{"id":889,"date":"2025-07-17T15:29:02","date_gmt":"2025-07-17T07:29:02","guid":{"rendered":"https:\/\/aimc.skyate.com\/?p=889"},"modified":"2025-07-17T15:29:02","modified_gmt":"2025-07-17T07:29:02","slug":"%e3%80%90%e8%bd%ac%e8%bd%bd%e3%80%91ltc2944%e5%ba%93%e4%bb%91%e8%ae%a1%ef%bc%88%e7%94%b5%e9%87%8f%e8%ae%a1%ef%bc%89%e8%8a%af%e7%89%87%e5%ba%94%e7%94%a8%e7%ac%94%e8%ae%b0%ef%bc%88arduino%ef%bc%8cesp32","status":"publish","type":"post","link":"https:\/\/aimc.skyate.com\/index.php\/2025\/07\/17\/%e3%80%90%e8%bd%ac%e8%bd%bd%e3%80%91ltc2944%e5%ba%93%e4%bb%91%e8%ae%a1%ef%bc%88%e7%94%b5%e9%87%8f%e8%ae%a1%ef%bc%89%e8%8a%af%e7%89%87%e5%ba%94%e7%94%a8%e7%ac%94%e8%ae%b0%ef%bc%88arduino%ef%bc%8cesp32\/","title":{"rendered":"\u3010\u8f6c\u8f7d\u3011LTC2944\u5e93\u4ed1\u8ba1\uff08\u7535\u91cf\u8ba1\uff09\u82af\u7247\u5e94\u7528\u7b14\u8bb0\uff08Arduino\uff0cESP32\uff09"},"content":{"rendered":"\n

\u4e00\u3001\u4e00\u4e9b\u57fa\u7840\u77e5\u8bc6<\/h2>\n\n\n\n

1.\u84c4\u7535\u6c60\u7684\u5bb9\u91cf\u5355\u4f4d<\/h3>\n\n\n\n

\uff081\uff09\u6beb\u5b89\u65f6mAH<\/h5>\n\n\n\n

\u84c4\u7535\u6c60\u7684\u5bb9\u91cf\u4e00\u822c\u4f1a\u91c7\u7528 \u6beb\u5b89\u65f6 \uff08mAH\uff09\u4e3a\u5355\u4f4d\uff0c\u6bd4\u59822000mAH\u7684\u84c4\u7535\u6c60\u610f\u601d\u662f\u8be5\u84c4\u7535\u6c60\u7406\u8bba\u4e0a\u53ef\u4ee5\u4ee52000mA\u7684\u7535\u6d41\u6301\u7eed\u653e\u75351\u5c0f\u65f6\uff0c2000mA*1H=2000mAH\u3002\u5f53\u7136\u8fd9\u4e2a\u662f\u7406\u8bba\u4e0a\u7684\uff0c\u5b9e\u9645\u4e0a\u84c4\u7535\u6c60\u5bb9\u91cf\u53d7\u5230\u81ea\u8eab\u5bff\u547d\u72b6\u6001\u3001\u5916\u90e8\u6e29\u5ea6\u7b49\u73af\u5883\u56e0\u7d20\u5f71\u54cd\uff0c\u6807\u79f02000mAH\u7684\u7535\u6c60\u5f80\u5f80\u4e0d\u80fd\u653e\u51fa\u90a3\u4e48\u591a\u5bb9\u91cf\u7684\u3002\u4e25\u683c\u8bf4\u6765\uff0cmAH\u5e76\u4e0d\u662f\u7535\u80fd\u91cf\u5355\u4f4d\uff0c\u53ea\u662f\u4e2a\u5bb9\u91cf\u5355\u4f4d\u3002<\/p>\n\n\n\n

\uff082\uff09\u74e6\u65f6WH<\/h5>\n\n\n\n

\u6211\u4eec\u77e5\u9053\uff0c\u7535\u80fd\u91cf\u6709\u4e2a\u5355\u4f4d\u53eb\u505a \u74e6\u65f6 \uff08WH\uff09\u6216\u5343\u74e6\u65f6\uff08\u5ea6\uff09\uff08kWH\uff09\u3002\u4e3a\u4ec0\u4e48\u4e0d\u7528\u74e6\u65f6\u6765\u8868\u793a\u84c4\u7535\u6c60\u5bb9\u91cf\u5462\uff1f\u5176\u5b9e\u4e5f\u4e0d\u662f\u4e0d\u7528\uff0c\u800c\u53ea\u662f\u4e60\u60ef\u95ee\u9898\uff0c\u6bd4\u5982\u73b0\u5728\u7535\u52a8\u6c7d\u8f66\u5c31\u7528\u5ea6\u6765\u8868\u793a\u84c4\u7535\u6c60\u5bb9\u91cf\u4e86\u3002<\/p>\n\n\n\n

\u5728\u5c0f\u578b\u84c4\u7535\u6c60\u9886\u57df\uff0c\u6bd4\u598218650\u7535\u6c60\uff0c\u7528\u5ea6\u6765\u505a\u5355\u4f4d\u6709\u70b9\u592a\u5927\u4e86\u3002\u5047\u8bbe\u7535\u6c60\u7535\u538b4V\uff0c\u653e\u7535\u7535\u6d411000mA\uff081A\uff09\uff0c\u653e\u4e00\u4e2a\u5c0f\u65f6\u653e\u51fa\u7684\u80fd\u91cf\u624d4V*1A*1H=4WH\u3002<\/p>\n\n\n\n

\u6b64\u5916\uff0c\u84c4\u7535\u6c60\u653e\u7535\u8fc7\u7a0b\u4e2d\uff0c\u7535\u538b\u4e0d\u662f\u6052\u5b9a\u4e0d\u53d8\u7684\uff0c\u800c\u662f\u4e00\u76f4\u5728\u53d8\u5316\u7684\uff0c\u90a3\u4e48\u5c31\u9700\u8981\u7528\u6301\u7eed\u79ef\u5206\u7684\u65b9\u5f0f\u6765\u8ba1\u7b97\u84c4\u7535\u6c60\u5b9e\u9645\u653e\u51fa\u80fd\u91cf\u4e86\uff0c\u64cd\u4f5c\u8d77\u6765\u6bd4\u8f83\u9ebb\u70e6\u3002\u800c\u653e\u7535\u8fc7\u7a0b\u4e2d\uff0c\u653e\u7535\u7535\u6d41\u662f\u53ef\u4ee5\u901a\u8fc7\u653e\u7535\u8d1f\u8f7d\u8c03\u8282\u6765\u505a\u5230\u6052\u6d41\u653e\u7535\u7684\u3002\u6240\u4ee5mAH\u542c\u8d77\u6765\u662f\u6bd4\u8f83\u76f4\u89c2\u7684\u3002<\/p>\n\n\n\n

\u7efc\u5408\u4ee5\u4e0a\u79cd\u79cd\u56e0\u7d20\uff0c\u5c0f\u578b\u7535\u6c60\u9886\u57df\uff0c\u6211\u4eec\u901a\u5e38\u7528mAH\u6765\u505a\u5bb9\u91cf\u5355\u4f4d\u3002<\/p>\n\n\n\n

