![](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260909093351-6aa127ff8ada2.png\")
<\/p>\n\u5404\u4f4d\u770b\u5b98，\u4e14\u542c\u6211\u6162\u6162\u9053\u6765\u3002\u8bdd\u8bf4\u8fd9\u5e74\u5934，\u5bb6\u91cc\u53a8\u623f\u7684\u71c3\u6c14\u7076\u3001\u70ed\u6c34\u5668\u3001\u751a\u81f3\u90a3\u53f0\u603b\u7231"\u95f9\u813e\u6c14"\u7684\u8001\u5f0f\u7164\u6c14\u7f50，\u90fd\u85cf\u7740\u4e00\u4e2a\u770b\u4e0d\u89c1\u6478\u4e0d\u7740\u7684\u9690\u60a3\u2014\u2014\u53ef\u71c3\u6c14\u4f53\u6cc4\u6f0f\u3002\u4f60\u95fb\u4e0d\u5230\u3001\u770b\u4e0d\u89c1，\u7b49\u5b83\u6512\u591f\u4e86"\u813e\u6c14"，\u4e00\u4e2a\u706b\u661f\u5b50\u5c31\u80fd\u7ed9\u4f60\u4e0a\u6f14\u4e00\u51fa"\u53a8\u623f\u53d8\u706b\u7bad\u53d1\u5c04\u573a"\u7684\u60ca\u609a\u5927\u7247\u3002\u4e0d\u8fc7\u4eca\u5929\u54b1\u4eec\u8981\u5bf9\u4ed8\u7684，\u4e0d\u662f\u53a8\u623f\u91cc\u7684\u7164\u6c14，\u800c\u662f\u6253\u706b\u673a\u91cc\u90a3\u4f4d"\u5c0f\u4e2a\u5b50\u5927\u813e\u6c14"\u7684\u4e01\u70f7\u3002<\/p>\n
\u6240\u4ee5，\u4f5c\u4e3a\u4e00\u540d"\u4e07\u7269\u7686\u53ef\u5355\u7247\u673a"\u7684\u786c\u6838\u73a9\u5bb6，\u6211\u51b3\u5b9a\u7528\u4e00\u5757 STM32L4 \u5f00\u53d1\u677f\u3001\u4e00\u4e2a MQ-5 \u6c14\u4f53\u4f20\u611f\u5668，\u4eb2\u624b\u6253\u9020\u4e00\u53f0"\u6253\u706b\u673a\u6c14\u4f53\u5b88\u62a4\u795e"\u3002\u5b83\u4e0d\u7a7f\u62ab\u98ce，\u4e0d\u6234\u9762\u5177，\u4f46\u5b83\u80fd\u5728\u4e01\u70f7\u5077\u5077\u6e9c\u51fa\u6765\u7684\u65f6\u5019，\u7b2c\u4e00\u65f6\u95f4\u5728\u5c4f\u5e55\u4e0a\u5927\u558a："\u6709\u53ef\u71c3\u6c14\u4f53！"<\/p>\n
<\/p>\n
\u4eca\u5929\u8fd9\u7bc7\u535a\u5ba2，\u54b1\u4eec\u5c31\u4e00\u8d77\u62c6\u89e3\u8fd9\u4efd"\u6253\u706b\u673a\u6c14\u4f53\u68c0\u6d4b\u5b9e\u9a8c"\u4ee3\u7801，\u770b\u770b\u8fd9\u4f4d"\u5b88\u62a4\u795e"\u662f\u600e\u4e48\u70bc\u6210\u7684\u3002\u5168\u7a0b\u9ad8\u80fd，\u65e2\u6709\u786c\u6838\u6280\u672f，\u4e5f\u6709\u6c99\u96d5\u5410\u69fd，\u8fd8\u6709\u77e5\u8bc6\u70b9\u666e\u53ca\u548c\u907f\u5751\u6307\u5357，\u4fdd\u8bc1\u8ba9\u4f60\u7b11\u7740\u5b66\u4f1a\u3002<\/p>\n
\u00a0<\/p>\n
