{"id":50515,"date":"2025-08-10T09:44:02","date_gmt":"2025-08-10T01:44:02","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/50515.html"},"modified":"2025-08-10T09:44:02","modified_gmt":"2025-08-10T01:44:02","slug":"%e5%9f%ba%e4%ba%8estm32%e5%8d%95%e7%89%87%e6%9c%ba%e6%99%ba%e8%83%bd%e6%89%8b%e8%a1%a8%e6%89%8b%e7%8e%afgsm%e7%9f%ad%e4%bf%a1%e4%b8%8a%e6%8a%a5gps%e5%ae%9a%e4%bd%8d%e6%a0%a1%e6%97%b6","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/50515.html","title":{"rendered":"\u57fa\u4e8eSTM32\u5355\u7247\u673a\u667a\u80fd\u624b\u8868\u624b\u73afGSM\u77ed\u4fe1\u4e0a\u62a5GPS\u5b9a\u4f4d\u6821\u65f6"},"content":{"rendered":"<h2>1. \u7cfb\u7edf\u529f\u80fd\u4ecb\u7ecd<\/h2>\n<p>\u672c\u8bbe\u8ba1\u57fa\u4e8eSTM32\u5355\u7247\u673a&#xff0c;\u7ed3\u5408GPS\u5b9a\u4f4d\u6a21\u5757\u3001GSM\u77ed\u4fe1\u6a21\u5757\u3001LCD1602\u6db2\u6676\u663e\u793a\u5c4f\u3001\u6309\u952e\u53caLED\u6307\u793a\u706f&#xff0c;\u6784\u5efa\u4e00\u4e2a\u667a\u80fd\u624b\u8868\u624b\u73af\u7cfb\u7edf\u3002\u7cfb\u7edf\u80fd\u591f\u5b9e\u65f6\u83b7\u53d6\u5f53\u524d\u7ecf\u7eac\u5ea6\u3001\u65f6\u95f4\u65e5\u671f\u4fe1\u606f&#xff0c;\u901a\u8fc7\u6db2\u6676\u5c4f\u663e\u793a&#xff0c;\u652f\u6301\u77ed\u4fe1\u8fdc\u7a0b\u4ea4\u4e92\u548c\u53d1\u9001\u4f4d\u7f6e\u4fe1\u606f\u3002\u5177\u5907\u624b\u7535\u7b52\u7167\u660e\u529f\u80fd&#xff0c;\u5e76\u901a\u8fc7\u7535\u4f4d\u5668\u8c03\u8282\u6db2\u6676\u5c4f\u6e05\u6670\u5ea6&#xff0c;\u6ee1\u8db3\u65e5\u5e38\u4f7f\u7528\u9700\u6c42\u3002\u8be5\u7cfb\u7edf\u7279\u522b\u9002\u5408\u8001\u5e74\u4eba\u3001\u6237\u5916\u8fd0\u52a8\u8005\u7b49\u7fa4\u4f53&#xff0c;\u589e\u5f3a\u5b89\u5168\u4fdd\u969c\u548c\u4fbf\u6377\u5b9a\u4f4d\u3002<\/p>\n<p>\u4e3b\u8981\u529f\u80fd\u5305\u62ec&#xff1a;<\/p>\n<ul>\n<li>\u5229\u7528GPS\u6a21\u5757\u83b7\u53d6\u5e76\u89e3\u6790\u5f53\u524d\u5730\u7406\u7ecf\u7eac\u5ea6\u548c\u65f6\u95f4\u4fe1\u606f&#xff1b;<\/li>\n<li>LCD1602\u6db2\u6676\u663e\u793a\u7ecf\u7eac\u5ea6\u548c\u65f6\u95f4\u65e5\u671f&#xff0c;\u7528\u6237\u53ef\u901a\u8fc7\u6309\u952e\u5207\u6362\u663e\u793a\u5185\u5bb9&#xff1b;<\/li>\n<li>\u91c7\u7528\u7535\u4f4d\u5668\u8c03\u8282LCD\u5bf9\u6bd4\u5ea6&#xff0c;\u63d0\u5347\u663e\u793a\u6548\u679c&#xff1b;<\/li>\n<li>\u5177\u5907\u624b\u7535\u7b52\u529f\u80fd&#xff0c;\u901a\u8fc7\u6309\u952e\u63a7\u5236LED\u706f\u7684\u5f00\u542f\u4e0e\u5173\u95ed&#xff1b;<\/li>\n<li>\u7528\u6237\u6309\u952e\u53d1\u9001\u5b9a\u4f4d\u77ed\u4fe1&#xff0c;\u901a\u8fc7GSM\u6a21\u5757\u53d1\u9001\u77ed\u4fe1\u7ed9\u6307\u5b9a\u8054\u7cfb\u4eba&#xff1b;<\/li>\n<li>\u652f\u6301\u8fdc\u7a0b\u77ed\u4fe1\u6307\u4ee4\u201cGET\u201d&#xff0c;\u81ea\u52a8\u56de\u590d\u5f53\u524d\u7ecf\u7eac\u5ea6\u548c\u65f6\u95f4\u4fe1\u606f&#xff1b;<\/li>\n<li>GSM\u6a21\u5757\u72b6\u6001\u901a\u8fc7\u6307\u793a\u706f\u663e\u793a&#xff0c;\u4fbf\u4e8e\u7528\u6237\u4e86\u89e3\u77ed\u4fe1\u5904\u7406\u8fdb\u7a0b&#xff1b;<\/li>\n<li>\u7cfb\u7edf\u7535\u6e90\u8bbe\u8ba1\u652f\u63015V\/2A\u4f9b\u7535&#xff0c;GPS\u5929\u7ebf\u9700\u7f6e\u4e8e\u9732\u5929\u4f4d\u7f6e\u4ee5\u4fdd\u8bc1\u4fe1\u53f7\u8d28\u91cf\u3