\uff083\uff09\u5e93\u4f26<\/h5>\n\n\n\n

\u6b64\u5916\u8fd8\u6709\u4e2a\u5355\u4f4d \u5e93\u4f26 C\uff0c\u8fd9\u4e2a\u5355\u4f4d\u662f\u7535\u8377\u5355\u4f4d\uff0c\u5b9a\u4e49\u662f1\u5b89\u57f9\u7535\u6d41\u6301\u7eed1\u79d2\u6240\u6d41\u8fc7\u7684\u7535\u8377\u91cf\u4e3a1\u5e93\u4f26\uff0c\u53731C=1A*1s\u3002\u5176\u548cmAH\u4e4b\u95f4\u7684\u5173\u7cfb\u5c31\u662f1mAH=0.001A*3600s=3.6C<\/p>\n\n\n\n

\u4e8c\u3001LTC2944\u5e94\u7528\u77e5\u8bc6\u70b9<\/h2>\n\n\n\n

1.LTC2944\u7b80\u5355\u4ecb\u7ecd<\/h3>\n\n\n\n

\u8fd9\u4e2a\u5728\u7f51\u4e0a\u80fd\u641c\u7d22\u5230\u4e00\u4e9b\uff0c\u7d2f\u8d58\u518d\u7b80\u5355\u4ecb\u7ecd\uff0c\u8be6\u7ec6\u4ecb\u7ecd\u53ef\u4ee5\u81ea\u884c\u7f51\u4e0a\u67e5\u627e\u3002<\/p>\n\n\n\n

\u2022 \u53ef\u6d4b\u91cf\u7d2f\u79ef\u7684\u7535\u6c60\u5145\u7535\u548c\u653e\u7535\u7535\u91cf
\u2022 3.6V \u81f3 60V \u5de5\u4f5c\u8303\u56f4\u53ef\u9002\u5408\u591a\u8282\u7535\u6c60
\u2022 14 \u4f4d ADC \u8d1f\u8d23\u6d4b\u91cf\u7535\u6c60\u7535\u538b\u3001\u7535\u6d41\u548c\u6e29\u5ea6
\u2022 1% \u7535\u538b\u3001\u7535\u6d41\u548c\u5145\u7535\u51c6\u786e\u5ea6
\u2022 \u00b150mV \u68c0\u6d4b\u7535\u538b\u8303\u56f4
\u2022 \u9ad8\u538b\u4fa7\u68c0\u6d4b
\u2022 I2C \u63a5\u53e3 \/ SMBus\u63a5\u53e3
\u2022 \u9002\u5408\u4efb\u4f55\u7535\u6c60\u5316\u5b66\u7ec4\u6210\u548c\u5bb9\u91cf\u7684\u901a\u7528\u6d4b\u91cf
\u2022 \u53ef\u914d\u7f6e\u8b66\u62a5\u8f93\u51fa \/ \u5145\u7535\u5b8c\u6210\u8f93\u5165
\u2022 \u9759\u6001\u7535\u6d41\u5c0f\u4e8e 150\u03bcA
\u2022 \u5c0f\u5916\u5f62 8 \u5f15\u7ebf 3mm x 3mm DFN \u5c01\u88c5<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u987a\u4fbf\u63d0\u4e00\u53e5\uff0c\u8fd9\u4e2a\u82af\u7247\u6bd4\u8f83\u8d35\uff0c\u56fd\u4ea7\u6709\u77fd\u529b\u6770\u7684SA59202\u505aPin-to-Pin\u7684\u4ee3\u66ff\uff0c\u4f46\u662f\u5f88\u4e0d\u597d\u4e70\uff0c\u7f3a\u8d27\uff0c\u4e5f\u4e0d\u77e5\u9053\u6027\u80fd\u5dee\u522b\u6709\u591a\u5927\u3002<\/p>\n\n\n\n

2.\u82af\u7247\u7ed3\u6784<\/h3>\n\n\n\n
\"\"<\/figure>\n\n\n\n

LTC2944\u5185\u90e8\u5305\u542b3\u4e2a\u4e3b\u8981\u90e8\u5206\uff1a \u7535\u91cf\u8ba1\u6570\u5668\u3001ADC\u3001I2C\u901a\u4fe1\u6a21\u5757 \u3002<\/strong><\/p>\n\n\n\n

\uff081\uff09\u7535\u91cf\u8ba1\u6570\u5668\uff1a <\/strong>\u6bd4\u8f83\u7279\u522b\uff0c\u5b83\u662f\u72ec\u7acb\u4e8e\u7535\u538b\u3001\u7535\u6d41\u3001\u6e29\u5ea6\u4f20\u611f\u5668\u7684\uff0c\u5176\u5de5\u4f5c\u4e5f\u662f\u72ec\u7acb\u7684\u3002<\/p>\n\n\n\n

\u56e0\u6b64\uff0c\u53ef\u4ee5\u901a\u8fc7\u63a7\u5236\u5bc4\u5b58\u5668\uff0c\u8ba9ADC\u505c\u6b62\u5de5\u4f5c\uff08sleep\uff09\uff0c\u800c\u7535\u91cf\u8ba1\u6570\u5668\u5728ADC\u505c\u6b62\u540e\u662f\u4e0d\u4f1a\u53d7\u5230\u5f71\u54cd\u7684\uff0c\u4f9d\u7136\u4f1a\u7ee7\u7eed\u8ba1\u6570\u3002\u4e5f\u5c31\u662f\u8bf4\u53ea\u8981\u82af\u7247\u901a\u7535\u6ca1\u6709shutdown\uff08\u8be5\u6a21\u5f0f\u540e\u9762\u4f1a\u8bb2\u5230\uff09\uff0c\u7535\u91cf\u8ba1\u6570\u5668\u5c31\u4f1a\u4e00\u76f4\u8fd0\u884c\u3002<\/p>\n\n\n\n

\uff082\uff09ADC\uff1a <\/strong>ADC\u53ef\u4ee5\u5bf9\u7535\u538b\u3001\u7535\u6d41\u3001\u6e29\u5ea6\u4e09\u4e2a\u91cf\u8fdb\u884c\u91c7\u96c6\uff0c\u901a\u8fc7ADC\u524d\u7aefMUX\u5207\u6362\u8f93\u5165\u6e90\u3002<\/p>\n\n\n\n

\uff083\uff09I2C\u901a\u4fe1\u6a21\u5757\uff1a <\/strong>\u63d0\u4f9b\u901a\u4fe1\u529f\u80fd\uff0c\u5bf9\u5bc4\u5b58\u5668\u8bfb\u5199\u8fdb\u800c\u63a7\u5236\u82af\u7247\u3002<\/p>\n\n\n\n

3.\u5185\u90e8\u5bc4\u5b58\u5668\u8868<\/h3>\n\n\n\n
\"\"<\/figure>\n\n\n\n

00h\uff1a\u72b6\u6001\u5bc4\u5b58\u5668\uff0c\u5f53\u53d1\u751f\u544a\u8b66\u65f6\u8be5\u5bc4\u5b58\u5668\u76f8\u5e94\u4f4d\u7f6e\u4f4d\uff1b<\/p>\n\n\n\n

