Delete/add_device cycle works smoothly now. All cases tested, next up is using position and calibration data to move motors and use encoders etc.

include/BLE.cpp

@@ -12,6 +12,7 @@ std::atomic<bool> credsGiven{false};
 std::atomic<bool> tokenGiven{false};
 std::atomic<bool> isBLEClientConnected{false};
 std::atomic<bool> scanBlock{false};
+std::atomic<bool> finalAuth{false};
 std::mutex dataMutex;
 
 wifi_auth_mode_t auth;
@@ -29,6 +30,8 @@ std::atomic<NimBLECharacteristic*> tokenChar = nullptr;
 std::atomic<NimBLECharacteristic*> ssidRefreshChar = nullptr;
 
 NimBLEAdvertising* initBLE() {
+  finalAuth = false;
+  
   NimBLEDevice::init("BlindMaster-C6");
   
   // Optional: Boost power for better range (ESP32-C6 supports up to +20dBm)
@@ -101,7 +104,6 @@ NimBLEAdvertising* initBLE() {
   pAdvertising->start();
 
   printf("BLE Started. Waiting...\n");
-  flag_scan_requested = true;
 
   return pAdvertising;
 }
@@ -223,7 +225,9 @@ bool BLEtick(NimBLEAdvertising* pAdvertising) {
     } 
     else printf("Failed to parse JSON response\n");
 
+    finalAuth = true;
     notifyAuthStatus(success);
+    if (success) NimBLEDevice::deinit(true); // deinitialize BLE
     return success;
   }
   return false;
@@ -231,7 +235,7 @@ bool BLEtick(NimBLEAdvertising* pAdvertising) {
 
 void reset() {
   esp_wifi_scan_stop();
-  if (!connected) esp_wifi_disconnect();
+  if (!finalAuth) esp_wifi_disconnect();
   scanBlock = false;
   flag_scan_requested = false;
   credsGiven = false;
@@ -260,8 +264,13 @@ void MyCharCallbacks::onWrite(NimBLECharacteristic* pChar, NimBLEConnInfo& connI
     
     printf("onWrite called! UUID: %s, Value length: %d\n", uuidStr.c_str(), val.length());
     
+    // Load atomic pointers for comparison
+    NimBLECharacteristic* currentCredsChar = credsChar.load();
+    NimBLECharacteristic* currentTokenChar = tokenChar.load();
+    NimBLECharacteristic* currentRefreshChar = ssidRefreshChar.load();
+    
     // Check which characteristic was written to
-    if (pChar == credsChar) {
+    if (pChar == currentCredsChar) {
       // Credentials JSON characteristic
       if (val.length() > 0) {
         printf("Received JSON: %s\n", val.c_str());
@@ -315,7 +324,7 @@ void MyCharCallbacks::onWrite(NimBLECharacteristic* pChar, NimBLEConnInfo& connI
         }
       }
     }
-    else if (pChar == tokenChar) {
+    else if (pChar == currentTokenChar) {
       if (val.length() > 0) {
         printf("Received Token: %s\n", val.c_str());
         std::lock_guard<std::mutex> lock(dataMutex);
@@ -323,7 +332,7 @@ void MyCharCallbacks::onWrite(NimBLECharacteristic* pChar, NimBLEConnInfo& connI
         tokenGiven = true;
       }
     }
-    else if (pChar == ssidRefreshChar) {
+    else if (pChar == currentRefreshChar) {
       if (val == "Start") {
         // Refresh characteristic
         printf("Refresh Requested\n");

include/WiFi.hpp

@@ -29,6 +29,4 @@ class WiFi {
 
 extern WiFi bmWiFi;
 
-void scanAndUpdateSSIDList();
-
 #endif

include/setup.cpp

@@ -1,6 +1,10 @@
 #include "setup.hpp"
 #include "BLE.hpp"
 #include "WiFi.hpp"
+#include "nvs_flash.h"
+#include "defines.h"
+#include "bmHTTP.hpp"
+#include "socketIO.hpp"
 