002<\/li>\n<\/ul>\n<h2>2. \u7cfb\u7edf\u7535\u8def\u8bbe\u8ba1<\/h2>\n<p>\u672c\u7cfb\u7edf\u7535\u8def\u7531STM32\u5355\u7247\u673a\u4f5c\u4e3a\u6838\u5fc3\u63a7\u5236\u5668&#xff0c;\u5916\u56f4\u96c6\u6210\u591a\u4e2a\u529f\u80fd\u6a21\u5757&#xff0c;\u5305\u62ecGPS\u6a21\u5757\u3001GSM\u6a21\u5757\u3001LCD1602\u663e\u793a\u6a21\u5757\u3001\u6309\u952e\u8f93\u5165\u6a21\u5757\u3001LED\u706f\u63a7\u5236\u6a21\u5757\u4ee5\u53ca\u7535\u6e90\u7ba1\u7406\u6a21\u5757\u3002\u5404\u6a21\u5757\u7d27\u5bc6\u914d\u5408&#xff0c;\u5171\u540c\u5b8c\u6210\u5b9a\u4f4d\u3001\u663e\u793a\u3001\u901a\u4fe1\u548c\u7528\u6237\u4ea4\u4e92\u529f\u80fd\u3002<\/p>\n<h3>2.1 STM32\u5355\u7247\u673a\u6838\u5fc3\u63a7\u5236\u6a21\u5757<\/h3>\n<p>STM32\u5355\u7247\u673a\u662f\u7cfb\u7edf\u7684\u5927\u8111&#xff0c;\u8d1f\u8d23\u5404\u6a21\u5757\u6570\u636e\u91c7\u96c6\u3001\u5904\u7406\u4e0e\u63a7\u5236\u3002<\/p>\n<ul>\n<li>\u91c7\u7528STM32F103C8T6\u6838\u5fc3\u677f&#xff0c;\u5177\u5907\u8f83\u9ad8\u7684\u8fd0\u7b97\u901f\u5ea6\u548c\u4e30\u5bcc\u7684\u5916\u8bbe\u63a5\u53e3&#xff1b;<\/li>\n<li>\u914d\u5907\u591a\u8defUART\u63a5\u53e3&#xff0c;\u5206\u522b\u8fde\u63a5GPS\u6a21\u5757\u548cGSM\u6a21\u5757&#xff0c;\u5b8c\u6210\u6570\u636e\u901a\u4fe1&#xff1b;<\/li>\n<li>\u63a7\u5236LCD1602\u663e\u793a\u6a21\u5757&#xff0c;\u5b9e\u73b0\u754c\u9762\u663e\u793a\u5207\u6362&#xff1b;<\/li>\n<li>\u8bfb\u53d6\u6309\u952e\u8f93\u5165&#xff0c;\u54cd\u5e94\u7528\u6237\u64cd\u4f5c&#xff1b;<\/li>\n<li>\u63a7\u5236LED\u6307\u793a\u706f\u53ca\u624b\u7535\u7b52LED\u5f00\u5173&#xff1b;<\/li>\n<li>\u901a\u8fc7ADC\u901a\u9053\u91c7\u96c6\u7535\u4f4d\u5668\u6a21\u62df\u91cf&#xff0c;\u5b9e\u73b0LCD\u5bf9\u6bd4\u5ea6\u8c03\u8282&#xff1b;<\/li>\n<li>\u7535\u6e90\u63a5\u53e3\u8bbe\u8ba1\u652f\u63015V\/2A\u8f93\u5165&#xff0c;\u7a33\u5b9a\u5355\u7247\u673a\u53ca\u6a21\u5757\u4f9b\u7535\u3002<\/li>\n<\/ul>\n<h3>2.2 GPS\u5b9a\u4f4d\u6a21\u5757\u7535\u8def<\/h3>\n<p>GPS\u6a21\u5757\u4e3b\u8981\u8d1f\u8d23\u536b\u661f\u4fe1\u53f7\u63a5\u6536&#xff0c;\u63d0\u4f9b\u5b9e\u65f6\u5b9a\u4f4d\u548c\u6821\u65f6\u4fe1\u606f\u3002<\/p>\n<ul>\n<li>\u901a\u8fc7UART\u4e32\u53e3\u4e0eSTM32\u901a\u4fe1&#xff0c;\u4f20\u8f93NMEA\u683c\u5f0f\u5b9a\u4f4d\u6570\u636e&#xff1b;<\/li>\n<li>\u6a21\u5757\u5fc5\u987b\u914d\u5907\u9ad8\u589e\u76caGPS\u5929\u7ebf&#xff0c;\u4e14\u5929\u7ebf\u7f6e\u4e8e\u9732\u5929\u4f4d\u7f6e&#xff0c;\u786e\u4fdd\u826f\u597d\u4fe1\u53f7\u63a5\u6536&#xff1b;<\/li>\n<li>\u4f9b\u7535\u7a33\u5b9a&#xff0c;\u91c7\u75283.3V\u62165V\u7a33\u538b\u4f9b\u7535\u8bbe\u8ba1&#xff1b;<\/li>\n<li>\u7535\u8def\u4e2d\u5305\u542b\u5fc5\u8981\u7684\u6ee4\u6ce2\u7535\u5bb9&#xff0c;\u51cf\u5c11\u7535\u78c1\u5e72\u6270&#xff0c;\u4fdd\u8bc1\u6570\u636e\u7a33\u5b9a\u3002<\/li>\n<\/ul>\n<h3>2.3 