01h\uff1a\u63a7\u5236\u5bc4\u5b58\u5668\uff0c\u63a7\u5236\u82af\u7247\u7684\u5de5\u4f5c\u6a21\u5f0f\u3001\u9884\u5b9a\u6807\u503c\u3001ALCC\u5f15\u811a\u529f\u80fd\u63a7\u5236\uff1b<\/p>\n\n\n\n

02h-17h\uff1a\u7535\u91cf\u3001\u7535\u538b\u3001\u7535\u6d41\u3001\u6e29\u5ea6\u7684\u6d4b\u91cf\u503c\u548c\u7d2f\u79ef\u503c\uff0c\u4ee5\u53ca\u544a\u8b66\u95e8\u9650\u8bbe\u7f6e\u3002<\/p>\n\n\n\n

3.Rsense\u5927\u5c0f\u7684\u9009\u62e9<\/h3>\n\n\n\n

\u8be5\u82af\u7247\u7684SENSE+\u548cSENSE-\u5f15\u811a\u4e4b\u95f4\u7684\u6700\u5927\u7535\u538b\u9650\u5236\u5728\u00b150mV\u5185\uff0c\u56e0\u6b64\u4f60\u7684\u5e94\u7528\u573a\u666f\u4e0b\u84c4\u7535\u6c60\u7684\u5145\u7535\u548c\u653e\u7535\u6700\u5927\u7535\u6d41\u4e0b\uff0c\u5728Rsense\u4e0a\u4ea7\u751f\u7684\u538b\u964d\u4e0d\u8981\u8d85\u8fc7\u8fd9\u4e2a50mV\uff0c\u5426\u5219\u82af\u7247\u7cbe\u5ea6\u53d7\u5f71\u54cd\uff0c\u8d85\u8fc7300mV\u751a\u81f3\u4f1a\u505c\u6b62\u5de5\u4f5c\uff08\u4e0d\u77e5\u9053\u4f1a\u4e0d\u4f1a\u574f\u6389\uff0c\u624b\u518c\u6ca1\u8bf4\uff09\u3002<\/p>\n\n\n\n

\u6bd4\u59822A\u7684\u6700\u5927\u5145\u7535\u6216\u653e\u7535\u7535\u6d41\uff0c\u5e94\u8be5Rsense\u2264(50mV\/2A)=25m\u03a9\u3002<\/p>\n\n\n\n

4.\u5bc4\u5b58\u5668\u503c\u4e0e\u5b9e\u9645\u503c\u4e4b\u95f4\u7684\u8ba1\u7b97\u65b9\u6cd5<\/h3>\n\n\n\n

\uff081\uff09\u7535\u538bV<\/h5>\n\n\n\n

\u7535\u538bADC\u6709\u6548\u4f4d\u4e3a16bit\uff0c\u5bc4\u5b58\u5668\u5730\u5740\u4e3a08h\u548c09h\uff0c\u6ee1\u91cf\u7a0b70.8V\uff0c\u56e0\u6b64Vlsb=70.8\/65535\u3002<\/p>\n\n\n\n

\u5982\u679c\u5bc4\u5b58\u5668\u8bfb\u51fa\u503c\u4e3aB01Ch\uff08\u5341\u8fdb\u523645084\uff09\uff0c\u90a3\u4e48\u6d4b\u91cf\u503c\u5b9e\u9645\u4e3a\uff1a<\/p>\n\n\n\n

V=45084*70.8\/65535\u224848.705V<\/p>\n\n\n\n

\u5f53\u7136\u8fd9\u4e2a\u6d4b\u91cf\u503c\u662f\u5728\u82af\u7247\u7684SENSE-\u5f15\u811a\u6d4b\u91cf\u5230\u7684\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n
\uff082\uff09\u7535\u6d41I<\/h5>\n\n\n\n

\u7535\u6d41ADC\u6709\u6548\u4f4d\u4e3a12bit\uff0c\u5bc4\u5b58\u5668\u5730\u5740\u4e3a0Eh\u548c0Fh\u3002\u7535\u6d41\u5206\u6b63\u8d1f\uff0c\u53d6\u51b3\u4e8e\u7535\u6c60\u662f\u5728\u5145\u7535\u8fd8\u662f\u653e\u7535\u72b6\u6001\u3002<\/p>\n\n\n\n

0Fh\u5bc4\u5b58\u5668\u7684\u6700\u4f4e4\u4f4d\u4e00\u76f4\u90fd\u4fdd\u6301\u662f0\uff0c\u56e0\u4e3aADC\u53ea\u670912bit\u3002\u6240\u4ee5\u5f53\u5bc4\u5b58\u5668\u8bfb\u51faFFF0h\u7684\u65f6\u5019\uff0c\u4ee3\u8868\u7535\u6d41\u6d4b\u91cf\u7684\u6b63\u6ee1\u91cf\u7a0b64mV\uff1b\u5f53\u5bc4\u5b58\u5668\u8bfb\u51fa\u503c\u4e3a0000h\u65f6\uff0c\u4ee3\u8868\u7535\u6d41\u6d4b\u91cf\u503c\u4e3a\u8d1f\u6ee1\u91cf\u7a0b-64mV\u3002<\/p>\n\n\n\n

\u90a3\u4e48\uff0c\u5047\u8bbe\u7535\u6d41\u7684\u5bc4\u5b58\u5668\u8bfb\u51fa\u503c\u4e3aIc\uff0c\u5b9e\u9645\u6d4b\u91cf\u503c\u7684\u8ba1\u7b97\u65b9\u6cd5\u5c31\u662f\uff1a<\/p>\n\n\n\n

I=(64mV\/Rsense)*((Ic-32767)\/32767)<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u8ba1\u7b97\u7ed3\u679c\u4e3a\u6b63\u7684\u8bdd\uff0c\u8868\u793a\u5728\u5145\u7535\uff1b\u4e3a\u8d1f\u7684\u8bdd\u8868\u793a\u5728\u653e\u7535\u3002<\/p>\n\n\n\n

\uff083\uff09\u7535\u91cfmAH<\/h6>\n\n\n\n

\u7535\u91cf\u8ba1\u6570\u5668\uff08ACR\uff09\u4e5f\u662f16bit\uff0c\u6bcf\u4e00bit\u4ee3\u8868\u7684\u7535\u91cf\u53d6\u51b3\u4e8eM\uff08prescaler\uff09\u7684\u503c\u548cRsense\u7684\u503c\u3002<\/p>\n\n\n\n

\u516c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u901a\u8fc7\u8bfb\u53d6ACR\u7684\u503c\uff0c\u4e58\u4ee5Qlsb\u5373\u53ef\u5f97\u51fa\u5f53\u524d\u8bfb\u6570\u3002<\/p>\n\n\n\n

\u5728\u9ed8\u8ba4\u503cM=4096\u548cRsense=50m\u03a9\u7684\u60c5\u51b5\u4e0b\uff0c\u8ba1\u6570\u5668\u52a0\u6216\u51cf1\u6240\u4ee3\u8868\u7535\u91cf\u53d8\u53160.34mAH\u3002<\/p>\n\n\n\n

\u8fd9\u4e2a0.34\u600e\u4e48\u6765\u7684\u6211\u4e5f\u4e0d\u77e5\u9053\uff0c\u624b\u518c\u4e0a\u5c31\u662f\u8fd9\u4e48\u8bf4\u7684\u3002<\/p>\n\n\n\n

