
DEBUG_MSG_P(PSTR("[WIFI] %d networks found:\n"), result);
// Populate defined networks with scan data
wifi_scan_info_t info;
for (unsigned char i = 0; i < result; ++i) {
WiFi.getNetworkInfo(i, info.ssid_scan, info.sec_scan, info.rssi_scan, info.BSSID_scan, info.chan_scan, info.hidden_scan);
snprintf_P(info.buffer, sizeof(info.buffer),
PSTR("BSSID: %02X:%02X:%02X:%02X:%02X:%02X SEC: %s RSSI: %3d CH: %2d SSID: %s"),
info.BSSID_scan[0], info.BSSID_scan[1], info.BSSID_scan[2], info.BSSID_scan[3], info.BSSID_scan[4], info.BSSID_scan[5],
(info.sec_scan != ENC_TYPE_NONE ? "YES" : "NO "),
info.rssi_scan,
info.chan_scan,
info.ssid_scan.c_str()
);
if (callback) {
callback(info);
} else {
DEBUG_MSG_P(PSTR("[WIFI] > %s\n"), info.buffer);
}
}
WiFi.scanDelete();
}
bool _wifiClean(unsigned char num) {
bool changed = false;
int i = 0;
// Clean defined settings
while (i < num) {
// Skip on first non-defined setting
if (!hasSetting("ssid", i)) {
delSetting("ssid", i);
break;
}
// Delete empty values
if (!hasSetting("pass", i)) delSetting("pass", i);
if (!hasSetting("ip", i)) delSetting("ip", i);
if (!hasSetting("gw", i)) delSetting("gw", i);
if (!hasSetting("mask", i)) delSetting("mask", i);
if (!hasSetting("dns", i)) delSetting("dns", i);
++i;
}
// Delete all other settings
while (i < WIFI_MAX_NETWORKS) {
changed = hasSetting("ssid", i);
delSetting("ssid", i);
delSetting("pass", i);
delSetting("ip", i);
delSetting("gw", i);
delSetting("mask", i);
delSetting("dns", i);
++i;
}
return changed;
}
// Inject hardcoded networks
void _wifiInject() {
if (strlen(WIFI1_SSID)) {
if (!hasSetting("ssid", 0)) {
setSetting("ssid", 0, F(WIFI1_SSID));
setSetting("pass", 0, F(WIFI1_PASS));
setSetting("ip", 0, F(WIFI1_IP));
setSetting("gw", 0, F(WIFI1_GW));
setSetting("mask", 0, F(WIFI1_MASK));
setSetting("dns", 0, F(WIFI1_DNS));
}
if (strlen(WIFI2_SSID)) {
if (!hasSetting("ssid", 1)) {
setSetting("ssid", 1, F(WIFI2_SSID));
setSetting("pass", 1, F(WIFI2_PASS));
setSetting("ip", 1, F(WIFI2_IP));
setSetting("gw", 1, F(WIFI2_GW));
setSetting("mask", 1, F(WIFI2_MASK));
setSetting("dns", 1, F(WIFI2_DNS));
}
if (strlen(WIFI3_SSID)) {
if (!hasSetting("ssid", 2)) {
setSetting("ssid", 2, F(WIFI3_SSID));
setSetting("pass", 2, F(WIFI3_PASS));
setSetting("ip", 2, F(WIFI3_IP));
setSetting("gw", 2, F(WIFI3_GW));
setSetting("mask", 2, F(WIFI3_MASK));
setSetting("dns", 2, F(WIFI3_DNS));
}
if (strlen(WIFI4_SSID)) {
if (!hasSetting("ssid", 3)) {
setSetting("ssid", 3, F(WIFI4_SSID));
setSetting("pass", 3, F(WIFI4_PASS));
setSetting("ip", 3, F(WIFI4_IP));
setSetting("gw", 3, F(WIFI4_GW));
setSetting("mask", 3, F(WIFI4_MASK));
setSetting("dns", 3, F(WIFI4_DNS));
}
}
}
}
}
}
void _wifiCallback(justwifi_messages_t code, char * parameter) {
if (MESSAGE_WPS_START == code) {
_wifi_wps_running = true;
}
if (MESSAGE_SMARTCONFIG_START == code) {
_wifi_smartconfig_running = true;
}
if (MESSAGE_WPS_ERROR == code || MESSAGE_SMARTCONFIG_ERROR == code) {
_wifi_wps_running = false;
_wifi_smartconfig_running = false;
}
if (MESSAGE_WPS_SUCCESS == code || MESSAGE_SMARTCONFIG_SUCCESS == code) {
