32单片机+ec01g获得gps位置代码
时间: 2023-07-16 14:13:33 浏览: 142
以下是32单片机+ec01g获得GPS位置的示例代码:
```
#include <stdio.h>
#include "esp_log.h"
#include "driver/gpio.h"
#include "driver/uart.h"
static const int RX_BUF_SIZE = 1024;
void app_main(void)
{
// 配置UART引脚
uart_config_t uart_config = {
.baud_rate = 9600,
.data_bits = UART_DATA_8_BITS,
.parity = UART_PARITY_DISABLE,
.stop_bits = UART_STOP_BITS_1,
.flow_ctrl = UART_HW_FLOWCTRL_DISABLE
};
uart_param_config(UART_NUM_1, &uart_config);
uart_set_pin(UART_NUM_1, GPIO_NUM_4, GPIO_NUM_5, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE);
// 配置GPIO引脚
gpio_config_t io_conf = {
.intr_type = GPIO_INTR_DISABLE,
.mode = GPIO_MODE_OUTPUT_OD,
.pull_down_en = GPIO_PULLDOWN_DISABLE,
.pull_up_en = GPIO_PULLUP_DISABLE,
.pin_bit_mask = (1ULL << GPIO_NUM_23)
};
gpio_config(&io_conf);
// 初始化串口接收缓冲区
uint8_t *data = (uint8_t *) malloc(RX_BUF_SIZE + 1);
memset(data, 0, RX_BUF_SIZE + 1);
// 发送指令获取GPS位置
uart_write_bytes(UART_NUM_1, "$GPGGA,0,0,0,0,0,0,0,0", 23);
// 等待GPS模块返回数据
int len = uart_read_bytes(UART_NUM_1, data, RX_BUF_SIZE, 1000 / portTICK_RATE_MS);
if (len == 0) {
ESP_LOGE("GPS", "No response from GPS module");
return;
}
// 解析GPS数据
char *pos = strstr((const char *) data, "$GPGGA,");
if (pos != NULL) {
pos += 7;
char *token = strtok(pos, ",");
int i = 0;
while (token != NULL && i < 4) {
token = strtok(NULL, ",");
i++;
}
// 输出解析结果
if (i == 4) {
ESP_LOGI("GPS", "Latitude: %s, Longitude: %s", token, strtok(NULL, ","));
} else {
ESP_LOGE("GPS", "Unable to parse GPS data");
}
} else {
ESP_LOGE("GPS", "Invalid GPS data");
}
// 释放资源
free(data);
}
```
此代码使用ESP32的UART和GPIO接口与EC01G GPS模块通信,发送指令获取GPS位置数据,然后解析并输出经度和纬度信息。请注意,此代码仅作为演示目的,您需要根据您的具体硬件和软件环境进行修改和调整。
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