Add command BSSid[1|2] [0|1|11:22:33:44:55:66] to select fixed WiFi Access Point disabling SetOption56 and SetOption57 (#24394)

CHANGELOG.md

@@ -8,6 +8,7 @@ All notable changes to this project will be documented in this file.
 - Serial console support for Backspace when enabling `#define USE_SERIAL_BACKSPACE` (#24830)
 - Build copy firmware artifacts with ELF-extracted build timestamp (opt-in) (#24794)
 - Enhance Matter plugin functionality for On/Off control and add support for Global Scene Control and related commands (#24854)
+- Command `BSSid[1|2] [0|1|11:22:33:44:55:66]` to select fixed WiFi Access Point disabling `SetOption56` and `SetOption57` (#24394)
 
 ### Breaking Changed
 

RELEASENOTES.md

@@ -117,6 +117,7 @@ The latter links can be used for OTA upgrades too like ``OtaUrl https://ota.tasm
 - Build copy firmware artifacts with ELF-extracted build timestamp (opt-in) [#24794](https://github.com/arendst/Tasmota/issues/24794)
 - Command `SetOption [0..2]` to display SetOption values
 - Command `WcResolution 0..24` increasing camera max resolution from 14 to 24
+- Command `BSSid[1|2] [0|1|11:22:33:44:55:66]` to select fixed WiFi Access Point disabling `SetOption56` and `SetOption57` [#24394](https://github.com/arendst/Tasmota/issues/24394)
 - Support for hostname generation using single-specifier Format() patterns [#24731](https://github.com/arendst/Tasmota/issues/24731)
 - Support for Modbus RX Enable GPIO [#24726](https://github.com/arendst/Tasmota/issues/24726)
 - Support for multi-byte chars like emojis (💡) in light device toggle buttons [#24482](https://github.com/arendst/Tasmota/issues/24482)

tasmota/include/i18n.h

@@ -346,6 +346,7 @@
 #define D_CMND_IPADDRESS "IPAddress"
 #define D_CMND_NTPSERVER "NtpServer"
 #define D_CMND_AP "Ap"
+#define D_CMND_BSSID "BSSId"
 #define D_CMND_SSID "SSId"
 #define D_CMND_PASSWORD "Password"
 #define D_CMND_HOSTNAME "Hostname"

tasmota/include/tasmota.h

@@ -508,6 +508,7 @@ enum SettingsTextIndex { SET_OTAURL,
                          SET_INFLUXDB_HOST, SET_INFLUXDB_PORT, SET_INFLUXDB_ORG, SET_INFLUXDB_TOKEN, SET_INFLUXDB_BUCKET, SET_INFLUXDB_RP,
                          SET_CANVAS,
                          SET_TELEGRAM_FINGERPRINT,
+                         SET_APBSSID1, SET_APBSSID2,  // MAX_SSIDS
                          SET_MAX, // limit of texts stored in Settings
                          // Index above are not stored in Settings and should be handled specifically in SettingText()
                          SET_BUTTON17, SET_BUTTON18, SET_BUTTON19, SET_BUTTON20, SET_BUTTON21, SET_BUTTON22, SET_BUTTON23, SET_BUTTON24,

tasmota/my_user_config.h

@@ -78,12 +78,18 @@
 #ifndef STA_PASS1
 #define STA_PASS1              ""                // [Password1] Wi-Fi password
 #endif
+#ifndef AP_BSSID1
+#define AP_BSSID1              ""                // [BSsid1] Wi-Fi desired AP BSSID to connect to
+#endif
 #ifndef STA_SSID2
 #define STA_SSID2              ""                // [Ssid2] Optional alternate AP Wi-Fi SSID
 #endif
 #ifndef STA_PASS2
 #define STA_PASS2              ""                // [Password2] Optional alternate AP Wi-Fi password
 #endif
+#ifndef AP_BSSID2
+#define AP_BSSID2              ""                // [BSsid2] Wi-Fi desired AP BSSID to connect to
+#endif
 #ifndef WIFI_AP_PASSPHRASE
 #define WIFI_AP_PASSPHRASE     ""                // AccessPoint passphrase. For WPA2 min 8 char, for open use "" (max 63 char).
 #endif