String ssid = WiFi.SSID();
String pass = WiFi.psk();
// Look for the same SSID
uint8_t count = 0;
while (count < WIFI_MAX_NETWORKS) {
if (!hasSetting("ssid", count)) break;
if (ssid.equals(getSetting("ssid", count, ""))) break;
count++;
}
// If we have reached the max we overwrite the first one
if (WIFI_MAX_NETWORKS == count) count = 0;
setSetting("ssid", count, ssid);
setSetting("pass", count, pass);
_wifi_wps_running = false;
_wifi_smartconfig_running = false;
}
}
#if WIFI_AP_CAPTIVE
#include "DNSServer.h"
DNSServer _wifi_dnsServer;
void _wifiCaptivePortal(justwifi_messages_t code, char * parameter) {
if (MESSAGE_ACCESSPOINT_CREATED == code) {
_wifi_dnsServer.setErrorReplyCode(DNSReplyCode::NoError);
_wifi_dnsServer.start(53, "*", WiFi.softAPIP());
DEBUG_MSG_P(PSTR("[WIFI] Captive portal enabled\n"));
}
if (MESSAGE_CONNECTED == code) {
_wifi_dnsServer.stop();
DEBUG_MSG_P(PSTR("[WIFI] Captive portal disabled\n"));
}
}
#endif // WIFI_AP_CAPTIVE
#if DEBUG_SUPPORT
void _wifiDebugCallback(justwifi_messages_t code, char * parameter) {
// -------------------------------------------------------------------------
if (code == MESSAGE_SCANNING) {
DEBUG_MSG_P(PSTR("[WIFI] Scanning\n"));
}
if (code == MESSAGE_SCAN_FAILED) {
DEBUG_MSG_P(PSTR("[WIFI] Scan failed\n"));
}
if (code == MESSAGE_NO_NETWORKS) {
DEBUG_MSG_P(PSTR("[WIFI] No networks found\n"));
}
if (code == MESSAGE_NO_KNOWN_NETWORKS) {
DEBUG_MSG_P(PSTR("[WIFI] No known networks found\n"));
}
if (code == MESSAGE_FOUND_NETWORK) {
DEBUG_MSG_P(PSTR("[WIFI] %s\n"), parameter);
}
// -------------------------------------------------------------------------
if (code == MESSAGE_CONNECTING) {
DEBUG_MSG_P(PSTR("[WIFI] Connecting to %s\n"), parameter);
}
if (code == MESSAGE_CONNECT_WAITING) {
// too much noise
}
if (code == MESSAGE_CONNECT_FAILED) {
DEBUG_MSG_P(PSTR("[WIFI] Could not connect to %s\n"), parameter);
}
if (code == MESSAGE_CONNECTED) {
wifiDebug(WIFI_STA);
}
if (code == MESSAGE_DISCONNECTED) {
DEBUG_MSG_P(PSTR("[WIFI] Disconnected\n"));
}
// -------------------------------------------------------------------------
if (code == MESSAGE_ACCESSPOINT_CREATING) {
DEBUG_MSG_P(PSTR("[WIFI] Creating access point\n"));
}
if (code == MESSAGE_ACCESSPOINT_CREATED) {
wifiDebug(WIFI_AP);
}
if (code == MESSAGE_ACCESSPOINT_FAILED) {
DEBUG_MSG_P(PSTR("[WIFI] Could not create access point\n"));
}
if (code == MESSAGE_ACCESSPOINT_DESTROYED) {
_wifiUpdateSoftAP();
DEBUG_MSG_P(PSTR("[WIFI] Access point destroyed\n"));
}
// -------------------------------------------------------------------------
if (code == MESSAGE_WPS_START) {
DEBUG_MSG_P(PSTR("[WIFI] WPS started\n"));
}
if (code == MESSAGE_WPS_SUCCESS) {
DEBUG_MSG_P(PSTR("[WIFI] WPS succeded!\n"));
}
if (code == MESSAGE_WPS_ERROR) {
DEBUG_MSG_P(PSTR("[WIFI] WPS failed\n"));
}
// ------------------------------------------------------------------------
if (code == MESSAGE_SMARTCONFIG_START) {
DEBUG_MSG_P(PSTR("[WIFI] Smart Config started\n"));
}
if (code == MESSAGE_SMARTCONFIG_SUCCESS) {