\u5148\u6765\u8ba4\u8bc6\u4e00\u4e0b\u4eca\u5929\u7684\u4e3b\u89d2\u2014\u2014MQ-5\u3002\u8fd9\u5bb6\u4f19\u957f\u5f97\u5176\u8c8c\u4e0d\u626c，\u4e00\u4e2a\u91d1\u5c5e\u5c0f\u5706\u5e3d，\u5e95\u4e0b\u516d\u6839\u5f15\u811a，\u6d3b\u50cf\u4e2a"\u957f\u4e86\u817f\u7684\u8611\u83c7"\u3002\u4f46\u4f60\u53ef\u522b\u5c0f\u770b\u5b83，\u5b83\u53ef\u662f\u6c14\u4f53\u68c0\u6d4b\u754c\u7684"\u8001\u6c5f\u6e56"\u3002.<\/p>\n
![](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260909093351-6aa127ffe8a5f.png\")
<\/p>\n
MQ-5 \u7684\u6838\u5fc3\u662f\u4e00\u4e2a\u4e8c\u6c27\u5316\u9521（SnO2）\u534a\u5bfc\u4f53\u6c14\u654f\u6750\u6599\u3002\u5728\u6d01\u51c0\u7a7a\u6c14\u4e2d，\u5b83\u7684\u7535\u963b\u9ad8\u9ad8\u5728\u4e0a，\u4e00\u526f"\u751f\u4eba\u52ff\u8fd1"\u7684\u50b2\u5a07\u6837；\u53ef\u4e00\u65e6\u63a5\u89e6\u5230\u53ef\u71c3\u6c14\u4f53（\u6bd4\u5982\u7532\u70f7\u3001\u4e19\u70f7\u3001\u6db2\u5316\u6c14），\u5b83\u7684\u7535\u963b\u5c31\u4f1a\u77ac\u95f4"\u53d8\u8138"，\u8e6d\u8e6d\u5f80\u4e0b\u6389\u3002\u4f20\u611f\u5668\u6a21\u5757\u4e0a\u7684\u6bd4\u8f83\u5668\u7535\u8def\u6355\u6349\u5230\u8fd9\u4e2a\u53d8\u5316，\u8f93\u51fa\u4e00\u4e2a\u9ad8\u4f4e\u7535\u5e73\u2014\u20140 \u8868\u793a"\u6709\u60c5\u51b5"，1 \u8868\u793a"\u4e00\u5207\u6b63\u5e38"\u3002<\/p>\n
\u7b80\u5355\u8bf4，\u8fd9\u5c31\u662f\u4e00\u573a"\u7535\u963b\u53d8\u8138"\u7684\u9b54\u672f，\u800c\u6211\u4eec\u7684 STM32 \u5c31\u662f\u90a3\u4e2a\u770b\u7a7f\u9b54\u672f\u7684"\u6bd2\u820c\u8bc4\u59d4"\u3002<\/p>\n
\u5c0f\u8d34\u58eb：MQ \u7cfb\u5217\u4f20\u611f\u5668\u4e0a\u7535\u540e\u9700\u8981\u9884\u70ed\u3002\u521a\u901a\u7535\u90a3\u4f1a\u513f，\u5b83\u7684\u8f93\u51fa\u4f1a"\u62bd\u98ce"\u4e00\u9635\u5b50，\u5c31\u50cf\u4eba\u521a\u7761\u9192\u8fd8\u6ca1\u6e05\u9192\u4e00\u6837\u3002\u6240\u4ee5\u4ee3\u7801\u91cc\u521d\u59cb\u5316\u540e\u522b\u6025\u7740\u4e0b\u7ed3\u8bba，\u7ed9\u5b83\u51e0\u5206\u949f"\u9192\u9192\u795e"\u2014\u2014\u51e0\u79d2\u53ea\u80fd\u505a\u5230\u521d\u6b65\u7a33\u5b9a，\u6c14\u654f\u6750\u6599\u5b8c\u5168\u7a33\u5b9a\u8981\u7b49\u6570\u5206\u949f\u3002<\/p>\n
\u597d\u4e86，\u95f2\u8bdd\u5c11\u53d9，\u54b1\u4eec\u76f4\u63a5\u4e0a\u4ee3\u7801\u3002\u8fd9\u4efd\u5b9e\u9a8c\u4ee3\u7801\u7ed3\u6784\u6e05\u6670，\u582a\u79f0"\u6559\u79d1\u4e66\u7ea7"\u7684 STM32 \u5916\u8bbe\u9a71\u52a8\u793a\u8303\u3002\u6211\u7ed9\u5b83\u8d77\u4e86\u4e2a\u5916\u53f7\u2014\u2014"\u521d\u59cb\u5316\u4e09\u4ef6\u5957 + \u7075\u9b42\u4e3b\u5faa\u73af"\u3002<\/p>\n