\u5355\u4f4d\u4e3amAH\uff0c\u8981\u6362\u7b97\u6210\u5e93\u4f26\u81ea\u5df1\u7b97\u3002<\/p>\n\n\n\n

\uff084\uff09\u6e29\u5ea6<\/h6>\n\n\n\n

\u6e29\u5ea6ADC\u6709\u6548\u4f4d\u4e3a11\u4f4d\uff0c\u6700\u4f4e5\u4f4d\u59cb\u7ec8\u4fdd\u6301\u4e3a0\uff0c\u901a\u8fc7\u4e0b\u9762\u516c\u5f0f\u76f4\u63a5\u7b97\u51fa\u5b9e\u9645\u6e29\u5ea6\uff1a<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u5355\u4f4dK\uff0c\u8981\u628a\u7ed3\u679c\u6362\u7b97\u6210\u2103\u7684\u8bdd\u81ea\u5df1\u7b97\u3002<\/p>\n\n\n\n

5.\u82af\u7247\u5de5\u4f5c\u6a21\u5f0f<\/h3>\n\n\n\n

\uff081\uff09shutdown\u6a21\u5f0f<\/h5>\n\n\n\n

\u63a7\u5236\u5bc4\u5b58\u5668bit0\u8bbe\u7f6e\u4e3a1\u53ef\u4ee5\u5c06\u82af\u7247\u8bbe\u7f6e\u4e3a\u5173\u95ed\u6a21\u5f0f\uff0c\u6b64\u65f6\u6574\u4e2a\u82af\u7247\u6a21\u62df\u90e8\u5206\uff0c\u5305\u62ec\u7535\u91cf\u8ba1\u6570\u5668\u3001ADC\u5168\u90e8\u505c\u6b62\u5de5\u4f5c\uff0c\u4f46\u662fI2C\u90e8\u5206\u4fdd\u6301\u5728\u5de5\u4f5c\uff0c\u82af\u7247\u8017\u7535\u91cf\u964d\u5230\u6700\u4f4e\u7ea615\u5fae\u5b89\u3002\u7535\u91cf\u8ba1\u6570\u5668ACR\u5728\u8fd9\u79cd\u6a21\u5f0f\u4e0b\u4e0d\u518d\u53d8\u5316\uff0c\u65e0\u6cd5\u8fdb\u884c\u7535\u91cf\u8ba1\u91cf\u3002<\/p>\n\n\n\n

\uff082\uff09ADC\u6a21\u5757\u7684\u56db\u79cd\u6a21\u5f0f<\/h5>\n\n\n\n

\u63a7\u5236\u5bc4\u5b58\u5668bit7\u548cbit6\u7ec4\u5408ADC\u62104\u4e2d\u5de5\u4f5c\u6a21\u5f0f\uff1a<\/p>\n\n\n\n

11\uff1a\u5168\u81ea\u52a8\u6a21\u5f0f\uff0c\u82af\u7247\u6301\u7eed\u8fdb\u884cADC\u8f6c\u6362\uff0c\u7ea630ms\u5b8c\u6210\u4e00\u6b21\uff1b<\/p>\n\n\n\n

10\uff1a\u626b\u63cf\u6a21\u5f0f\uff0c\u6bcf10\u79d2\u8fdb\u884c\u4e00\u6b21ADC\u8f6c\u6362\uff0c\u5176\u4f59\u65f6\u95f4\u4f11\u7720\uff1b<\/p>\n\n\n\n

01\uff1a\u4eba\u5de5\u6a21\u5f0f\uff0c\u4eba\u4e3a\u53d1\u547d\u4ee4\u542f\u52a8\u624d\u8fdb\u884c\u4e00\u6b21ADC\u8f6c\u6362\uff0c\u7136\u540e\u4f11\u7720\uff1b<\/p>\n\n\n\n

00\uff1a\u4f11\u7720\u6a21\u5f0f<\/p>\n\n\n\n

ADC\u8f6c\u6362\u6b21\u6570\u8d8a\u591a\uff0c\u8017\u7535\u8d8a\u5389\u5bb3\uff0c\u5168\u81ea\u52a8\u6a21\u5f0f\u4e0b\u8017\u7535\u7ea61mA\uff0c\u8be6\u89c1\u624b\u518c\u3002<\/p>\n\n\n\n

\u4e09\u3001\u9a71\u52a8\u7a0b\u5e8f<\/h2>\n\n\n\n

1.\u9a71\u52a8\u6e90\u7801<\/h3>\n\n\n\n

\u82af\u7247\u4e86\u89e3\u5b8c\u6210\u7ec8\u4e8e\u8981\u52a8\u624b\u7f16\u5199\u9a71\u52a8\u4e86\u3002Linear\uff08\u5df2\u88abADI\u6536\u8d2d\uff09\u4e13\u95e8\u4e3a\u8be5\u82af\u7247\u63d0\u4f9b\u4e86\u4e00\u4efd\u9a71\u52a8\u7a0b\u5e8f\uff0c\u5730\u5740: LTC2944 \u6570\u636e\u624b\u518c\u548c\u4ea7\u54c1\u4fe1\u606f | \u4e9a\u5fb7\u8bfa\uff08ADI\uff09\u534a\u5bfc\u4f53<\/a><\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u4f46\u662f\u8fd9\u4e2a\u7a0b\u5e8f\u662fLinduino\u5e73\u53f0\u7684\uff0c\u8fd9\u4e2a\u4e1c\u4e1c\u54b1\u4e5f\u6ca1\u7528\u8fc7\uff0c\u4f46\u662f\u6e90\u7801\u8fd8\u662f\u53ef\u4ee5\u53c2\u8003\u4e0b\u7684\u3002<\/p>\n\n\n\n

\u4e0b\u9762\u6211\u4eec\u628a\u94fe\u63a5\u4e0a\u7684LTC2944.h\u548cLTC2944.cpp\u4e0b\u8f7d\u4e0b\u6765\u8fdb\u884c\u6539\u9020\u3002<\/p>\n\n\n\n

\u8be6\u7ec6\u7684\u6539\u9020\u8fc7\u7a0b\u7701\u7565\u4e86\uff0c\u5bf9\u6539\u9020\u8fc7\u7a0b\u611f\u5174\u8da3\u7684\u53ef\u4ee5\u5bf9\u6bd4\u4e0b\u4e0b\u9762\u4ee3\u7801\u548c\u539f\u6765\u7684\u4ee3\u7801\u4e4b\u95f4\u7684\u5dee\u5f02\u3002<\/p>\n\n\n\n

\u4e3b\u8981\u6539\u90204\u4e2a\u51fd\u6570\uff1a<\/p>\n\n\n\n

int8_t LTC2944_write(uint8_t i2c_address, uint8_t adc_command, uint8_t code);
int8_t  LTC2944_write_16_bits(uint8_t i2c_address, uint8_t adc_command, uint16_t code);
int8_t  LTC2944_read(uint8_t i2c_address, uint8_t adc_command, uint8_t *adc_code);
int8_t  LTC2944_read_16_bits(uint8_t i2c_address, uint8_t adc_command, uint16_t *adc_code)<\/p>\n\n\n\n

