stm32f103c8t6通过atk1218获取经纬度，将经纬度数据通过sim800c短信发送到手机号

首先，您需要连接ATK1218和STM32F103C8T6，并编写代码以获取经纬度数据。这可以通过ATK1218的AT指令来实现。以下是一个示例代码片段：

#include <stdio.h>
#include "stm32f10x.h"

// USART2 initialization
void USART2_Init(void) {
    USART_InitTypeDef USART_InitStruct;
    GPIO_InitTypeDef GPIO_InitStructure;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_AFIO, ENABLE);
    RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);

    // Configure USART2 Tx (PA.02) as alternate function push-pull
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    // Configure USART2 Rx (PA.03) as input floating
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    // Configure USART2
    USART_StructInit(&USART_InitStruct);
    USART_InitStruct.USART_BaudRate = 9600;
    USART_InitStruct.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
    USART_Init(USART2, &USART_InitStruct);

    USART_Cmd(USART2, ENABLE);
}

// Send AT command to ATK1218
void send_AT_command(char* command) {
    char buffer[64];
    sprintf(buffer, "%s\r\n", command);
    USART_SendString(USART2, buffer);
}

// Read response from ATK1218
void read_AT_response(char* response) {
    char buffer[64];
    USART_ReceiveString(USART2, buffer);
    strcpy(response, buffer);
}

// Get GPS data from ATK1218
void get_GPS_data(float* latitude, float* longitude) {
    char command[16], response[64], *token;
    float lat, lon;

    // Send AT command to enable GPS
    send_AT_command("AT+CGNSPWR=1");

    // Send AT command to get GPS data
    send_AT_command("AT+CGNSINF");

    // Read response from ATK1218
    read_AT_response(response);

    // Parse GPS data from response
    token = strtok(response, ",");
    token = strtok(NULL, ",");
    lat = atof(token);
    token = strtok(NULL, ",");
    token = strtok(NULL, ",");
    lon = atof(token);

    // Convert latitude and longitude to degrees
    *latitude = lat / 100;
    *longitude = lon / 100;
}

int main(void) {
    float latitude, longitude;

    USART2_Init();

    // Get GPS data from ATK1218
    get_GPS_data(&latitude, &longitude);

    // TODO: Send GPS data via SIM800C SMS

    while(1) {
        // Main loop
    }
}

接下来，您需要使用SIM800C模块将经纬度数据发送到手机号码。您可以使用AT指令来控制SIM800C模块并发送短信。以下是一个示例代码片段：

// Send SMS via SIM800C
void send_SMS(char* phone_number, char* message) {
    char command[128], response[64];

    // Send AT command to set SMS mode
    send_AT_command("AT+CMGF=1");

    // Send AT command to set phone number
    sprintf(command, "AT+CMGS=\"%s\"", phone_number);
    send_AT_command(command);

    // Send message
    USART_SendString(USART2, message);
    USART_SendData(USART2, 26);

    // Wait for response
    read_AT_response(response);
}

int main(void) {
    float latitude, longitude;
    char message[128];

    USART2_Init();

    // Get GPS data from ATK1218
    get_GPS_data(&latitude, &longitude);

    // Send GPS data via SIM800C SMS
    sprintf(message, "Latitude: %f, Longitude: %f", latitude, longitude);
    send_SMS("+1234567890", message);

    while(1) {
        // Main loop
    }
}

请注意，这只是一个基本示例代码，您需要根据您的具体情况进行修改。例如，您需要更改SIM800C的串口配置，以便与STM32F103C8T6进行通信。您还需要根据您的运营商要求进行SIM卡和短信服务的配置。