DEBUG_MSG_P(PSTR("[WIFI] Smart Config succeded!\n"));
}
if (code == MESSAGE_SMARTCONFIG_ERROR) {
DEBUG_MSG_P(PSTR("[WIFI] Smart Config failed\n"));
}
}
#endif // DEBUG_SUPPORT
// -----------------------------------------------------------------------------
// SETTINGS
// -----------------------------------------------------------------------------
#if TERMINAL_SUPPORT
void _wifiInitCommands() {
terminalRegisterCommand(F("WIFI"), [](Embedis* e) {
wifiDebug();
terminalOK();
});
terminalRegisterCommand(F("WIFI.RESET"), [](Embedis* e) {
_wifiConfigure();
wifiDisconnect();
terminalOK();
});
terminalRegisterCommand(F("WIFI.STA"), [](Embedis* e) {
wifiStartSTA();
terminalOK();
});
terminalRegisterCommand(F("WIFI.AP"), [](Embedis* e) {
wifiStartAP();
terminalOK();
});
#if defined(JUSTWIFI_ENABLE_WPS)
terminalRegisterCommand(F("WIFI.WPS"), [](Embedis* e) {
wifiStartWPS();
terminalOK();
});
#endif // defined(JUSTWIFI_ENABLE_WPS)
#if defined(JUSTWIFI_ENABLE_SMARTCONFIG)
terminalRegisterCommand(F("WIFI.SMARTCONFIG"), [](Embedis* e) {
wifiStartSmartConfig();
terminalOK();
});
#endif // defined(JUSTWIFI_ENABLE_SMARTCONFIG)
terminalRegisterCommand(F("WIFI.SCAN"), [](Embedis* e) {
_wifiScan();
terminalOK();
});
}
#endif
// -----------------------------------------------------------------------------
// WEB
// -----------------------------------------------------------------------------
#if WEB_SUPPORT
bool _wifiWebSocketOnKeyCheck(const char * key, JsonVariant& value) {
if (strncmp(key, "wifi", 4) == 0) return true;
if (strncmp(key, "ssid", 4) == 0) return true;
if (strncmp(key, "pass", 4) == 0) return true;
if (strncmp(key, "ip", 2) == 0) return true;
if (strncmp(key, "gw", 2) == 0) return true;
if (strncmp(key, "mask", 4) == 0) return true;
if (strncmp(key, "dns", 3) == 0) return true;
return false;
}
void _wifiWebSocketOnConnected(JsonObject& root) {
root["maxNetworks"] = WIFI_MAX_NETWORKS;
root["wifiScan"] = getSetting("wifiScan", WIFI_SCAN_NETWORKS).toInt() == 1;
JsonArray& wifi = root.createNestedArray("wifi");
for (byte i=0; i<WIFI_MAX_NETWORKS; i++) {
if (!hasSetting("ssid", i)) break;
JsonObject& network = wifi.createNestedObject();
network["ssid"] = getSetting("ssid", i, "");
network["pass"] = getSetting("pass", i, "");
network["ip"] = getSetting("ip", i, "");
network["gw"] = getSetting("gw", i, "");
network["mask"] = getSetting("mask", i, "");
network["dns"] = getSetting("dns", i, "");
}
}
void _wifiWebSocketScan(JsonObject& root) {
JsonArray& scanResult = root.createNestedArray("scanResult");
_wifiScan([&scanResult](wifi_scan_info_t& info) {
scanResult.add(info.buffer);
});
}
void _wifiWebSocketOnAction(uint32_t client_id, const char * action, JsonObject& data) {
if (strcmp(action, "scan") == 0) wsPost(client_id, _wifiWebSocketScan);
}
#endif
// -----------------------------------------------------------------------------
// SUPPORT
// -----------------------------------------------------------------------------
#if WIFI_GRATUITOUS_ARP_SUPPORT
// ref: lwip src/core/netif.c netif_issue_reports(...)