\u8fd94\u4e2a\u51fd\u6570\u662f\u5bf9\u603b\u7ebf\u7684\u64cd\u4f5c\uff0c\u6539\u9020\u5185\u5bb9\u662f\u628aI2C\u7684\u64cd\u4f5c\u65b9\u6cd5\u6539\u6210Wire\u65b9\u6cd5\uff0c\u5176\u4ed6\u51fd\u6570\u57fa\u672c\u90fd\u662f\u5185\u90e8\u8ba1\u7b97\u51fd\u6570\uff0c\u4e0d\u7528\u6539\u9020\u3002\u5176\u4ed6\u7684\u6539\u9020\u5185\u5bb9\u90fd\u662f\u4e3a\u4e86\u65b9\u4fbf\u4f7f\u7528\u800c\u6539\u9020\u7684\uff0c\u5305\u62ec\u589e\u52a0\u4e00\u4e9b\u64cd\u4f5c\u51fd\u6570\u3002<\/p>\n\n\n\n

\u76f4\u63a5\u7ed9\u51fa\u6539\u9020\u540e\u7684\u6e90\u7801\u5982\u4e0b\u3002<\/p>\n\n\n\n

LTC2944.h<\/p>\n\n\n\n

#ifndef LTC2944_h\n#define LTC2944_h\n \n#include \"Arduino.h\"\n#include \"Wire.h\"\n\n\n#define I2C_ADDRESS_LTC2944 0x64\n\/\/#define I2C_ADDR_LTC2944 144\n\n\/\/Registers\n#define LTC2944_STATUS_REG                          0x00\n#define LTC2944_CONTROL_REG                         0x01\n#define LTC2944_ACCUM_CHARGE_MSB_REG                0x02\n#define LTC2944_ACCUM_CHARGE_LSB_REG                0x03\n#define LTC2944_CHARGE_THRESH_HIGH_MSB_REG          0x04\n#define LTC2944_CHARGE_THRESH_HIGH_LSB_REG          0x05\n#define LTC2944_CHARGE_THRESH_LOW_MSB_REG           0x06\n#define LTC2944_CHARGE_THRESH_LOW_LSB_REG           0x07\n#define LTC2944_VOLTAGE_MSB_REG                     0x08\n#define LTC2944_VOLTAGE_LSB_REG                     0x09\n#define LTC2944_VOLTAGE_THRESH_HIGH_MSB_REG         0x0A\n#define LTC2944_VOLTAGE_THRESH_HIGH_LSB_REG         0x0B\n#define LTC2944_VOLTAGE_THRESH_LOW_MSB_REG          0x0C\n#define LTC2944_VOLTAGE_THRESH_LOW_LSB_REG          0x0D\n#define LTC2944_CURRENT_MSB_REG                     0x0E\n#define LTC2944_CURRENT_LSB_REG                     0x0F\n#define LTC2944_CURRENT_THRESH_HIGH_MSB_REG         0x10\n#define LTC2944_CURRENT_THRESH_HIGH_LSB_REG         0x11\n#define LTC2944_CURRENT_THRESH_LOW_MSB_REG          0x12\n#define LTC2944_CURRENT_THRESH_LOW_LSB_REG          0x13\n#define LTC2944_TEMPERATURE_MSB_REG                 0x14\n#define LTC2944_TEMPERATURE_LSB_REG                 0x15\n#define LTC2944_TEMPERATURE_THRESH_HIGH_REG         0x16\n#define LTC2944_TEMPERATURE_THRESH_LOW_REG          0x17\n\n\/\/ Command Codes\n#define LTC2944_AUTOMATIC_MODE                      0xC0\n#define LTC2944_SCAN_MODE                           0x80\n#define LTC2944_MANUAL_MODE                         0x40\n#define LTC2944_SLEEP_MODE                          0x00\n#define LTC2944_PRESCALAR_M_1                       0x00\n#define LTC2944_PRESCALAR_M_4                       0x08\n#define LTC2944_PRESCALAR_M_16                      0x10\n#define LTC2944_PRESCALAR_M_64                      0x18\n#define LTC2944_PRESCALAR_M_256                     0x20\n#define LTC2944_PRESCALAR_M_1024                    0x28\n#define LTC2944_PRESCALAR_M_4096                    0x30\n#define LTC2944_PRESCALAR_M_4096_2                  0x31\n#define LTC2944_ALERT_MODE                          0x04\n#define LTC2944_CHARGE_COMPLETE_MODE                0x02\n#define LTC2944_DISABLE_ALCC_PIN                    0x00\n#define LTC2944_SHUTDOWN_MODE                       0x01\n#define LTC2944_SHUTDOWN_MODE_UNDO                  0x00\n\n\n\n\nclass I2CLTC2944\n{\n  public:\n    I2CLTC2944(TwoWire * ptrI2CBus)\n    {\n      _ptrI2CBus=ptrI2CBus;\n    }\n\n    int8_t  LTC2944_write(uint8_t i2c_address, uint8_t adc_command, uint8_t code);\n    int8_t  LTC2944_write_16_bits(uint8_t i2c_address, uint8_t adc_command, uint16_t code);\n    int8_t  LTC2944_read(uint8_t i2c_address, uint8_t adc_command, uint8_t *adc_code);\n    int8_t  LTC2944_read_16_bits(uint8_t i2c_address, uint8_t adc_command, uint16_t *adc_code);\n    float   LTC2944_code_to_coulombs(uint16_t adc_code, float resistor, uint16_t prescalar);\n    float   LTC2944_code_to_mAh(uint16_t adc_code, float resistor, uint16_t prescalar );\n    float   LTC2944_code_to_voltage(uint16_t adc_code);\n    float   LTC2944_code_to_current(uint16_t adc_code, float resistor);\n    float   LTC2944_code_to_kelvin_temperature(uint16_t adc_code);\n    float   LTC2944_code_to_celcius_temperature(uint16_t adc_code);\n    int8_t  LTC2944_register_set_clear_bits(uint8_t i2c_address, uint8_t register_address, uint8_t bits_to_set, uint8_t bits_to_clear);  \n    int8_t  LTC2944_set_mode(uint8_t i2c_address,uint8_t mode);\n    int8_t  LTC2944_set_prescalar(uint8_t i2c_address,uint16_t prescalarVal);\n    int8_t  LTC2944_set_ALCC(uint8_t i2c_address,uint8_t ALCCMode);\n    int8_t  LTC2944_set_shutdown(uint8_t i2c_address,uint8_t shutdown);\n    int8_t  LTC2944_set_ACR_full(uint8_t i2c_address);\n\n  private:\n    TwoWire * _ptrI2CBus;\n};\n \n#endif<\/pre>\n\n\n\n
LTC2944.cpp<\/p>\n\n\n\n