int main(void)
\n{
\n HAL_Init();
\n SystemClock_Config();
\n LCD_Display_Init(); \/\/\u5c4f\u5e55\u521d\u59cb\u5316\u663e\u793a
\n gpio_module_open(LEDS);
\n uart_open(uart2, 115200);
\n printf("\\\\r\\\\n \u53ef\u71c3\u6c14\u4f53\u68c0\u6d4b\u5b9e\u9a8c \\\\r\\\\n");
\n printf("——————————\\\\r\\\\n");
\n printf("\u5f00\u59cb\u672c\u5b9e\u9a8c：\\\\r\\\\n\\\\r\\\\n");
\n MQ5_Init(); \/\/\u521d\u59cb\u5316\u53ef\u71c3\u6c14\u4f53\u68c0\u6d4b\u5f15\u811a
\n printf("** \u6c14\u4f53\u4f20\u611f\u5668\u521d\u59cb\u5316\\\\r\\\\n");
\n printf("** \u8bfb\u53d6\u6c14\u4f53\u4f20\u611f\u5668\u6570\u636e\\\\r\\\\n");
\n while(1)
\n {
\n MQ5_Handle(); \/\/\u68c0\u6d4b\u53ef\u71c3\u6c14\u4f53\u6a21\u5757\u72b6\u6001\u5e76\u663e\u793a
\n }
\n}<\/p>\n
\u8fd9\u6bb5\u4ee3\u7801\u7684\u6d41\u7a0b，\u7528\u4e00\u53e5\u8bdd\u6982\u62ec\u5c31\u662f：\u5148\u628a\u81ea\u5df1\u6536\u62fe\u5229\u7d22，\u518d\u628a\u5916\u8bbe\u6328\u4e2a\u53eb\u9192，\u6700\u540e\u8fdb\u5165"\u65e0\u9650\u5faa\u73af\u6253\u5de5"\u6a21\u5f0f\u3002<\/p>\n
void MQ5_Handle(void)
\n{
\n uint8_t mq5_detect = 0;
\n static uint8_t mq2_detect_rev = 3;
\n static uint32_t tickstart;
\n if((HAL_GetTick() – tickstart) >= 1000)
\n {
\n tickstart = HAL_GetTick();
\n if(MQ5_Read_State() == 0)
\n {
\n LCD_draw_bmp(96,120,48,gImage_yanwu); \/\/\u6709\u53ef\u71c3\u6c14\u4f53\u56fe\u6807\u663e\u793a
\n LCD_Fill(85,178,140,194,WHITE); \/\/\u5237\u65b0\u663e\u793a
\n Show_Str(85,178,BLUE,WHITE,"\u6709\u53ef\u71c3\u6c14\u4f53",16,1); \/\/\u663e\u793a\u6709\u53ef\u71c3\u6c14\u4f53
\n }
\n else if(MQ5_Read_State() == 1)
\n {
\n LCD_draw_bmp(96,120,48,gImage_yanwu_hui); \/\/\u65e0\u53ef\u71c3\u6c14\u4f53\u56fe\u6807\u663e\u793a
\n LCD_Fill(85,178,140,194,WHITE); \/\/\u5237\u65b0\u663e\u793a
\n Show_Str(85,178,BLUE,WHITE,"\u65e0\u53ef\u71c3\u6c14\u4f53",16,1); \/\/\u663e\u793a\u65e0\u53ef\u71c3\u6c14\u4f53
\n }
\n mq5_detect = MQ5_Read_State();
\n if((!mq5_detect) != mq2_detect_rev)
\n {
\n if(!mq5_detect == 1)
\n {
\n printf("combustible gas detect:\u662f\\\\r\\\\n");
\n }
\n else
\n {
\n printf("combustible gas detect:\u5426\\\\r\\\\n");
\n mq2_detect_rev = !mq5_detect;
\n }
\n led_toggle(LED1_PORT);
\n }
\n }
\n}<\/p>\n