 void initialSetup() {
   printf("Entered Setup\n");
@@ -10,3 +14,94 @@ void initialSetup() {
     vTaskDelay(pdMS_TO_TICKS(100));
   }
 }
+
+void setupLoop() {
+  bool initSuccess = false;
+  while(!initSuccess) {
+    nvs_handle_t WiFiHandle;
+    if (nvs_open(nvsWiFi, NVS_READONLY, &WiFiHandle) == ESP_OK) {
+      size_t ssidSize;
+      esp_err_t WiFiPrefsError = nvs_get_str(WiFiHandle, ssidTag, NULL, &ssidSize);
+      size_t pwSize;
+      WiFiPrefsError |= nvs_get_str(WiFiHandle, passTag, NULL, &pwSize);
+      uint8_t authMode;
+      WiFiPrefsError |= nvs_get_u8(WiFiHandle, authTag, &authMode);
+      printf("World\n");
+      if (WiFiPrefsError == ESP_ERR_NVS_NOT_FOUND) {
+        printf("Didn't find creds\n");
+        // Make the RGB LED a certain color (Blue?)
+        nvs_close(WiFiHandle);
+        initialSetup();
+      } else if (WiFiPrefsError == ESP_OK) {
+        char ssid[ssidSize];
+        nvs_get_str(WiFiHandle, ssidTag, ssid, &ssidSize);
+        char pw[pwSize];
+        nvs_get_str(WiFiHandle, passTag, pw, &pwSize);
+        nvs_close(WiFiHandle);
+        if (!bmWiFi.attemptConnect(ssid, pw, (wifi_auth_mode_t)authMode)) {
+          // Make RGB LED certain color (Blue?)
+          printf("Found credentials, failed to connect.\n");
+          initialSetup();
+        }
+        else {
+          printf("Connected to WiFi from NVS credentials\n");
+          nvs_handle_t authHandle;
+          if (nvs_open(nvsAuth, NVS_READONLY, &authHandle) == ESP_OK) {
+            size_t tokenSize;
+            if (nvs_get_str(authHandle, tokenTag, NULL, &tokenSize) == ESP_OK) {
+              char token[tokenSize];
+              nvs_get_str(authHandle, tokenTag, token, &tokenSize);
+              nvs_close(authHandle);
+              
+              // Use permanent device token to connect to Socket.IO
+              // The server will verify the token during connection handshake
+              webToken = std::string(token);
+              printf("Connecting to Socket.IO server with saved token...\n");
+              statusResolved = false;
+              initSocketIO();
+              
+              // Wait for device_init message from server with timeout
+              int timeout_count = 0;
+              const int MAX_TIMEOUT = 60; // 10 seconds (20 * 500ms)
+              while (!statusResolved && timeout_count < MAX_TIMEOUT) {
+                printf("Waiting for device_init message... (%d/%d)\n", timeout_count, MAX_TIMEOUT);
+                vTaskDelay(pdMS_TO_TICKS(500));
+                timeout_count++;
+              }
+              
+              if (timeout_count >= MAX_TIMEOUT) {
+                printf("Timeout waiting for device_init - connection failed\n");
+                stopSocketIO();
+                initSuccess = false;
+                initialSetup();
+              } else {
+                initSuccess = connected;
+                if (!initSuccess) {
+                  printf("Device authentication failed - entering setup\n");
+                  initialSetup();
+                }
+              }
+            }
+            else {
+              printf("Token read unsuccessful, entering setup.\n");
+              initialSetup();
+            }
+          }
+          else {
+            printf("Auth NVS segment doesn't exist, entering setup.\n");
+            initialSetup();
+          }
+        }
+      } else {
+        // Make RGB LED certain color (Blue?)
+        nvs_close(WiFiHandle);
+        printf("Program error in Wifi Connection\n");
+        initialSetup();
+      }
+    }
+    else {
+      printf("WiFi NVS segment doesn't exist, entering setup.\n");
+      initialSetup();
+    }
+  }
+}

include/setup.hpp

@@ -2,5 +2,6 @@
 #define SETUP_H
 
 void initialSetup();
+void setupLoop();
 
 #endif

include/socketIO.cpp

@@ -8,7 +8,7 @@
 static esp_socketio_client_handle_t io_client;
 static esp_socketio_packet_handle_t tx_packet = NULL;
 
-std::atomic<bool> statusResolved{false};
+std::atomic<bool> statusResolved{true};
 std::atomic<bool> connected{false};
 
 // Event handler for Socket.IO events
@@ -29,10 +29,9 @@ static void socketio_event_handler(void *handler_args, esp_event_base_t base,
             // Check if connected to default namespace
             char *nsp = esp_socketio_packet_get_nsp(packet);
             if (strcmp(nsp, "/") == 0) {
-                printf("Connected to default namespace\n");
+                printf("Connected to default namespace - waiting for device_init...\n");
             }
-            connected = true;
+            // Don't set connected yet - wait for device_init message from server
-            statusResolved = true;
             break;
         }
             