#include \"Arduino.h\"\n#include \"LTC2944.h\"\n\n\n\n\/\/Conversion Constants\nconst float LTC2944_CHARGE_lsb = 0.34E-3;\nconst float LTC2944_VOLTAGE_lsb = 1.068E-3;\nconst float LTC2944_CURRENT_lsb = 29.3E-6;\nconst float LTC2944_TEMPERATURE_lsb = 0.25;\nconst float LTC2944_FULLSCALE_VOLTAGE = 70;\nconst float LTC2944_FULLSCALE_CURRENT = 60E-3;\nconst float LTC2944_FULLSCALE_TEMPERATURE = 510;\n\nconst float resistor = .020;                               \/\/!< resistor value \n\n\n\n\nint8_t I2CLTC2944::LTC2944_write(uint8_t i2c_address, uint8_t adc_command, uint8_t code)\n{\n  \/\/ Write an 8-bit code to the LTC2944.\n  \/\/ The function returns the state of the acknowledge bit after the I2C address write. 0=acknowledge, 1=no acknowledge.\n  int32_t ack;\n  \/\/ack = i2c_write_byte_data(i2c_address, adc_command, code);\n  _ptrI2CBus->beginTransmission(i2c_address);\n  _ptrI2CBus->write(adc_command);\n  _ptrI2CBus->write(code);\n  ack=_ptrI2CBus->endTransmission(true);\n  return(ack);\n}\n\n\nint8_t I2CLTC2944::LTC2944_write_16_bits(uint8_t i2c_address, uint8_t adc_command, uint16_t code)\n{\n  \/\/ Write a 16-bit code to the LTC2944.\n  \/\/ The function returns the state of the acknowledge bit after the I2C address write. 0=acknowledge, 1=no acknowledge.\n  int8_t ack;\n  \/\/ack = i2c_write_word_data(i2c_address, adc_command, code);\n  _ptrI2CBus->beginTransmission(i2c_address);\n  _ptrI2CBus->write(adc_command);\n  _ptrI2CBus->write(code);\n  ack=_ptrI2CBus->endTransmission(true);  \n  return(ack);\n}\n\n\n\nint8_t I2CLTC2944::LTC2944_read(uint8_t i2c_address, uint8_t adc_command, uint8_t *adc_code)\n{\n  \/\/ Reads an 8-bit adc_code from LTC2944\n  \/\/ The function returns the state of the acknowledge bit after the I2C address write. 0=acknowledge, 1=no acknowledge.\n  int32_t ack;\n  \/\/ack = i2c_read_byte_data(i2c_address, adc_command, adc_code);\n  _ptrI2CBus->flush();\n  _ptrI2CBus->beginTransmission(i2c_address);\n  _ptrI2CBus->write(adc_command);\n  ack=_ptrI2CBus->endTransmission(false);    \n  uint8_t bytesReceived=0;\n  bytesReceived=_ptrI2CBus->requestFrom(i2c_address,1);\n  if(bytesReceived==1)\n  {\n    *adc_code=_ptrI2CBus->read();\n  }\n  else\n  {\n    \/\/Serial.println(\"LTC2944_read reply error!\");\n  }\n  return(ack);\n}\n\nint8_t I2CLTC2944::LTC2944_read_16_bits(uint8_t i2c_address, uint8_t adc_command, uint16_t *adc_code)\n{\n  \/\/ Reads a 16-bit adc_code from LTC2944\n  \/\/ The function returns the state of the acknowledge bit after the I2C address write. 0=acknowledge, 1=no acknowledge.\n  int32_t ack;\n  \/\/ack = i2c_read_word_data(i2c_address, adc_command, adc_code);\n  _ptrI2CBus->flush();\n  _ptrI2CBus->beginTransmission(i2c_address);\n  _ptrI2CBus->write(adc_command);\n  ack=_ptrI2CBus->endTransmission(false);    \n  uint8_t bytesReceived=0;\n  uint8_t temp[2];\n  bytesReceived=_ptrI2CBus->requestFrom(i2c_address,2);\n  if(bytesReceived==2)\n  {\n    temp[0]=_ptrI2CBus->read();\n    \/\/Serial.print(\"MSB=\");Serial.println(temp[0]);\n    temp[1]=_ptrI2CBus->read();\n    \/\/Serial.print(\"LSB=\");Serial.println(temp[1]);\n    \/\/_ptrI2CBus->readBytes(temp, bytesReceived);\n    *adc_code=temp[0]*256+temp[1];\n  }\n  else\n  {\n    \/\/Serial.print(\"read NOT 2 bytes! recv bytes=\");Serial.println(bytesReceived);\n  }\n  return(ack);  \n}\n\n\nfloat I2CLTC2944::LTC2944_code_to_coulombs(uint16_t adc_code, float resistor, uint16_t prescalar)\n{\n  \/\/ The function converts the 16-bit RAW adc_code to Coulombs\n  float coulomb_charge;\n  coulomb_charge =  1000*(float)(adc_code*LTC2944_CHARGE_lsb*prescalar*50E-3)\/(resistor*4096);\n  coulomb_charge = coulomb_charge*3.6f;\n  return(coulomb_charge);\n}\n\nfloat I2CLTC2944::LTC2944_code_to_mAh(uint16_t adc_code, float resistor, uint16_t prescalar )\n{\n  \/\/ The function converts the 16-bit RAW adc_code to mAh\n  float mAh_charge;\n  mAh_charge = 1000*(float)(adc_code*LTC2944_CHARGE_lsb*prescalar*50E-3)\/(resistor*4096);\n  return(mAh_charge);\n}\n\nfloat I2CLTC2944::LTC2944_code_to_voltage(uint16_t adc_code)\n{\n  \/\/ The function converts the 16-bit RAW adc_code to Volts\n  float voltage;\n  voltage = ((float)adc_code\/(65535))*LTC2944_FULLSCALE_VOLTAGE;\n  return(voltage);\n}\n\nfloat I2CLTC2944::LTC2944_code_to_current(uint16_t adc_code, float resistor)\n{\n  \/\/ The function converts the 16-bit RAW adc_code to Amperes\n  float current;\n  current = (((float)adc_code-32767)\/(32767))*((float)(LTC2944_FULLSCALE_CURRENT)\/resistor);\n  return(current);\n}\n\nfloat I2CLTC2944::LTC2944_code_to_kelvin_temperature(uint16_t adc_code)\n{\n  \/\/ The function converts the 16-bit RAW adc_code to Kelvin\n  float temperature;\n  temperature = adc_code*((float)(LTC2944_FULLSCALE_TEMPERATURE)\/65535);\n  return(temperature);\n}\n\nfloat I2CLTC2944::LTC2944_code_to_celcius_temperature(uint16_t adc_code)\n{\n  \/\/ The function converts the 16-bit RAW adc_code to Celcius\n  float temperature;\n  temperature = adc_code*((float)(LTC2944_FULLSCALE_TEMPERATURE)\/65535) - 273.15;\n  return(temperature);\n}\n\n\nint8_t I2CLTC2944::LTC2944_register_set_clear_bits(uint8_t i2c_address, uint8_t register_address, uint8_t bits_to_set, uint8_t bits_to_clear)\n{\n  \/\/ Used to set and clear bits in a control register.  