// ref: esp-lwip/core/ipv4/etharp.c garp_tmr()
// TODO: only for ipv4, need (?) a different method with ipv6
bool _wifiSendGratuitousArp() {
bool result = false;
for (netif* interface = netif_list; interface != nullptr; interface = interface->next) {
if (
(interface->flags & NETIF_FLAG_ETHARP)
&& (interface->hwaddr_len == ETHARP_HWADDR_LEN)
#if LWIP_VERSION_MAJOR == 1
&& (!ip_addr_isany(&interface->ip_addr))
#else
&& (!ip4_addr_isany_val(*netif_ip4_addr(interface)))
#endif
&& (interface->flags & NETIF_FLAG_LINK_UP)
&& (interface->flags & NETIF_FLAG_UP)
) {
etharp_gratuitous(interface);
result = true;
}
}
return result;
}
void _wifiSendGratuitousArp(unsigned long interval) {
if (millis() - _wifi_gratuitous_arp_last > interval) {
_wifi_gratuitous_arp_last = millis();
_wifiSendGratuitousArp();
}
}
#endif // WIFI_GRATUITOUS_ARP_SUPPORT
// -----------------------------------------------------------------------------
// INFO
// -----------------------------------------------------------------------------
// backported WiFiAPClass methods
String _wifiSoftAPSSID() {
struct softap_config config;
wifi_softap_get_config(&config);
char* name = reinterpret_cast<char*>(config.ssid);
char ssid[sizeof(config.ssid) + 1];
memcpy(ssid, name, sizeof(config.ssid));
ssid[sizeof(config.ssid)] = '\0';
return String(ssid);
}
String _wifiSoftAPPSK() {
struct softap_config config;
wifi_softap_get_config(&config);
char* pass = reinterpret_cast<char*>(config.password);
char psk[sizeof(config.password) + 1];
memcpy(psk, pass, sizeof(config.password));
psk[sizeof(config.password)] = '\0';
return String(psk);
}
void wifiDebug(WiFiMode_t modes) {
#if DEBUG_SUPPORT
bool footer = false;
if (((modes & WIFI_STA) > 0) && ((WiFi.getMode() & WIFI_STA) > 0)) {
DEBUG_MSG_P(PSTR("[WIFI] ------------------------------------- MODE STA\n"));
DEBUG_MSG_P(PSTR("[WIFI] SSID %s\n"), WiFi.SSID().c_str());
DEBUG_MSG_P(PSTR("[WIFI] IP %s\n"), WiFi.localIP().toString().c_str());
DEBUG_MSG_P(PSTR("[WIFI] MAC %s\n"), WiFi.macAddress().c_str());
DEBUG_MSG_P(PSTR("[WIFI] GW %s\n"), WiFi.gatewayIP().toString().c_str());
DEBUG_MSG_P(PSTR("[WIFI] DNS %s\n"), WiFi.dnsIP().toString().c_str());
DEBUG_MSG_P(PSTR("[WIFI] MASK %s\n"), WiFi.subnetMask().toString().c_str());
DEBUG_MSG_P(PSTR("[WIFI] HOST http://%s.local\n"), WiFi.hostname().c_str());
DEBUG_MSG_P(PSTR("[WIFI] BSSID %s\n"), WiFi.BSSIDstr().c_str());
DEBUG_MSG_P(PSTR("[WIFI] CH %d\n"), WiFi.channel());
DEBUG_MSG_P(PSTR("[WIFI] RSSI %d\n"), WiFi.RSSI());
footer = true;
}
if (((modes & WIFI_AP) > 0) && ((WiFi.getMode() & WIFI_AP) > 0)) {
DEBUG_MSG_P(PSTR("[WIFI] -------------------------------------- MODE AP\n"));
DEBUG_MSG_P(PSTR("[WIFI] SSID %s\n"), _wifiSoftAPSSID().c_str());
DEBUG_MSG_P(PSTR("[WIFI] PASS %s\n"), _wifiSoftAPPSK().c_str());
DEBUG_MSG_P(PSTR("[WIFI] IP %s\n"), WiFi.softAPIP().toString().c_str());
DEBUG_MSG_P(PSTR("[WIFI] MAC %s\n"), WiFi.softAPmacAddress().c_str());
footer = true;
}
if (WiFi.getMode() == 0) {
DEBUG_MSG_P(PSTR("[WIFI] ------------------------------------- MODE OFF\n"));
DEBUG_MSG_P(PSTR("[WIFI] No connection\n"));
footer = true;
}
if (footer) {