tasmota/tasmota_support/support_command.ino

@@ -30,7 +30,7 @@ const char kTasmotaCommands[] PROGMEM = "|"  // No prefix
   D_CMND_MODULE "|" D_CMND_MODULES "|" D_CMND_GPIO "|" D_CMND_GPIOREAD "|" D_CMND_GPIOS "|" D_CMND_TEMPLATE "|" D_CMND_PWM "|" D_CMND_PWMFREQUENCY "|" D_CMND_PWMRANGE "|"
   D_CMND_BUTTONDEBOUNCE "|" D_CMND_SWITCHDEBOUNCE "|" D_CMND_SYSLOG "|" D_CMND_LOGHOST "|" D_CMND_LOGPORT "|"
   D_CMND_SERIALBUFFER "|" D_CMND_SERIALSEND "|" D_CMND_BAUDRATE "|" D_CMND_SERIALCONFIG "|" D_CMND_SERIALDELIMITER "|"
-  D_CMND_IPADDRESS "|" D_CMND_NTPSERVER "|" D_CMND_AP "|" D_CMND_SSID "|" D_CMND_PASSWORD "|" D_CMND_HOSTNAME "|" D_CMND_WIFICONFIG "|" D_CMND_WIFI "|" D_CMND_DNSTIMEOUT "|"
+  D_CMND_IPADDRESS "|" D_CMND_NTPSERVER "|" D_CMND_AP "|" D_CMND_BSSID "|" D_CMND_SSID "|" D_CMND_PASSWORD "|" D_CMND_HOSTNAME "|" D_CMND_WIFICONFIG "|" D_CMND_WIFI "|" D_CMND_DNSTIMEOUT "|"
   D_CMND_DEVICENAME "|" D_CMND_FN "|" D_CMND_FRIENDLYNAME "|" D_CMND_SWITCHMODE "|" D_CMND_INTERLOCK "|" D_CMND_TELEPERIOD "|" D_CMND_RESET "|"
   D_CMND_TIME "|" D_CMND_TIMEZONE "|" D_CMND_TIMESTD "|" D_CMND_TIMEDST "|" D_CMND_ALTITUDE "|"
   D_CMND_LEDPOWER "|" D_CMND_LEDSTATE "|" D_CMND_LEDMASK "|" D_CMND_LEDPWM_ON "|" D_CMND_LEDPWM_OFF "|" D_CMND_LEDPWM_MODE "|"
@@ -79,7 +79,7 @@ void (* const TasmotaCommand[])(void) PROGMEM = {
   &CmndModule, &CmndModules, &CmndGpio, &CmndGpioRead, &CmndGpios, &CmndTemplate, &CmndPwm, &CmndPwmfrequency, &CmndPwmrange,
   &CmndButtonDebounce, &CmndSwitchDebounce, &CmndSyslog, &CmndLoghost, &CmndLogport,
   &CmndSerialBuffer, &CmndSerialSend, &CmndBaudrate, &CmndSerialConfig, &CmndSerialDelimiter,
-  &CmndIpAddress, &CmndNtpServer, &CmndAp, &CmndSsid, &CmndPassword, &CmndHostname, &CmndWifiConfig, &CmndWifi, &CmndDnsTimeout,
+  &CmndIpAddress, &CmndNtpServer, &CmndAp, &CmndBSsid, &CmndSsid, &CmndPassword, &CmndHostname, &CmndWifiConfig, &CmndWifi, &CmndDnsTimeout,
   &CmndDevicename, &CmndFriendlyname, &CmndFriendlyname, &CmndSwitchMode, &CmndInterlock, &CmndTeleperiod, &CmndReset,
   &CmndTime, &CmndTimezone, &CmndTimeStd, &CmndTimeDst, &CmndAltitude,
   &CmndLedPower, &CmndLedState, &CmndLedMask, &CmndLedPwmOn, &CmndLedPwmOff, &CmndLedPwmMode,
@@ -2475,6 +2475,22 @@ void CmndAp(void)
   Response_P(S_JSON_COMMAND_NVALUE_SVALUE, XdrvMailbox.command, Settings->sta_active +1, EscapeJSONString(SettingsText(SET_STASSID1 + Settings->sta_active)).c_str());
 }
 
+void CmndBSsid(void) {
+  if ((XdrvMailbox.index > 0) && (XdrvMailbox.index <= MAX_SSIDS)) {
+    if (!XdrvMailbox.usridx) {
+      ResponseCmndAll(SET_APBSSID1, MAX_SSIDS);
+    } else {
+      if ((Shortcut() < 2) || (17 == XdrvMailbox.data_len)) {  // Valid BSSID = 18:E8:29:CA:17:C1
+        SettingsUpdateText(SET_APBSSID1 + XdrvMailbox.index -1,
+                (SC_CLEAR == Shortcut()) ? "" : (SC_DEFAULT == Shortcut()) ? (1 == XdrvMailbox.index) ? AP_BSSID1 : AP_BSSID2 : XdrvMailbox.data);
+        Settings->sta_active = XdrvMailbox.index -1;
+        TasmotaGlobal.restart_flag = 2;
+      }
+      ResponseCmndIdxChar(SettingsText(SET_APBSSID1 + XdrvMailbox.index -1));
+    }
+  }
+}
+
 void CmndSsid(void)
 {
   if ((XdrvMailbox.index > 0) && (XdrvMailbox.index <= MAX_SSIDS)) {

tasmota/tasmota_support/support_wifi.ino

@@ -410,22 +410,49 @@ void WifiBegin(uint8_t flag, uint8_t channel) {
   }
   if (Settings->ipv4_address[0]) {
     // AddLog(LOG_LEVEL_INFO, ">>>1: Wifi Config DNS %_I %_I", Settings->ipv4_address[3], Settings->ipv4_address[4]);
-    WiFi.config(Settings->ipv4_address[0], Settings->ipv4_address[1], Settings->ipv4_address[2], Settings->ipv4_address[3], Settings->ipv4_address[4]);  // Set static IP
+    WiFi.config(Settings->ipv4_address[0],
+                Settings->ipv4_address[1],
+                Settings->ipv4_address[2],
+                Settings->ipv4_address[3],
+                Settings->ipv4_address[4]);  // Set static IP
   }
   WiFi.hostname(TasmotaGlobal.hostname);  // ESP8266 needs this here (after WiFi.mode)
 
