added test parts of the code for various errors

ESP32_PrusaConnectCam/camera.cpp

@@ -277,6 +277,7 @@ void Camera::CapturePhoto() {
         log->AddEvent(LogLevel_Info, F("Taking photo..."));
 
         /* capture final photo */
+        delay(5); // delay for camera stabilization. test it
         FrameBuffer = esp_camera_fb_get();
         if (!FrameBuffer) {
           log->AddEvent(LogLevel_Error, F("Camera capture failed! photo"));
@@ -476,7 +477,8 @@ void Camera::CopyPhoto(String* i_data, int i_from, int i_to) {
  * @return int - photo size
  */
 int Camera::GetPhotoSize() {
-  return FrameBuffer->len;
+  log->AddEvent(LogLevel_Verbose, "Photo size: " + String(FrameBuffer->len));
+  return (int) FrameBuffer->len;
 }
 
 /**

ESP32_PrusaConnectCam/cfg.cpp

@@ -258,7 +258,13 @@ void Configuration::GetFingerprint() {
 */
 void Configuration::SaveUint8(uint16_t address, uint8_t data) {
   EEPROM.write(address, data);
-  EEPROM.commit();
+
+  if (EEPROM.commit()) {
+    Log->AddEvent(LogLevel_Verbose, F("Write uint8_t done"));
+  } else {
+    Log->AddEvent(LogLevel_Error, F("Failed to write uint8_t"));
+    EEPROM.commit(); // try again
+  }
 }
 /**
    @info Function for save int8_t to EEPROM
@@ -268,7 +274,13 @@ void Configuration::SaveUint8(uint16_t address, uint8_t data) {
 */
 void Configuration::SaveInt8(uint16_t address, int8_t data) {
   EEPROM.write(address, data);
-  EEPROM.commit();
+
+  if (EEPROM.commit()) {
+    Log->AddEvent(LogLevel_Verbose, F("Write int8_t done"));
+  } else {
+    Log->AddEvent(LogLevel_Error, F("Failed to write int8_t"));
+    EEPROM.commit(); // try again
+  }
 }
 /**
    @info Function for save bool to EEPROM
@@ -278,7 +290,13 @@ void Configuration::SaveInt8(uint16_t address, int8_t data) {
 */
 void Configuration::SaveBool(uint16_t address, bool data) {
   EEPROM.write(address, data);
-  EEPROM.commit();
+
+  if (EEPROM.commit()) { 
+    Log->AddEvent(LogLevel_Verbose, F("Write bool done"));
+  } else {
+    Log->AddEvent(LogLevel_Error, F("Failed to write bool"));
+    EEPROM.commit(); // try again
+  }
 }
 /**
    @info Function for save uint16_t to EEPROM
@@ -292,7 +310,13 @@ void Configuration::SaveUint16(uint16_t address, uint16_t data) {
 
   EEPROM.write(address, highByte);
   EEPROM.write(address + 1, lowByte);
-  EEPROM.commit();
+
+  if (EEPROM.commit()) {
+    Log->AddEvent(LogLevel_Verbose, F("Write uint16_t done"));
+  } else {
+    Log->AddEvent(LogLevel_Error, F("Failed to write uint16_t"));
+    EEPROM.commit(); // try again
+  }
 }
 
 /**
@@ -311,8 +335,13 @@ void Configuration::SaveString(uint16_t address, uint16_t max_length, String dat
     for (uint16_t i = address + 1, j = 0; j < data.length(); i++, j++) {
       EEPROM.write(i, data.charAt(j));
     }
-    EEPROM.commit();
+    
-    Log->AddEvent(LogLevel_Verbose, F("Write string done"));
+    if (EEPROM.commit()) {
+      Log->AddEvent(LogLevel_Verbose, F("Write string done"));
+    } else {
+      Log->AddEvent(LogLevel_Error, F("Failed to write string"));
+      EEPROM.commit(); // try again
+    }
   } else {
     Log->AddEvent(LogLevel_Verbose, F("Skip write string"));
   }
@@ -331,7 +360,12 @@ void Configuration::SaveIpAddress(uint16_t address, String data) {
     EEPROM.write(address + 1, ip[1]);
     EEPROM.write(address + 2, ip[2]);
     EEPROM.write(address + 3, ip[3]);
-    EEPROM.commit();
+
+    if (EEPROM.commit()) {
+      Log->AddEvent(LogLevel_Verbose, F("Write IP address done"));
+    } else {
+      Log->AddEvent(LogLevel_Error, F("Failed to write IP address"));
+    }
   }
 }
 

ESP32_PrusaConnectCam/connect.cpp

@@ -78,7 +78,7 @@ bool PrusaConnect::SendDataToBackend(String *i_data, int i_data_length, String i
   WiFiClientSecure client;
   BackendReceivedStatus = "";
   bool ret = false;
-  log->AddEvent(LogLevel_Info, "Sending " + i_type + " to PrusaConnect");
+  log->AddEvent(LogLevel_Info, "Sending " + i_type + " to PrusaConnect, " + String(i_data_length) + " bytes");
 
   /* check fingerprint and token length */
   if ((Fingerprint.length() > 0) && (Token.length() > 0)) {
@@ -119,7 +119,7 @@ bool PrusaConnect::SendDataToBackend(String *i_data, int i_data_length, String i
         log->AddEvent(LogLevel_Verbose, F("Send data photo"));
         int index = 0;
         /* send data in fragments */
-        for (index = 0; index < i_data_length; index = index + PHOTO_FRAGMENT_SIZE) {
+        for (index = 0; index < i_data_length; index += PHOTO_FRAGMENT_SIZE) {
           camera->CopyPhoto(i_data, index, index + PHOTO_FRAGMENT_SIZE);
           client.print(*i_data);
           log->AddEvent(LogLevel_Verbose, String(i_data_length) + "/" + String(index));

ESP32_PrusaConnectCam/connect.h

@@ -62,7 +62,7 @@ private:
   Logs *log;                                      ///< pointer to logs object
   Camera *camera;                                 ///< pointer to camera object
 
-  bool SendDataToBackend(String *,int, String, String, String, SendDataToBackendType);
+  bool SendDataToBackend(String *, int, String, String, String, SendDataToBackendType);
 
 public:
   PrusaConnect(Configuration*, Logs*, Camera*);

ESP32_PrusaConnectCam/log.cpp

@@ -253,7 +253,7 @@ String Logs::GetSystemTime() {
     struct tm timeinfo;
     if (!getLocalTime(&timeinfo)) {
 #if (true == CONSOLE_VERBOSE_DEBUG)
-      Serial.println("Failed to obtain time");
+      Serial.println(F("Failed to obtain time"));
 #endif
       return ret;
     }

ESP32_PrusaConnectCam/serial_cfg.cpp

@@ -146,7 +146,7 @@ String lastTwoChars = command.substring(command.length() - 2);
     ESP.restart();
 
   } else if (command.startsWith("commandslist") && command.endsWith(";")) {
-    log->AddEvent(LogLevel_Warning, "--> Available commands");
+    log->AddEvent(LogLevel_Warning, F("--> Available commands"));
     PrintAvailableCommands();
 
   } else {