A7 GSM/GPS module

/*
The Ai Thinker A7 GSM/GPS module can be programmed using C language and the Ai Thinker A7 SDK. This example demonstrates how to send an SMS and receive GPS coordinates using the A7 module. It assumes that you have the Ai Thinker A7 SDK installed and configured for your development environment.

This example sends an SMS with the content "Hello from A7!" to the specified phone number. The sms_callback function is called when the SMS sending is completed, and the result is printed to the debug UART.

The GPS is initialized with GPS_Init() and started with GPS_Open(NULL). The GPS data will be automatically processed by the A7 SDK.

Before you can compile and upload this code to your A7 module, you will need to configure your development environment and the Ai Thinker A7 SDK. Follow the instructions in the Ai Thinker A7 SDK documentation to set up your development environment and create a new project. Then, add the main.c file to your project and compile it.

After successfully compiling the code, upload the generated firmware to your Ai Thinker A7 module using a USB-to-Serial converter and the firmware upload tool provided by Ai Thinker. Consult the A7 module's documentation for the specific steps to upload the firmware to your module.

Once the firmware is uploaded, the A7 module will automatically run the code. Ensure that the SIM card is inserted and correctly configured with the appropriate APN settings. The module will then send an SMS to the specified phone number with the message "Hello from A7!".

To receive the GPS coordinates, you will need to add code to handle the GPS data events from the A7 SDK. Consult the Ai Thinker A7 SDK documentation for more information on how to handle GPS events and parse the
*/

#include "api.h"
#include "api_sms.h"
#include "api_hal_uart.h"
#include "gps.h"

static void sms_callback(s32 result, u8 *buffer, u32 buf_len, void *userdata)
{
    Trace(1, "SMS send result:%d", result);
}

void MainTask(void *pData)
{
    API_Event_t *event = NULL;

    // Initialize UART1 for debugging
    UART_Config_t uartConfig = {
        .baudrate = UART_BAUD_RATE_115200,
        .dataBits = UART_DATA_BITS_8,
        .stopBits = UART_STOP_BITS_1,
        .parity = UART_PARITY_NONE,
        .rxCallback = NULL,
    };
    UART_Init(UART1, uartConfig);

    // Wait for the A7 to register to the network
    while (!INFO_GetSIMCardInfo(NULL))
    {
        OS_Sleep(1000);
    }

    // Send SMS
    u8 phone_number[] = "1234567890"; // Replace with your phone number
    u8 sms_content[] = "Hello from A7!";

    SMS_SendMessage(phone_number, sms_content, strlen(sms_content), sms_callback, NULL);

    // Initialize GPS
    GPS_Init();
    GPS_Open(NULL);

    while (1)
    {
        if (OS_WaitEvent(mainTaskHandle, (void **)&event, OS_TIME_OUT_WAIT_FOREVER))
        {
            EventDispatch(event);
            OS_Free(event->pParam1);
            OS_Free(event->pParam2);
            OS_Free(event);
        }
    }
}

void A7_main()
{
    mainTaskHandle = OS_CreateTask(MainTask,
                                   NULL, NULL, MAIN_TASK_STACK_SIZE, MAIN_TASK_PRIORITY, 0, 0, MAIN_TASK_NAME);
    OS_Run();
}