@@ -43,6 +42,82 @@ static void socketio_event_handler(void *handler_args, esp_event_base_t base,
             if (json) {
                 char *json_str = cJSON_Print(json);
                 printf("Data: %s\n", json_str);
+                
+                // Check if this is an array event
+                if (cJSON_IsArray(json) && cJSON_GetArraySize(json) >= 2) {
+                    cJSON *eventName = cJSON_GetArrayItem(json, 0);
+                    
+                    if (cJSON_IsString(eventName)) {
+                        // Handle error event
+                        if (strcmp(eventName->valuestring, "error") == 0) {
+                            printf("Received error message from server\n");
+                            cJSON *data = cJSON_GetArrayItem(json, 1);
+                            
+                            if (data) {
+                                cJSON *message = cJSON_GetObjectItem(data, "message");
+                                if (message && cJSON_IsString(message)) {
+                                    printf("Server error: %s\n", message->valuestring);
+                                }
+                            }
+                            
+                            // Mark connection as failed
+                            connected = false;
+                            statusResolved = true;
+                        }
+                        // Handle device_init event
+                        else if (strcmp(eventName->valuestring, "device_init") == 0) {
+                            printf("Received device_init message\n");
+                            cJSON *data = cJSON_GetArrayItem(json, 1);
+                            
+                            if (data) {
+                                cJSON *type = cJSON_GetObjectItem(data, "type");
+                                if (type && strcmp(type->valuestring, "success") == 0) {
+                                    printf("Device authenticated successfully\n");
+                                    
+                                    // Parse device state
+                                    cJSON *deviceState = cJSON_GetObjectItem(data, "deviceState");
+                                    if (cJSON_IsArray(deviceState)) {
+                                        int stateCount = cJSON_GetArraySize(deviceState);
+                                        printf("Device has %d peripheral(s):\n", stateCount);
+                                        
+                                        for (int i = 0; i < stateCount; i++) {
+                                            cJSON *periph = cJSON_GetArrayItem(deviceState, i);
+                                            int port = cJSON_GetObjectItem(periph, "port")->valueint;
+                                            int lastPos = cJSON_GetObjectItem(periph, "lastPos")->valueint;
+                                            bool awaitCalib = cJSON_IsTrue(cJSON_GetObjectItem(periph, "awaitCalib"));
+                                            bool calibrated = cJSON_IsTrue(cJSON_GetObjectItem(periph, "calibrated"));
+                                            // TODO: UPDATE MOTOR/ENCODER STATES BASED ON THIS, as well as the successive websocket updates.
+                                            printf("  Port %d: pos=%d, calibrated=%d, awaitCalib=%d\n",
+                                                   port, lastPos, calibrated, awaitCalib);
+                                        }
+                                    }
+                                    
+                                    // Now mark as connected
+                                    connected = true;
+                                    statusResolved = true;
+                                } else {
+                                    printf("Device authentication failed\n");
+                                    connected = false;
+                                    statusResolved = true;
+                                }
+                            }
+                        }
+                        // Handle device_deleted event
+                        else if (strcmp(eventName->valuestring, "device_deleted") == 0) {
+                            printf("Device has been deleted from account - disconnecting\n");
+                            cJSON *data = cJSON_GetArrayItem(json, 1);
+                            if (data) {
+                                cJSON *message = cJSON_GetObjectItem(data, "message");
+                                if (message && cJSON_IsString(message)) {
+                                    printf("Server message: %s\n", message->valuestring);
+                                }
+                            }
+                            connected = false;
+                            statusResolved = true;
+                        }
+                    }
+                }
+                
                 free(json_str);
             }
             break;
@@ -61,17 +136,19 @@ static void socketio_event_handler(void *handler_args, esp_event_base_t base,
                 }
             }
             
-            // Disconnect and enter setup mode
+            // Set flags to indicate connection failure
-            printf("Disconnecting and entering setup mode...\n");
-            esp_socketio_client_close(io_client, pdMS_TO_TICKS(1000));
-
-            esp_socketio_client_destroy(io_client);
-            initialSetup();
             connected = false;
             statusResolved = true;
             break;
         }
     }
+    
+    // Handle WebSocket-level disconnections
+    if (data->websocket_event_id == WEBSOCKET_EVENT_DISCONNECTED) {
+        printf("WebSocket disconnected\n");
+        connected = false;
+        statusResolved = true;
+    }
 }
 
 void initSocketIO() {
@@ -92,6 +169,18 @@ void initSocketIO() {
     esp_socketio_client_start(io_client);
 }
 