GSM\u77ed\u4fe1\u6a21\u5757\u7535\u8def<\/h3>\n<p>GSM\u6a21\u5757\u7528\u4e8e\u77ed\u4fe1\u6536\u53d1\u529f\u80fd&#xff0c;\u5b9e\u73b0\u5b9a\u4f4d\u4fe1\u606f\u53d1\u9001\u53ca\u8fdc\u7a0b\u6307\u4ee4\u63a7\u5236\u3002<\/p>\n<ul>\n<li>\u901a\u8fc7UART\u4e32\u53e3\u4e0e\u5355\u7247\u673a\u901a\u4fe1&#xff0c;\u652f\u6301\u6807\u51c6AT\u6307\u4ee4\u63a7\u5236&#xff1b;<\/li>\n<li>\u8bbe\u6709SIM\u5361\u5ea7&#xff0c;\u652f\u63012G\u62163G\u7f51\u7edc\u8986\u76d6&#xff1b;<\/li>\n<li>\u8bbe\u8ba1\u4e13\u7528\u7a33\u538b\u548c\u6ee4\u6ce2\u7535\u8def&#xff0c;\u4fdd\u8bc1\u6a21\u5757\u901a\u4fe1\u7a33\u5b9a&#xff1b;<\/li>\n<li>\u72b6\u6001\u6307\u793aLED\u663e\u793a\u77ed\u4fe1\u6a21\u5757\u521d\u59cb\u5316\u548c\u77ed\u4fe1\u53d1\u9001\u72b6\u6001&#xff1b;<\/li>\n<li>\u4f9b\u7535\u8981\u6c42\u8f83\u9ad8&#xff0c;\u7535\u6d41\u5cf0\u503c\u53ef\u80fd\u8fbe\u52302A&#xff0c;\u7535\u6e90\u8bbe\u8ba1\u9700\u6ee1\u8db3\u6b64\u9700\u6c42\u3002<\/li>\n<\/ul>\n<h3>2.4 LCD1602\u6db2\u6676\u663e\u793a\u6a21\u5757\u7535\u8def<\/h3>\n<p>LCD1602\u7528\u4e8e\u663e\u793a\u5f53\u524d\u7684\u7ecf\u7eac\u5ea6\u3001\u65f6\u95f4\u548c\u65e5\u671f\u4fe1\u606f\u3002<\/p>\n<ul>\n<li>\u4e0e\u5355\u7247\u673a\u901a\u8fc7GPIO\u53e3\u6216I2C\/SPI\u901a\u4fe1\u8fde\u63a5&#xff0c;\u5b8c\u6210\u6570\u636e\u5237\u65b0&#xff1b;<\/li>\n<li>\u4f9b\u7535\u7535\u538b\u4e3a5V&#xff0c;\u5185\u7f6e\u80cc\u5149\u8bbe\u8ba1&#xff1b;<\/li>\n<li>\u901a\u8fc7\u7535\u4f4d\u5668\u8c03\u8282\u5bf9\u6bd4\u5ea6&#xff0c;\u5b9e\u73b0\u663e\u793a\u6e05\u6670\u5ea6\u53ef\u8c03&#xff1b;<\/li>\n<li>\u7535\u4f4d\u5668\u63a5\u5165\u5355\u7247\u673aADC&#xff0c;\u65b9\u4fbf\u5b9e\u65f6\u52a8\u6001\u8c03\u8282\u3002<\/li>\n<\/ul>\n<h3>2.5 \u6309\u952e\u8f93\u5165\u6a21\u5757\u7535\u8def<\/h3>\n<p>\u7cfb\u7edf\u8bbe\u8ba1\u4e86\u4e09\u4e2a\u6309\u952e&#xff0c;\u5b9e\u73b0\u663e\u793a\u5185\u5bb9\u5207\u6362\u3001\u624b\u7535\u7b52\u63a7\u5236\u53ca\u77ed\u4fe1\u53d1\u9001\u529f\u80fd\u3002<\/p>\n<ul>\n<li>\u6309\u952e\u8fde\u63a5\u5355\u7247\u673aGPIO\u53e3&#xff0c;\u914d\u5907\u4e0a\u62c9\u7535\u963b&#xff0c;\u9632\u6b62\u4fe1\u53f7\u6d6e\u7a7a&#xff1b;<\/li>\n<li>\u6309\u952e\u91c7\u7528\u53bb\u6296\u52a8\u7535\u8def\u6216\u8f6f\u4ef6\u53bb\u6296\u52a8\u5904\u7406&#xff0c;\u63d0\u5347\u6309\u952e\u54cd\u5e94\u51c6\u786e\u5ea6&#xff1b;<\/li>\n<li>\u4e0d\u540c\u6309\u952e\u89e6\u53d1\u5bf9\u5e94\u529f\u80fd&#xff0c;\u652f\u6301\u4e2d\u65ad\u6216\u8f6e\u8be2\u65b9\u5f0f\u91c7\u96c6\u3002<\/li>\n<\/ul>\n<h3>2.6 LED\u6307\u793a\u706f\u53ca\u624b\u7535\u7b52\u63a7\u5236\u7535\u8def<\/h3>\n<ul>\n<li>LED\u6307\u793a\u706f\u7528\u4e8e\u663e\u793a\u77ed\u4fe1\u6a21\u5757\u5de5\u4f5c\u72b6\u6001&#xff08;\u521d\u59cb\u5316\u3001\u53d1\u9001\u4e2d\u3001\u53d1\u9001\u5b8c\u6210&#xff09;&#xff1b;<\/li>\n<li>\u7531\u5355\u7247\u673aGPIO\u63a7\u5236&#xff0c;\u5e26\u9650\u6d41\u7535\u963b\u4fdd\u8bc1\u5b89\u5168&#xff1b;<\/li>\n<li>\u624b\u7535\u7b52LED\u4f5c\u4e3a\u7167\u660e\u706f&#xff0c;\u7528\u6237\u901a\u8fc7\u6309\u952e\u63a7\u5236\u5f00\u5173&#xff0c;\u589e\u5f3a\u5b9e\u7528\u6027\u3002<\/li>\n<\/ul>\n<h3>2.7 \u7535\u6e90\u7ba1\u7406\u6a21\u5757<\/h3>\n<p>\u7535\u6e90\u90e8\u5206\u8bbe\u8ba1\u4e3a5V\/2A\u7a33\u538b\u4f9b\u7535&#xff0c;\u786e\u4fdd\u6240\u6709\u6a21\u5757\u6b63\u5e38\u7a33\u5b9a\u5de5\u4f5c\u3002<\/p>\n<ul>\n<li>\u4f7f\u7528\u9ad8\u6548\u7387DC-DC\u7a33\u538b\u6a21\u5757\u6216\u7ebf\u6027\u7a33\u538b\u82af\u7247&#xff1b;<\/li>\n<li>\u7535\u6e90\u8f93\u5165\u7aef\u914d\u7f6e\u6ee4\u6ce2\u7535\u5bb9\u548c\u8fc7\u6d41\u4fdd\u62a4\u7535\u8def&#xff1b;<\/li>\n<li>\u7535\u6e90\u8bbe\u8ba1\u8003\u8651\u6a21\u5757\u5cf0\u503c\u7535\u6d41&#xff0c;\u4fdd\u8bc1\u77ac\u95f4\u4f9b\u7535\u9700\u6c42\u3002<\/li>\n<\/ul>\n<h2>3. \u7a0b\u5e8f\u8bbe\u8ba1<\/h2>\n<p>\u7cfb\u7edf\u7a0b\u5e8f\u57fa\u4e8eSTM32\u5355\u7247\u673a&#xff0c;\u91c7\u7528C\u8bed\u8a00\u5f00\u53d1\u3002\u6574\u4f53\u7ed3\u6784\u6a21\u5757\u5316\u8bbe\u8ba1&#xff0c;\u4fbf\u4e8e\u540e\u671f\u7ef4\u62a4\u548c\u529f\u80fd\u62d3\u5c55\u3002\u4e3b\u8981\u5305\u542b\u7cfb\u7edf\u521d\u59cb\u5316\u3001GPS\u6570\u636e\u89e3\u6790\u3001GSM\u77ed\u4fe1\u63a7\u5236\u3001LCD\u663e\u793a\u7ba1\u7406\u3001\u6309\u952e\u5904\u7406\u3001LED\u6307\u793a\u53ca\u624b\u7535\u7b52\u63a7\u5236\u6a21\u5757\u3002<\/p>\n<h3>3.1 \u7cfb\u7edf\u521d\u59cb\u5316\u6a21\u5757<\/h3>\n<p>\u8d1f\u8d23\u521d\u59cb\u5316\u6240\u6709\u5916\u8bbe&#xff0c;\u5305\u62ec\u65f6\u949f\u914d\u7f6e\u3001UART\u53e3\u3001GPIO\u53e3\u3001ADC\u901a\u9053\u53ca\u5b9a\u65f6\u5668\u3002<\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">System_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">HAL_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">SystemClock_Config<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">UART_GPS_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>         <span class=\"token comment\">\/\/ \u521d\u59cb\u5316GPS\u4e32\u53e3<\/span><br \/>\n    <span class=\"token function\">UART_GSM_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>         <span class=\"token comment\">\/\/ \u521d\u59cb\u5316GSM\u4e32\u53e3<\/span><br \/>\n    <span class=\"token function\">GPIO_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>             <span class=\"token comment\">\/\/ \u521d\u59cb\u5316\u6309\u952e\u3001LED\u53ca\u624b\u7535\u7b52\u63a7\u5236\u53e3<\/span><br \/>\n    <span class=\"token function\">ADC_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>              <span class=\"token comment\">\/\/ \u521d\u59cb\u5316ADC&#xff0c;\u91c7\u96c6\u7535\u4f4d\u5668\u6570\u636e<\/span><br \/>\n    <span class=\"token function\">LCD1602_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>          <span class=\"token comment\">\/\/ \u521d\u59cb\u5316LCD1602<\/span><br \/>\n    <span class=\"token function\">LED_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>              <span class=\"token comment\">\/\/ \u521d\u59cb\u5316LED\u6307\u793a\u706f<\/span><br \/>\n    <span class=\"token function\">Timer_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>            <span class=\"token comment\">\/\/ \u521d\u59cb\u5316\u5b9a\u65f6\u5668&#xff0c;\u7528\u4e8e\u6309\u952e\u626b\u63cf\u53ca\u72b6\u6001\u66f4\u65b0<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>3.2 