bits_to_set will be bitwise OR'd with the register.\n  \/\/ bits_to_clear will be inverted and bitwise AND'd with the register so that every location with a 1 will result in a 0 in the register.  \n  uint8_t register_data;\n  int8_t ack = 0;\n\n  ack |= LTC2944_read(i2c_address, register_address, &register_data);\n  register_data = register_data & (~bits_to_clear);\n  register_data = register_data | bits_to_set;\n  ack |= LTC2944_write(i2c_address, register_address, register_data);\n  return(ack);\n}\n\n\nint8_t I2CLTC2944::LTC2944_set_mode(uint8_t i2c_address,uint8_t mode)\n{\n  \/\/\"mode\" must be one of the defined symbols:\n  \/\/    LTC2944_AUTOMATIC_MODE,LTC2944_SCAN_MODE,LTC2944_MANUAL_MODE,LTC2944_SLEEP_MODE\n  uint8_t curCode;\n  uint8_t setCode;\n  int8_t ack = 0;\n  ack |= LTC2944_read(i2c_address, LTC2944_CONTROL_REG, &curCode);\n  setCode = mode | (curCode & B00111111);\/\/B[7:6]\n  ack |= LTC2944_write(i2c_address, LTC2944_CONTROL_REG, setCode);\n  return(ack);\n}\n\nint8_t I2CLTC2944::LTC2944_set_prescalar(uint8_t i2c_address,uint16_t prescalarVal)\n{\n  \/\/\"prescalarVal\" must be one of the defined symbols:\n  \/\/    LTC2944_PRESCALAR_M_1,LTC2944_PRESCALAR_M_4,LTC2944_PRESCALAR_M_16\n  \/\/    LTC2944_PRESCALAR_M_64,LTC2944_PRESCALAR_M_256,LTC2944_PRESCALAR_M_1024\n  \/\/    LTC2944_PRESCALAR_M_4096\n  uint8_t curCode;\n  uint8_t setCode;\n  int8_t ack = 0;\n  LTC2944_read(i2c_address,LTC2944_CONTROL_REG,&curCode);\n  setCode = prescalarVal | (curCode & B11000111);\/\/B[5:3]\n  ack |= LTC2944_write(i2c_address, LTC2944_CONTROL_REG, setCode);\n  return(ack);\n}\n\nint8_t I2CLTC2944::LTC2944_set_ALCC(uint8_t i2c_address,uint8_t ALCCMode)\n{\n  \/\/\"ALCCMode\"  must be one of the defined symbols:\n  \/\/    LTC2944_ALERT_MODE,LTC2944_CHARGE_COMPLETE_MODE,LTC2944_DISABLE_ALCC_PIN,LTC2944_SHUTDOWN_MODE\n  uint8_t curCode;\n  uint8_t setCode;\n  int8_t ack = 0;\n  ack |= LTC2944_read(i2c_address, LTC2944_CONTROL_REG, &curCode);\n  setCode = ALCCMode | (curCode & B11111001);\/\/B[2:1]\n  ack |= LTC2944_write(i2c_address, LTC2944_CONTROL_REG, setCode);\n  return(ack);\n}\n\nint8_t I2CLTC2944::LTC2944_set_shutdown(uint8_t i2c_address,uint8_t shutdown)\n{\n  \/\/\"ALCCMode\"  must be one of the defined symbols:\n  \/\/    LTC2944_SHUTDOWN_MODE,LTC2944_SHUTDOWN_MODE_UNDO\n  uint8_t curCode;\n  uint8_t setCode;\n  int8_t ack = 0;\n  ack |= LTC2944_read(i2c_address, LTC2944_CONTROL_REG, &curCode);\n  setCode = shutdown | (curCode & B11111110);\/\/B[0]\n  ack |= LTC2944_write(i2c_address, LTC2944_CONTROL_REG, setCode);\n  return(ack);\n}\n\nint8_t I2CLTC2944::LTC2944_set_ACR_full(uint8_t i2c_address)\n{\n  \/\/set ACR to 0xFFFF\n  uint8_t curCode;\n  uint8_t setCode;\n  int8_t ack = 0;\n  ack |= LTC2944_write(i2c_address, LTC2944_ACCUM_CHARGE_MSB_REG, 0xff);  \n  ack |= LTC2944_write(i2c_address, LTC2944_ACCUM_CHARGE_LSB_REG, 0xff);   \n  return(ack);\n}\n\n\n<\/pre>\n\n\n\n
2.\u8c03\u7528\u65b9\u6cd5\u53ca\u6d4b\u8bd5\u4ee3\u7801<\/h3>\n\n\n\n
\u7f16\u5199\u6d4b\u8bd5\u4ee3\u7801\u5982\u4e0b\u3002\u6ce8\u610f\u6211\u7684Rsense=20m\u03a9\uff0cM\u7684\u503c\u4fdd\u6301\u4e3a\u9ed8\u8ba4\u503c4096\u6211\u6ca1\u6709\u4fee\u6539\u5b83\u3002<\/p>\n\n\n\n
#include \"Wire.h\"\n\n#include \"LTC2944.h\"\n\n\nI2CLTC2944 objI2CLTC2944(&Wire1);\nconst float resistor = .020;   \/\/\u6211\u7684Rsense\u662f20\u6beb\u6b27\u7684\n\nvoid setup() {\n  Serial.begin(115200);\n  pinMode(14,OUTPUT);\n  digitalWrite(14,HIGH);\/\/\u6253\u5f00\u5916\u56f4\u8bbe\u5907\u4f9b\u7535\uff0c\u7528\u4e0d\u5230\u5c31\u5220\u6389\n\n  uint8_t data;\n  uint16_t data16;\n  float voltage;\n  int8_t reply;\n\n  Wire1.begin(41,42);\/\/\u6539\u6210\u4f60\u81ea\u5df1\u7684I2C\u603b\u7ebf\u5f15\u811a\n  delay(1000);\n\n  objI2CLTC2944.LTC2944_set_shutdown(I2C_ADDRESS_LTC2944,LTC2944_SHUTDOWN_MODE_UNDO);\/\/undoshutdown\uff0c\u4f7f\u82af\u7247\u5de5\u4f5c\n  objI2CLTC2944.LTC2944_set_mode(I2C_ADDRESS_LTC2944,LTC2944_AUTOMATIC_MODE);\/\/\u8bbe\u7f6e\u4e3a\u81ea\u52a8\u6a21\u5f0f\n  reply=objI2CLTC2944.LTC2944_read(I2C_ADDRESS_LTC2944,LTC2944_CONTROL_REG,&data);\n  