\u8fd9\u6bb5\u4ee3\u7801\u7684\u7cbe\u9ad3\u5728\u4e8e HAL_GetTick() \u8fd9\u4e2a"\u65f6\u95f4\u7ba1\u5bb6"\u3002\u5b83\u6bcf\u9694 1000 \u6beb\u79d2（1 \u79d2）\u624d\u6267\u884c\u4e00\u6b21\u68c0\u6d4b，\u65e2\u4fdd\u8bc1\u4e86\u5b9e\u65f6\u6027，\u53c8\u4e0d\u4f1a\u8ba9\u5355\u7247\u673a\u7d2f\u5f97"\u6c14\u5598\u5401\u5401"\u3002<\/p>\n
\u5f88\u591a\u521d\u5b66\u8005\u5199\u5ef6\u65f6，\u7b2c\u4e00\u53cd\u5e94\u5c31\u662f HAL_Delay(1000)\u3002\u4f46\u4f60\u77e5\u9053\u5417？HAL_Delay \u662f"\u963b\u585e\u5f0f"\u7684\u2014\u2014\u5b83\u4f1a\u8ba9\u5355\u7247\u673a\u50bb\u50bb\u5730\u7ad9\u5728\u539f\u5730\u6570\u6570，\u5565\u4e5f\u4e0d\u5e72\u3002\u8fd9\u5728\u7b80\u5355\u5b9e\u9a8c\u91cc\u6ca1\u95ee\u9898，\u53ef\u4e00\u65e6\u4f60\u7684\u7cfb\u7edf\u8981\u540c\u65f6\u5904\u7406\u591a\u4e2a\u4efb\u52a1（\u6bd4\u5982\u4e00\u8fb9\u68c0\u6d4b\u6c14\u4f53，\u4e00\u8fb9\u5237\u5c4f\u5e55，\u4e00\u8fb9\u56de\u4e32\u53e3），\u963b\u585e\u5ef6\u65f6\u5c31\u4f1a\u8ba9\u7cfb\u7edf"\u5361\u58f3"\u3002<\/p>\n
\u800c HAL_GetTick() \u5c31\u4e0d\u4e00\u6837\u4e86\u3002\u5b83\u8fd4\u56de\u7684\u662f\u7cfb\u7edf\u4e0a\u7535\u4ee5\u6765\u7ecf\u8fc7\u7684\u6beb\u79d2\u6570，\u662f\u4e00\u4e2a"\u53ea\u8bfb\u65f6\u949f"\u3002\u6211\u4eec\u7528"\u5f53\u524d\u65f6\u95f4 – \u4e0a\u6b21\u8bb0\u5f55\u65f6\u95f4 >= 1000"\u6765\u5224\u65ad\u662f\u5426\u8fc7\u4e86 1 \u79d2，\u8fd9\u5c31\u662f\u7ecf\u5178\u7684\u975e\u963b\u585e\u5ef6\u65f6\u3002\u5355\u7247\u673a\u5728\u8fd9 1 \u79d2\u91cc\u8be5\u5e72\u561b\u5e72\u561b，\u65f6\u95f4\u5230\u4e86\u81ea\u7136"\u56de\u5934\u770b\u4e00\u773c"，\u582a\u79f0"\u65f6\u95f4\u7ba1\u7406\u5927\u5e08"\u3002\u987a\u5e26\u4e00\u63d0，HAL_GetTick \u57fa\u4e8e SysTick，\u6700\u5927\u8ba1\u6570\u5230\u7ea6 49 \u5929\u4f1a\u6ea2\u51fa，\u77ed\u5b9e\u9a8c\u65e0\u6240\u8c13，\u5927\u578b\u4ea7\u54c1\u8bbe\u8ba1\u65f6\u8981\u8003\u8651\u6ea2\u51fa\u5904\u7406\u3002<\/p>\n
\u77e5\u8bc6\u70b9：\u8fd9\u79cd"\u8f6e\u8be2 + \u65f6\u95f4\u6233"\u7684\u6a21\u5f0f，\u662f\u5d4c\u5165\u5f0f\u5f00\u53d1\u4e2d\u975e\u5e38\u57fa\u7840\u4e5f\u975e\u5e38\u91cd\u8981\u7684\u601d\u60f3\u3002\u5b66\u4f1a\u4e86\u5b83，\u4f60\u5c31\u4ece"\u53ea\u4f1a\u6b7b\u7b49"\u7684\u840c\u65b0，\u8fdb\u5316\u6210\u4e86"\u4f1a\u5077\u65f6\u95f4"\u7684\u8001\u9e1f\u3002<\/p>\n