GPS\u6570\u636e\u91c7\u96c6\u4e0e\u89e3\u6790\u6a21\u5757<\/h3>\n<p>\u5b9e\u65f6\u8bfb\u53d6GPS\u4e32\u53e3\u6570\u636e&#xff0c;\u89e3\u6790\u51fa\u7ecf\u7eac\u5ea6\u3001\u65f6\u95f4\u548c\u65e5\u671f\u4fe1\u606f\u3002<\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">GPS_Data_Process<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">GPS_UART_Receive<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>gps_buffer<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">Parse_NMEA<\/span><span class=\"token punctuation\">(<\/span>gps_buffer<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>latitude<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>longitude<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>date<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>time<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            gps_fix_success <span class=\"token operator\">&#061;<\/span> true<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            gps_fix_success <span class=\"token operator\">&#061;<\/span> false<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>NMEA\u89e3\u6790\u51fd\u6570\u5c06\u63d0\u53d6GPRMC\u6216GPGGA\u62a5\u6587\u4e2d\u7684\u5b9a\u4f4d\u4e0e\u65f6\u95f4\u4fe1\u606f&#xff0c;\u8f6c\u6362\u4e3a\u53ef\u663e\u793a\u683c\u5f0f\u3002<\/p>\n<h3>3.3 GSM\u77ed\u4fe1\u63a7\u5236\u6a21\u5757<\/h3>\n<p>\u5b8c\u6210\u77ed\u4fe1\u7684\u53d1\u9001\u548c\u63a5\u6536&#xff0c;\u652f\u6301\u8fdc\u7a0b\u6307\u4ee4\u201cGET\u201d&#xff0c;\u81ea\u52a8\u56de\u590d\u5b9a\u4f4d\u53ca\u65f6\u95f4\u4fe1\u606f\u3002<\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">GSM_Send_Location_SMS<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> sms<span class=\"token punctuation\">[<\/span><span class=\"token number\">128<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">sprintf<\/span><span class=\"token punctuation\">(<\/span>sms<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u5f53\u524d\u4f4d\u7f6e&#xff1a;\u7eac\u5ea6%s&#xff0c;\u7ecf\u5ea6%s&#xff0c;\u65f6\u95f4%s %s&#034;<\/span><span class=\"token punctuation\">,<\/span> latitude<span class=\"token punctuation\">,<\/span> longitude<span class=\"token punctuation\">,<\/span> date<span class=\"token punctuation\">,<\/span> time<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">GSM_Send_AT_Command<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;AT&#043;CMGF&#061;1&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>                 <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u77ed\u4fe1\u6587\u672c\u6a21\u5f0f<\/span><br \/>\n    <span class=\"token function\">GSM_Send_AT_Command<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;AT&#043;CMGS&#061;\\\\&#034;&#043;1234567890\\\\&#034;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>   <span class=\"token comment\">\/\/ \u53d1\u9001\u5230\u6307\u5b9a\u53f7\u7801<\/span><br \/>\n    <span class=\"token function\">GSM_Send_String<\/span><span class=\"token punctuation\">(<\/span>sms<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">GSM_Send_Char<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0x1A<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>                              <span class=\"token comment\">\/\/ \u53d1\u9001\u7ed3\u675f\u7b26<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u77ed\u4fe1\u63a5\u6536\u90e8\u5206\u89e3\u6790\u6536\u5230\u7684\u77ed\u4fe1\u5185\u5bb9&#xff0c;\u82e5\u5185\u5bb9\u4e3a\u201cGET\u201d&#xff0c;\u5219\u8c03\u7528\u53d1\u9001\u51fd\u6570\u56de\u590d\u6570\u636e\u3002<\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">GSM_Receive_Process<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">GSM_Receive_AT_Response<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>recv_buffer<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">strstr<\/span><span class=\"token punctuation\">(<\/span>recv_buffer<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;GET&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">GSM_Send_Location_SMS<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>3.4 LCD1602\u663e\u793a\u6a21\u5757<\/h3>\n<p>\u5b9e\u73b0\u7ecf\u7eac\u5ea6\u548c\u65f6\u95f4\u65e5\u671f\u4e24\u79cd\u663e\u793a\u754c\u9762&#xff0c;\u7528\u6237\u901a\u8fc7\u6309\u952e\u5207\u6362\u3002<\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">LCD_Display_Update<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>display_mode <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">LCD_ShowString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u65f6\u95f4:&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">LCD_ShowString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> date<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">LCD_ShowString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">9<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> time<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>display_mode <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>gps_fix_success<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">LCD_ShowString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u7eac\u5ea6:&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token function\">LCD_ShowString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> latitude<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token function\">LCD_ShowString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">9<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u7ecf\u5ea6:&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token function\">LCD_ShowString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">14<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> longitude<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">LCD_ShowString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;GPS LINK&#8230;.&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token function\">LCD_Clear_Line<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>3.5 \u7535\u4f4d\u5668\u5bf9\u6bd4\u5ea6\u8c03\u8282\u6a21\u5757<\/h3>\n<p>\u901a\u8fc7ADC\u8bfb\u53d6\u7535\u4f4d\u5668\u7535\u538b&#xff0c;\u8c03\u6574LCD1602\u7684\u5bf9\u6bd4\u5ea6\u5bc4\u5b58\u5668\u503c&#xff0c;\u5b9e\u73b0\u52a8\u6001\u8c03\u8282\u3002<\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">Contrast_Adjust<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">uint16_t<\/span> adc_value <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">ADC_Read<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token class-name\">uint8_t<\/span> contrast_level <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">Map<\/span><span class=\"token punctuation\">(<\/span>adc_value<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">4095<\/span><span class=\"token punctuation\">,<\/span> MIN_CONTRAST<span class=\"token punctuation\">,<\/span> MAX_CONTRAST<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">LCD_Set_Contrast<\/span><span class=\"token punctuation\">(<\/span>contrast_level<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>3.6 \u6309\u952e\u5904\u7406\u6a21\u5757<\/h3>\n<p>\u54cd\u5e94\u4e09\u4e2a\u6309\u952e\u64cd\u4f5c&#xff1a;<\/p>\n<ul>\n<li>\u6309\u952e1&#xff1a;\u5207\u6362LCD\u663e\u793a\u6a21\u5f0f&#xff08;\u65f6\u95f4\/\u7ecf\u7eac\u5ea6&#xff09;<\/li>\n<li>\u6309\u952e2&#xff1a;\u63a7\u5236\u624b\u7535\u7b52LED\u5f00\u5173<\/li>\n<li>\u6309\u952e3&#xff1a;\u53d1\u9001\u77ed\u4fe1\u62a5\u544a\u5f53\u524d\u4f4d\u7f6e<\/li>\n<\/ul>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">Key_Scan<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">Key1_Pressed<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        display_mode <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span>display_mode <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">%<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">Key2_Pressed<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        flashlight_on <span class=\"token operator\">&#061;<\/span> <span class=\"token operator\">!<\/span>flashlight_on<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">GPIO_WritePin<\/span><span class=\"token punctuation\">(<\/span>FLASHLIGHT_PORT<span class=\"token punctuation\">,<\/span> FLASHLIGHT_PIN<span class=\"token punctuation\">,<\/span> flashlight_on <span class=\"token operator\">?<\/span> GPIO_PIN_SET <span class=\"token operator\">:<\/span> GPIO_PIN_RESET<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">Key3_Pressed<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">GSM_Send_Location_SMS<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>3.7 LED\u6307\u793a\u706f\u63a7\u5236\u6a21\u5757<\/h3>\n<p>\u6839\u636eGSM\u77ed\u4fe1\u6a21\u5757\u72b6\u6001&#xff0c;\u63a7\u5236LED\u6307\u793a\u706f\u7684\u5f00\u5173\u548c\u95ea\u70c1\u72b6\u6001\u3002<\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">LED_Status_Update<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>gsm_initialized<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">LED1_ON<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">LED1_OFF<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>sms_sending<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">LED2_BLINK<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">LED2_OFF<\/span><span class=\"token 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