STM32 cant send data with esp8266 thingspeak.what did I wrong? - stm32

Question

I am working on a project about send PWM values and time values(with RTC) from stm32 to wifi module and bluetooth module at the same time.I wrote a code for esp8266 and esp8266 connected to my phone.But didnt send any value to bluetooth module or thingspeak.What did I wrong?(I cant use HAL Library for this project)
static void Clear_ESPBuffer(void)
{
uint16_t i;
for(i=0;i<ESP8266BUFFER_LENGHT;i++)
g_arrui8ESP8266Buf[i] = 0;
ESPWriteIndex=0;
}
//esp8266 configuration
USART_InitStruct.USART_BaudRate = 115200;
USART_InitStruct.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStruct.USART_Mode = USART_Mode_Tx | USART_Mode_Rx;
USART_InitStruct.USART_Parity = USART_Parity_No;
USART_InitStruct.USART_StopBits = USART_StopBits_1;
USART_InitStruct.USART_WordLength = USART_WordLength_8b;
USART_Init(USART1, &USART_InitStruct);
//bluetooth modulu configuration
USART_InitStruct.USART_BaudRate = 115200;
USART_InitStruct.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStruct.USART_Mode = USART_Mode_Tx;
USART_InitStruct.USART_Parity = USART_Parity_No;
USART_InitStruct.USART_StopBits = USART_StopBits_1;
USART_InitStruct.USART_WordLength = USART_WordLength_8b;
USART_Init(USART3, &USART_InitStruct);
USART_Cmd(USART3, ENABLE); // USART3 aktif edilir.
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
USART_Cmd(USART1, ENABLE);
}
static void ESP8266_Init(void)
{
static uint8_t ESPInitCase=0;
switch(ESPInitCase)
{
case 0:
// Standart AT Komutu gonderilir , Cevabi OK olmalidir.
USART_puts(USART1,"AT\r\n");
Delay(1000000L);
ESPInitCase = 1;
break;
case 1:
if (strstr(g_arrui8ESP8266Buf,"OK") != NULL)
{
Clear_ESPBuffer();
USART_puts(USART3,"Module Erisildi\n");
ESPInitCase = 2;
}
else
{
Clear_ESPBuffer();
USART_puts(USART3,"Not Founded");
ESPInitCase = 0;
}
break;
case 2:
USART_puts(USART1,"AT+CWMODE?\r\n");
Delay(1000000L);
ESPInitCase = 3;
break;
case 3:
// Gelen cevap mode 1 'mi
if (strstr(g_arrui8ESP8266Buf,"+CWMODE:1") != NULL)
{
Clear_ESPBuffer();
USART_puts(USART3,"Config okey\n");
ESPInitCase = 4;
}
else
{
.
USART_puts(USART1,"AT+CWMODE=1\r\n");
USART_puts(USART1,"AT+RST\r\n");
Delay(1000000L);
Clear_ESPBuffer();
USART_puts(USART3,"Changed Mode.\n");
ESPInitCase = 2;
}
break;
case 4:
USART_puts(USART1,"AT+CWJAP=\"Wifi\",\"Password\"\r\n");
Delay(2000000L);
ESPInitCase = 5;
break;
case 5:
if (strstr(g_arrui8ESP8266Buf,"OK") != NULL)
{
Clear_ESPBuffer();
USART_puts(USART3,"Wifi Connected\n");
ESPInitCase = 6;
}
else
{
Delay(1000000L);
USART_puts(USART3,"waiting for wifi\n");
Delay(5000000L);
say2++;
if(say2==3)
{
USART_puts(USART3,"Not Connected\n");
ESPInitCase=8;
say2=0;
}
}
break;
case 6:
// For ıp adress
USART_puts(USART1,"AT+CIFSR\r\n");
Delay(1000000L);
ESPInitCase = 7;
break;
case 7:
if (strstr(g_arrui8ESP8266Buf,"ERROR") == NULL)
{
USART_puts(USART3," IP = \n");
USART_puts(USART3,&g_arrui8ESP8266Buf[11]);
Clear_ESPBuffer();
ESPInitCase=8;
}
else
{
Delay(1000000L);
USART_puts(USART3,"Try again.\n");
Clear_ESPBuffer();
ESPInitCase=6;
}
break;
case 8:
USART_puts(USART1,"AT+CIPSTART=\"TCP\",\"IP\",80\r\n");
// 1 saniye gecikme koyuyoruz.
Delay(1000000L);
ESPInitCase = 9;
break;
case 9:
if (strstr(g_arrui8ESP8266Buf,"CONNECT") != NULL)
{
Clear_ESPBuffer();
USART_puts(USART3,"connected to website\n");
ESPInitCase = 10;
}
else
{
Delay(1000000L);
USART_puts(USART3,"waiting for Website connection\n");
Delay(50000000L);
say++;
if(say==3)
{
USART_puts(USART3," Website didnt work .\n");
ESPInitCase=8;
say=0;
}
}
break;
case 10:
Value=Read_ADC(); // adc okunuyor
sprintf(transmitdata, "GET /update?key=9KT9JQA1PJXPTFJJ&field2=%d\r\n",value);
length=strlen(transmitdata);
length=length+2;
sprintf(transmitconf,"AT+CIPSEND=%d\r\n",length);
USART_puts(USART1,transmitconf);
Delay(10000000L);
if (strstr(g_arrui8ESP8266Buf,">") != NULL)
{
Clear_ESPBuffer();
USART_puts(USART1,transmitdata);
USART_puts(USART3,"transmitted data\n");
Delay(2000000L);
ESPInitCase=10;
}
else
{
Delay(3000000L);
USART_puts(USART3,"data length not okey\n");
ESPInitCase=8;
USART_puts(USART3,"trying to connect website again\n");
say3++;
if(say3==3)
{
USART_puts(USART3,"didnt connect.\n check config\n");
ESPInitCase=0;
say3=0;
}
}
break;
}
}
void USART1_IRQHandler(void)
{
if( USART_GetITStatus(USART1, USART_IT_RXNE) )
{
uint8_t Received_Byte = USART1->DR;
USART2->DR = Received_Byte;
if(Received_Byte != 0)
{
g_arrui8ESP8266Buf[ESPWriteIndex] = Received_Byte;
ESPWriteIndex++;
}
}
}