\u505a\u5b9e\u9a8c\u561b，\u54ea\u6709\u4e0d\u8e29\u5751\u7684？\u4e0b\u9762\u8fd9\u51e0\u6761，\u90fd\u662f\u6211（\u548c\u65e0\u6570\u7f51\u53cb）\u7528"\u8840\u4e0e\u6cea"\u6362\u6765\u7684\u7ecf\u9a8c，\u8bf7\u52a1\u5fc5\u6536\u597d\u3002<\/p>\n
MQ-5 \u4e0a\u7535\u540e\u9700\u8981\u9884\u70ed 2-5 \u5206\u949f，\u5185\u90e8\u52a0\u70ed\u4e1d\u624d\u80fd\u8ba9\u4e8c\u6c27\u5316\u9521\u6c14\u654f\u6750\u6599\u8fbe\u5230\u7a33\u5b9a\u5de5\u4f5c\u6e29\u5ea6\u3002\u4ec5\u4ec5\u7b49\u5f85\u51e0\u79d2\u53ea\u80fd\u8fbe\u5230\u7c97\u7565\u72b6\u6001，\u5982\u679c\u4e00\u4e0a\u7535\u5c31\u6025\u7740\u8bfb\u6570\u636e，\u4f1a\u53d1\u73b0\u8f93\u51fa\u503c\u5ffd\u9ad8\u5ffd\u4f4e，\u50cf\u4e2a"\u9189\u6c49"\u5728\u8df3\u821e\u3002\u89e3\u51b3\u529e\u6cd5：\u521d\u59cb\u5316\u540e\u52a0\u4e2a\u9884\u70ed\u7b49\u5f85，\u6216\u8005\u5e72\u8106\u5148\u8dd1\u4e2a"\u9884\u70ed\u5012\u8ba1\u65f6"\u518d\u5f00\u59cb\u68c0\u6d4b\u3002<\/p>\n
\u4ed4\u7ec6\u770b MQ5_Handle() \u91cc\u7684\u8fd9\u6bb5：<\/p>\n
if((!mq5_detect) != mq2_detect_rev)
\n{
\n if(!mq5_detect == 1)
\n {
\n printf("combustible gas detect:\u662f\\\\r\\\\n");
\n }
\n else
\n {
\n printf("combustible gas detect:\u5426\\\\r\\\\n");
\n mq2_detect_rev = !mq5_detect;
\n }
\n led_toggle(LED1_PORT);
\n}<\/p>\n
\u53d1\u73b0\u95ee\u9898\u4e86\u5417？mq2_detect_rev \u8fd9\u4e2a"\u72b6\u6001\u8bb0\u5fc6\u53d8\u91cf"\u53ea\u5728 else \u5206\u652f\u91cc\u88ab\u66f4\u65b0，\u800c if \u5206\u652f（\u68c0\u6d4b\u5230\u6c14\u4f53）\u91cc\u6ca1\u6709\u66f4\u65b0\u3002\u8fd9\u610f\u5473\u7740：\u5f53\u6c14\u4f53\u4ece"\u65e0"\u53d8"\u6709"\u65f6，\u72b6\u6001\u786e\u5b9e\u4f1a\u6253\u5370\u4e00\u6b21；\u4f46\u4ece"\u6709"\u53d8"\u65e0"\u65f6，mq2_detect_rev \u8fd8\u662f\u65e7\u503c，\u53ef\u80fd\u4e0d\u4f1a\u89e6\u53d1\u6253\u5370\u3002\u800c\u4e14\u53d8\u91cf\u540d\u8fd8\u53eb mq2_detect_rev，\u660e\u660e\u7528\u7684\u662f MQ-5，\u8fd9\u547d\u540d\u5f3a\u8feb\u75c7\u770b\u4e86\u5f97\u5f53\u573a\u53bb\u4e16\u3002<\/p>\n
\u6b63\u786e\u5199\u6cd5：\u628a mq2_detect_rev = !mq5_detect; \u63d0\u5230 if \u5916\u9762，\u65e0\u8bba\u54ea\u4e2a\u5206\u652f\u90fd\u66f4\u65b0\u72b6\u6001\u3002\u81f3\u4e8e\u53d8\u91cf\u540d，\u5efa\u8bae\u6539\u6210 mq5_detect_rev，\u522b\u8ba9\u540e\u4eba"\u8003\u53e4"\u3002<\/p>\n