-  char stemp[40] = { 0 };
+  char stemp[50] = { 0 };
   if (channel) {
-    WiFiHelper::begin(SettingsText(SET_STASSID1 + Settings->sta_active), SettingsText(SET_STAPWD1 + Settings->sta_active), channel, Wifi.bssid);
+    char bssid_user[16] = " (LastUsed)";
+    if (strlen(SettingsText(SET_APBSSID1 + Settings->sta_active))) {  // Valid BSSID = 18:E8:29:CA:17:C1
+      char* mac_part = SettingsText(SET_APBSSID1 + Settings->sta_active);
+      for (uint32_t i = 0; i < 6; i++) {
+        Wifi.bssid[i] = strtol(mac_part, &mac_part, 16);
+        mac_part++;  // Skip ":"
+      }
+      snprintf_P(bssid_user, sizeof(bssid_user), PSTR(" (User)"));
+    }
+    else if (Settings->flag3.use_wifi_scan) {  // SetOption56 - Scan wifi network at restart for configured AP's
+      snprintf_P(bssid_user, sizeof(bssid_user), PSTR(" (Strongest)"));
+    }
+    WiFiHelper::begin(SettingsText(SET_STASSID1 + Settings->sta_active),
+                      SettingsText(SET_STAPWD1 + Settings->sta_active),
+                      channel,
+                      Wifi.bssid);
     // Add connected BSSID and channel for multi-AP installations
     char hex_char[18];
-    snprintf_P(stemp, sizeof(stemp), PSTR(" Channel %d BSSId %s"), channel, ToHex_P((unsigned char*)Wifi.bssid, 6, hex_char, sizeof(hex_char), ':'));
+    snprintf_P(stemp, sizeof(stemp), PSTR(" Channel %d BSSId %s%s"),
+      channel,
+      ToHex_P((unsigned char*)Wifi.bssid, 6, hex_char, sizeof(hex_char), ':'),
+      bssid_user);
   } else {
-    WiFiHelper::begin(SettingsText(SET_STASSID1 + Settings->sta_active), SettingsText(SET_STAPWD1 + Settings->sta_active));
+    WiFiHelper::begin(SettingsText(SET_STASSID1 + Settings->sta_active),
+                      SettingsText(SET_STAPWD1 + Settings->sta_active));
   }
   delay(500);
   AddLog(LOG_LEVEL_INFO, PSTR(D_LOG_WIFI D_CONNECTING_TO_AP "%d %s%s " D_IN_MODE " %s " D_AS " %s..."),
-    Settings->sta_active +1, SettingsText(SET_STASSID1 + Settings->sta_active), stemp, WifiGetPhyMode().c_str(), TasmotaGlobal.hostname);
+    Settings->sta_active +1,
+    SettingsText(SET_STASSID1 + Settings->sta_active),
+    stemp,
+    WifiGetPhyMode().c_str(),
+    TasmotaGlobal.hostname);
 
   if (Settings->flag5.wait_for_wifi_result) {  // SetOption142 - (Wifi) Wait 1 second for wifi connection solving some FRITZ!Box modem issues (1)
     WiFi.waitForConnectResult(1000);  // https://github.com/arendst/Tasmota/issues/14985
@@ -1235,7 +1262,8 @@ void WifiCheckIp(void) {
         }
     }
     if (Wifi.retry) {
-      if (Settings->flag3.use_wifi_scan) {  // SetOption56 - Scan wifi network at restart for configured AP's
+      if ((Settings->flag3.use_wifi_scan) &&  // SetOption56 - Scan wifi network at restart for configured AP's
+          (!strlen(SettingsText(SET_APBSSID1 + Settings->sta_active)))) {  // No BSSID
         if (Wifi.retry_init == Wifi.retry) {
           Wifi.scan_state = 1;    // Select scanned SSID
         }
@@ -1300,7 +1328,8 @@ void WifiCheck(uint8_t param)
       }
       if ((WL_CONNECTED == WiFi.status()) && WifiHasIP() && !Wifi.config_type) {
         WifiSetState(1);
-        if (Settings->flag3.use_wifi_rescan) {  // SetOption57 - Scan wifi network every 44 minutes for configured AP's
+        if ((Settings->flag3.use_wifi_rescan) &&  // SetOption57 - Scan wifi network every 44 minutes for configured AP's
+           (!strlen(SettingsText(SET_APBSSID1 + Settings->sta_active)))) {  // No BSSID
           if (!(TasmotaGlobal.uptime % (60 * WIFI_RESCAN_MINUTES))) {
             if (!Wifi.scan_state) { Wifi.scan_state = 2; } // If wifi scan routine is free, use it. Otherwise, wait for next RESCAN TIME
           }