+void stopSocketIO() {
+    if (io_client != NULL) {
+        printf("Stopping Socket.IO client...\n");
+        esp_socketio_client_close(io_client, pdMS_TO_TICKS(1000));
+        esp_socketio_client_destroy(io_client);
+        io_client = NULL;
+        tx_packet = NULL;
+        connected = false;
+        statusResolved = false;
+    }
+}
+
 // Function to emit 'calib_done' as expected by your server
 void emitCalibDone(int port) {
     // Set packet header: EIO MESSAGE type, SIO EVENT type, default namespace "/"

include/socketIO.hpp

@@ -8,6 +8,9 @@ extern std::atomic<bool> connected;
 // Initialize Socket.IO client and connect to server
 void initSocketIO();
 
+// Stop and destroy Socket.IO client
+void stopSocketIO();
+
 // Emit calibration done event to server
 void emitCalibDone(int port);
 

src/main.cpp

@@ -3,12 +3,9 @@
 #include "defines.h"
 #include "nvs_flash.h"
 #include "NimBLEDevice.h"
-#include "BLE.hpp"
 #include "WiFi.hpp"
 #include "setup.hpp"
-#include "bmHTTP.hpp"
 #include "socketIO.hpp"
-#include "cJSON.h"
 
 extern "C" void app_main() {
   printf("Hello ");
@@ -22,80 +19,23 @@ extern "C" void app_main() {
 
   bmWiFi.init();
 
-  bool initSuccess = false;
+  setupLoop();
-  
-  while(!initSuccess) {
-    nvs_handle_t WiFiHandle;
-    if (nvs_open(nvsWiFi, NVS_READONLY, &WiFiHandle) == ESP_OK) {
-      size_t ssidSize;
-      esp_err_t WiFiPrefsError = nvs_get_str(WiFiHandle, ssidTag, NULL, &ssidSize);
-      size_t pwSize;
-      WiFiPrefsError |= nvs_get_str(WiFiHandle, passTag, NULL, &pwSize);
-      uint8_t authMode;
-      WiFiPrefsError |= nvs_get_u8(WiFiHandle, authTag, &authMode);
-      printf("World\n");
-      if (WiFiPrefsError == ESP_ERR_NVS_NOT_FOUND) {
-        printf("Didn't find creds\n");
-        // Make the RGB LED a certain color (Blue?)
-        nvs_close(WiFiHandle);
-        initialSetup();
-      } else if (WiFiPrefsError == ESP_OK) {
-        char ssid[ssidSize];
-        nvs_get_str(WiFiHandle, ssidTag, ssid, &ssidSize);
-        char pw[pwSize];
-        nvs_get_str(WiFiHandle, passTag, pw, &pwSize);
-        nvs_close(WiFiHandle);
-        if (!bmWiFi.attemptConnect(ssid, pw, (wifi_auth_mode_t)authMode)) {
-          // Make RGB LED certain color (Blue?)
-          printf("Found credentials, failed to connect.\n");
-          initialSetup();
-        }
-        else {
-          printf("Connected to WiFi from NVS credentials\n");
-          nvs_handle_t authHandle;
-          if (nvs_open(nvsAuth, NVS_READONLY, &authHandle) == ESP_OK) {
-            size_t tokenSize;
-            if (nvs_get_str(authHandle, tokenTag, NULL, &tokenSize) == ESP_OK) {
-              char token[tokenSize];
-              nvs_get_str(authHandle, tokenTag, token, &tokenSize);
-              nvs_close(authHandle);
-              
-              // Use permanent device token to connect to Socket.IO
-              // The server will verify the token during connection handshake
-              webToken = std::string(token);
-              printf("Connecting to Socket.IO server with saved token...\n");
-              initSocketIO();
-              while (!statusResolved) vTaskDelay(pdMS_TO_TICKS(100));
-              initSuccess = connected;
-            }
-            else {
-              printf("Token read unsuccessful, entering setup.\n");
-              initialSetup();
-            }
-          }
-          else {
-            printf("Auth NVS segment doesn't exist, entering setup.\n");
-            initialSetup();
-          }
-        }
-      } else {
-        // Make RGB LED certain color (Blue?)
-        nvs_close(WiFiHandle);
-        printf("Program error in Wifi Connection\n");
-        initialSetup();
-      }
-    }
-    else {
-      printf("WiFi NVS segment doesn't exist, entering setup.\n");
-      initialSetup();
-    }
-  }
   
+  statusResolved = false;
 
   // Main loop
   while (1) {
+    if (statusResolved) {
+      if (!connected) {
+        printf("Disconnected! Beginning setup loop.\n");
+        stopSocketIO();
+        setupLoop();
+      }
+      else printf("Reconnected!\n");
+      statusResolved = false;
+    }
     // Your main application logic here
     vTaskDelay(pdMS_TO_TICKS(1000));
-    printf("Main Loop\n");
+    printf("loop\n");
   }
 }