MQ-5 \u6a21\u5757\u901a\u5e38\u6709\u4e24\u4e2a\u8f93\u51fa：DO（\u6570\u5b57\u91cf）\u548c AO（\u6a21\u62df\u91cf）\u3002\u672c\u5b9e\u9a8c\u7528\u7684\u662f DO，\u53ea\u80fd\u544a\u8bc9\u4f60"\u6709\/\u6ca1\u6709"，\u662f\u4e2a"\u76f4\u7537"；AO \u8f93\u51fa\u7684\u662f\u7535\u538b\u503c，\u80fd\u544a\u8bc9\u4f60"\u6d53\u5ea6\u5927\u6982\u591a\u5c11"，\u662f\u4e2a"\u6696\u7537"\u3002\u6ce8\u610f，DO \u7684\u62a5\u8b66\u9608\u503c\u7531\u677f\u8f7d LM393 \u6bd4\u8f83\u5668\u914d\u5957\u7684\u7535\u4f4d\u5668\u51b3\u5b9a，\u65cb\u8f6c\u7535\u4f4d\u5668\u5c31\u80fd\u8c03\u8282\u7075\u654f\u5ea6\u2014\u2014\u8c03\u592a\u7075\u654f，\u8f7b\u5fae\u9152\u7cbe\u5c31\u8bef\u62a5；\u8c03\u592a\u8fdf\u949d，\u771f\u6cc4\u6f0f\u4e86\u4e5f\u4e0d\u62a5\u8b66\u3002\u5982\u679c\u4f60\u8981\u505a\u6d53\u5ea6\u76d1\u6d4b（\u6bd4\u5982\u663e\u793a PPM \u503c），\u5fc5\u987b\u7528 ADC \u8bfb AO，\u8fd8\u5f97\u505a\u6d53\u5ea6\u6807\u5b9a\u3002\u522b\u62ff DO \u5f53 AO \u7528，\u90a3\u5c31\u50cf\u62ff\u4f53\u6e29\u8ba1\u6d4b\u8840\u538b\u2014\u2014\u4e0d\u662f\u4e0d\u884c，\u662f\u6839\u672c\u4e0d\u5bf9\u8def\u3002<\/p>\n
MQ-5 \u7684\u52a0\u70ed\u4e1d\u662f\u4e2a"\u7535\u8001\u864e"，\u6a21\u5757\u6574\u4f53\u5de5\u4f5c\u7535\u6d41\u5927\u7ea6 80-120mA\u3002\u5982\u679c\u4f60\u7528\u5f00\u53d1\u677f\u7684 3.3V \u5f15\u811a\u76f4\u63a5\u7ed9\u5b83\u4f9b\u7535，\u5f88\u53ef\u80fd"\u5582\u4e0d\u9971"，\u5bfc\u81f4\u8bfb\u6570\u6f02\u79fb\u751a\u81f3\u4e0d\u5de5\u4f5c\u3002\u5efa\u8bae\u7528 5V \u4f9b\u7535，\u5e76\u4e14\u5355\u72ec\u7ed9\u4f20\u611f\u5668\u6a21\u5757\u4f9b\u7535，\u522b\u548c\u5355\u7247\u673a\u62a2"\u53e3\u7cae"\u3002<\/p>\n
\u6d4b\u8bd5\u65f6\u7528\u6253\u706b\u673a\u6c14\u4f53（\u4e01\u70f7）\u5bf9\u7740\u4f20\u611f\u5668\u55b7\u4e00\u4e0b\u5c31\u884c，\u5343\u4e07\u522b\u7528\u660e\u706b\u53bb"\u70e4"\u5b83\u3002\u6253\u706b\u673a\u91cc\u662f\u9ad8\u538b\u6db2\u6001\u4e01\u70f7，\u91ca\u653e\u51fa\u6765\u4f1a\u8fc5\u901f\u6c7d\u5316，\u6240\u4ee5\u4e0d\u8981\u8fde\u7eed\u5927\u91cf\u91ca\u653e，\u4e0d\u8981\u5728\u5bc6\u95ed\u5c0f\u7a7a\u95f4\u505a\u5b9e\u9a8c，\u8fdc\u79bb\u4e00\u5207\u706b\u79cd\u3002\u6bd5\u7adf\u54b1\u4eec\u662f\u641e\u5b9e\u9a8c，\u4e0d\u662f\u641e"\u7206\u7834"\u3002\u5b89\u5168\u7b2c\u4e00，\u5e7d\u9ed8\u7b2c\u4e8c\u3002<\/p>\n