DEBUG_MSG_P(PSTR("[WIFI] ----------------------------------------------\n"));
}
#endif //DEBUG_SUPPORT
}
void wifiDebug() {
wifiDebug(WIFI_AP_STA);
}
// -----------------------------------------------------------------------------
// API
// -----------------------------------------------------------------------------
String getIP() {
if (WiFi.getMode() == WIFI_AP) {
return WiFi.softAPIP().toString();
}
return WiFi.localIP().toString();
}
String getNetwork() {
if (WiFi.getMode() == WIFI_AP) {
return jw.getAPSSID();
}
return WiFi.SSID();
}
bool wifiConnected() {
return jw.connected();
}
void wifiDisconnect() {
jw.disconnect();
}
void wifiStartSTA() {
jw.disconnect();
jw.enableSTA(true);
jw.enableAP(false);
}
void wifiStartAP(bool only) {
if (only) {
jw.enableSTA(false);
jw.disconnect();
jw.resetReconnectTimeout();
}
jw.enableAP(true);
}
void wifiStartAP() {
wifiStartAP(true);
}
#if defined(JUSTWIFI_ENABLE_WPS)
void wifiStartWPS() {
jw.enableAP(false);
jw.disconnect();
jw.startWPS();
}
#endif // defined(JUSTWIFI_ENABLE_WPS)
#if defined(JUSTWIFI_ENABLE_SMARTCONFIG)
void wifiStartSmartConfig() {
jw.enableAP(false);
jw.disconnect();
jw.startSmartConfig();
}
#endif // defined(JUSTWIFI_ENABLE_SMARTCONFIG)
void wifiReconnectCheck() {
bool connected = false;
#if WEB_SUPPORT
if (wsConnected()) connected = true;
#endif
#if TELNET_SUPPORT
if (telnetConnected()) connected = true;
#endif
jw.enableSTA(true);
jw.setReconnectTimeout(connected ? 0 : WIFI_RECONNECT_INTERVAL);
}
uint8_t wifiState() {
uint8_t state = 0;
if (jw.connected()) state += WIFI_STATE_STA;
if (jw.connectable()) state += WIFI_STATE_AP;
if (_wifi_wps_running) state += WIFI_STATE_WPS;
if (_wifi_smartconfig_running) state += WIFI_STATE_SMARTCONFIG;
return state;
}
void wifiRegister(wifi_callback_f callback) {
jw.subscribe(callback);
}
// -----------------------------------------------------------------------------
// INITIALIZATION
// -----------------------------------------------------------------------------
void wifiSetup() {
_wifiInject();
_wifiConfigure();
#if JUSTWIFI_ENABLE_SMARTCONFIG
if (_wifi_smartconfig_initial) jw.startSmartConfig();
#endif
// Message callbacks
wifiRegister(_wifiCallback);
#if WIFI_AP_CAPTIVE
wifiRegister(_wifiCaptivePortal);
#endif
#if DEBUG_SUPPORT
wifiRegister(_wifiDebugCallback);
#endif
#if WEB_SUPPORT
wsRegister()
.onAction(_wifiWebSocketOnAction)
.onConnected(_wifiWebSocketOnConnected)
.onKeyCheck(_wifiWebSocketOnKeyCheck);
#endif
#if TERMINAL_SUPPORT
_wifiInitCommands();
#endif
// Main callbacks
espurnaRegisterLoop(wifiLoop);
espurnaRegisterReload(_wifiConfigure);
}
void wifiLoop() {
// Main wifi loop
jw.loop();
// Process captrive portal DNS queries if in AP mode only
#if WIFI_AP_CAPTIVE
if ((WiFi.getMode() & WIFI_AP) == WIFI_AP) {
_wifi_dnsServer.processNextRequest();
}
#endif
// Only send out gra arp when in STA mode
#if WIFI_GRATUITOUS_ARP_SUPPORT
if (_wifi_gratuitous_arp_interval) {
_wifiSendGratuitousArp(_wifi_gratuitous_arp_interval);
}
#endif
// Check if we should disable AP
static unsigned long last = 0;
if (millis() - last > 60000) {
last = millis();
_wifiCheckAP();
}
}