\u26a0\ufe0f \u91cd\u8981\u8bf4\u660e：\u672c\u9879\u76ee\u4ec5\u4e3a STM32 \u7269\u8054\u7f51\u8bfe\u7a0b\u6f14\u793a\u5b9e\u9a8c\u3002MQ-5 \u5c5e\u4e8e\u91d1\u5c5e\u6c27\u5316\u7269（MOS）\u6c14\u654f\u4f20\u611f\u5668，\u5b58\u5728\u6c14\u4f53\u4ea4\u53c9\u5e72\u6270（\u9152\u7cbe\u3001\u9999\u6c34\u7b49\u4f1a\u8bef\u89e6\u53d1），\u4e14\u672c\u5b9e\u9a8c\u88c5\u7f6e\u65e0\u6d88\u9632\u8ba4\u8bc1，\u4e0d\u53ef\u66ff\u4ee3\u6b63\u89c4\u5bb6\u7528\u62a5\u8b66\u5668，\u4e0d\u80fd\u7528\u4e8e\u5bb6\u5ead\u71c3\u6c14\u5b89\u5168\u9632\u62a4\u3002<\/p>\n
\u597d\u4e86，\u8fd9\u573a\u5173\u4e8e MQ-5 \u6c14\u4f53\u4f20\u611f\u5668\u7684\u5192\u9669\u5c31\u5230\u8fd9\u91cc\u3002\u6211\u4eec\u4ece\u4e00\u4e2a"\u770b\u4e0d\u89c1\u7684\u654c\u4eba"\u8bf4\u8d77，\u8ba4\u8bc6\u4e86 MQ-5 \u8fd9\u4f4d"\u7535\u963b\u53d8\u8138"\u7684\u9b54\u672f\u5e08，\u62c6\u89e3\u4e86 STM32 \u7684\u521d\u59cb\u5316\u6d41\u7a0b\u548c\u7075\u9b42\u4e3b\u5faa\u73af，\u8fd8\u5b66\u4f1a\u4e86\u975e\u963b\u585e\u5ef6\u65f6\u7684\u827a\u672f，\u6700\u540e\u6536\u83b7\u4e86\u4e00\u7ba9\u7b50\u907f\u5751\u7ecf\u9a8c\u3002<\/p>\n
\u8bf4\u5b9e\u8bdd，\u8fd9\u4e2a\u5b9e\u9a8c\u7684\u4ee3\u7801\u5e76\u4e0d\u590d\u6742，\u4f46\u5b83\u80cc\u540e\u8574\u542b\u7684\u601d\u60f3\u2014\u2014\u521d\u59cb\u5316\u5916\u8bbe\u3001\u8f6e\u8be2\u72b6\u6001\u3001\u975e\u963b\u585e\u5ef6\u65f6\u3001\u72b6\u6001\u53d8\u5316\u68c0\u6d4b\u2014\u2014\u662f\u5d4c\u5165\u5f0f\u5f00\u53d1\u7684"\u57fa\u672c\u529f"\u3002\u628a\u8fd9\u5957\u529f\u592b\u7ec3\u624e\u5b9e\u4e86，\u4ee5\u540e\u65e0\u8bba\u662f\u505a\u6e29\u6e7f\u5ea6\u8ba1\u3001\u70df\u96fe\u62a5\u8b66\u5668，\u8fd8\u662f\u667a\u80fd\u5bb6\u5c45\u7f51\u5173，\u4f60\u90fd\u80fd\u4e3e\u4e00\u53cd\u4e09，\u6e38\u5203\u6709\u4f59\u3002<\/p>\n
\u6700\u540e\u9001\u5927\u5bb6\u4e00\u53e5\u8bdd：\u4ee3\u7801\u53ef\u4ee5\u6c99\u96d5，\u4f46\u6001\u5ea6\u5fc5\u987b\u786c\u6838\u3002\u613f\u4f60\u7684\u6bcf\u4e00\u6b21\u5b9e\u9a8c，\u90fd\u80fd\u50cf MQ-5 \u68c0\u6d4b\u5230\u6253\u706b\u673a\u6c14\u4f53\u4e00\u6837\u2014\u2014\u53cd\u5e94\u7075\u654f，\u4ece\u4e0d\u8bef\u62a5\u3002\u54b1\u4eec\u4e0b\u671f\u518d\u89c1！<\/p>\n
\u00a0<\/p>\n
\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"
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