Serial.printf(\"LTC2944 read data= 0x%02X\\n\", data);\n  delay(1000);\n  objI2CLTC2944.LTC2944_set_mode(I2C_ADDRESS_LTC2944,LTC2944_SCAN_MODE);\n  reply=objI2CLTC2944.LTC2944_read(I2C_ADDRESS_LTC2944,LTC2944_CONTROL_REG,&data);\n  Serial.printf(\"LTC2944 read data= 0x%02X\\n\", data);\n  delay(1000);\n  objI2CLTC2944.LTC2944_set_mode(I2C_ADDRESS_LTC2944,LTC2944_MANUAL_MODE);\n  reply=objI2CLTC2944.LTC2944_read(I2C_ADDRESS_LTC2944,LTC2944_CONTROL_REG,&data);\n  Serial.printf(\"LTC2944 read data= 0x%02X\\n\", data);\n  delay(1000);\n  objI2CLTC2944.LTC2944_set_mode(I2C_ADDRESS_LTC2944,LTC2944_SLEEP_MODE);\n  reply=objI2CLTC2944.LTC2944_read(I2C_ADDRESS_LTC2944,LTC2944_CONTROL_REG,&data);\n  Serial.printf(\"LTC2944 read data= 0x%02X\\n\", data);\n  delay(1000);  \n\n  objI2CLTC2944.LTC2944_set_mode(I2C_ADDRESS_LTC2944,LTC2944_AUTOMATIC_MODE);\n  reply=objI2CLTC2944.LTC2944_read(I2C_ADDRESS_LTC2944,LTC2944_CONTROL_REG,&data);\n  Serial.printf(\"LTC2944 read data= 0x%02X\\n\", data);\n  delay(1000);\n\n  objI2CLTC2944.LTC2944_set_mode(I2C_ADDRESS_LTC2944,LTC2944_AUTOMATIC_MODE);\n  reply=objI2CLTC2944.LTC2944_read(I2C_ADDRESS_LTC2944,LTC2944_CONTROL_REG,&data);\n  Serial.printf(\"LTC2944 read data= 0x%02X\\n\", data);\n  delay(1000);\n\n  \/\/objI2CLTC2944.LTC2944_set_ACR_full(I2C_ADDRESS_LTC2944);\u7535\u6c60\u5145\u6ee1\u72b6\u6001\u4e0b\u8ba4\u4e3a\u8bbe\u7f6eACR\u4e3a0xFFFF\uff0c\u4fbf\u4e8e\u5b9e\u9645\u8ba1\u7b97\u7535\u6c60\u7535\u91cf\n}\n\nvoid loop() {\n  byte error, address;\n  int nDevices = 0;\n  uint8_t data;\n  uint16_t data16;\n  float voltage;\n  float current;\n  int8_t reply;\n\n\n\n  objI2CLTC2944.LTC2944_read_16_bits(I2C_ADDRESS_LTC2944,LTC2944_VOLTAGE_MSB_REG,&data16);\n  Serial.printf(\"LTC2944 read data= 0x%04X\\n\", data16);\n  voltage=objI2CLTC2944.LTC2944_code_to_voltage(data16);\n  Serial.print(\"read voltage=\");Serial.println(voltage);\n  delay(1000);  \n  objI2CLTC2944.LTC2944_read_16_bits(I2C_ADDRESS_LTC2944,LTC2944_CURRENT_MSB_REG,&data16);\n  Serial.printf(\"LTC2944 read data= 0x%04X\\n\", data16);\n  current=objI2CLTC2944.LTC2944_code_to_current(data16,resistor)*1000;\n  Serial.print(\"read current=\");Serial.print(current);Serial.println(\"mA\");\n  delay(1000);    \n\/*\n  \/\/\u626b\u63cfI2C\u603b\u7ebf\u770b\u82af\u7247\u5728\u603b\u7ebf\u4e0a\u4e0d\n  Serial.println(\"Scanning for I2C devices ...\");\n  for(address = 0x01; address < 0x7f; address++){\n    Wire1.beginTransmission(address);\n    error = Wire1.endTransmission();\n    if (error == 0){\n      Serial.printf(\"I2C device found at address 0x%02X\\n\", address);\n      nDevices++;\n    } else if(error != 2){\n      Serial.printf(\"Error %d at address 0x%02X\\n\", error, address);\n    }\n  }\n  if (nDevices == 0){\n    Serial.println(\"No I2C devices found\");\n  }\n  *\/\n}\n<\/pre>\n\n\n\n
\u4e0b\u8f7d\u540eCPU\u4ece\u4e32\u53e3\u6301\u7eed\u8f93\u51fa\u7535\u6d41\u548c\u7535\u538b\u6d4b\u91cf\u503c\u3002<\/p>\n\n\n\n
3.\u7535\u8def\u90e8\u5206<\/h3>\n\n\n\n
LTC2944\u7684\u7535\u8def\u6bd4\u8f83\u7b80\u5355\uff0c\u628a\u5145\u7535\u90e8\u5206\u7684\u7535\u8def\u4e5f\u4e00\u5e76\u8d34\u4e0a\u3002\u5de6\u8fb9\u662f\u5145\u7535\u6a21\u5757\uff0c\u53f3\u8fb9\u662fLTC2944<\/p>\n\n\n\n
\"\"<\/figure>\n\n\n\n
PCB\u6548\u679c\u56fe\uff0cC13\u5de6\u8fb9\u5c31\u662fLTC2944<\/p>\n\n\n\n
\"\"<\/figure>\n\n\n\n
\u56db\u3001\u8865\u5145\u7684\u4e1c\u897f<\/h2>\n\n\n\n
1.\u7535\u91cf\u5bb9\u91cf\u767e\u5206\u6bd4\u7684\u8ba1\u7b97<\/h3>\n\n\n\n
\u8fd9\u4e2a\u82af\u7247\u662f\u4e0e\u6709\u4e9b\u7535\u91cf\u8ba1\u82af\u7247\u76f8\u6bd4\uff0c\u662f\u4e0d\u5185\u7f6e\u7535\u6c60\u6a21\u578b\u7684\uff0c\u56e0\u6b64\u5b83\u5e76\u4e0d\u77e5\u9053\u4f60\u7535\u6c60\u7684\u5b9e\u9645\u5bb9\u91cf\uff0c\u53ea\u662f\u7b80\u5355\u7684\u5bf9\u7535\u91cf\u8fdb\u884c\u52a0\u51cf\u8ba1\u6570\u3002\u6240\u4ee5\u8981\u5f97\u51fa\u7535\u6c60\u5bb9\u91cf\u767e\u5206\u6bd4\uff0c\u9700\u8981\u4f60\u6839\u636e\u4f7f\u7528\u60c5\u51b5\u81ea\u5df1\u5efa\u7acb\u7535\u6c60\u6a21\u578b\uff0c\u6bd4\u5982\u5728\u7535\u6c60\u5145\u6ee1\u7684\u60c5\u51b5\u4e0b\u628aACR\u7f6e0xFFFF\uff0c\u7136\u540e\u5f85\u7535\u6c60\u653e\u7a7a\u65f6\u8bfb\u51faACR\u7684\u503c\uff0c\u75280xFFFF\u51cf\u53bbACR\u8bfb\u51fa\u503c\u6765\u8ba1\u7b97\u51fa\u4f60\u7535\u6c60\u7684\u5b9e\u9645\u5bb9\u91cf\u3002\u7136\u540e\u5728\u540e\u9762\u7684\u5e94\u7528\u8fc7\u7a0b\u4e2d\u5c31\u53ef\u4ee5\u6839\u636e\u5f53\u65f6ACR\u7684\u8bfb\u51fa\u503c\u9664\u4ee5\u7535\u6c60\u5bb9\u91cf\u6765\u8ba1\u7b97\u5f53\u524d\u7535\u91cf\u767e\u5206\u6bd4\u3002<\/p>\n\n\n\n
\u7136\u800c\uff0c\u7535\u6c60\u5bb9\u91cf\u4f1a\u968f\u7740\u7535\u6c60\u5bff\u547d\u3001\u73af\u5883\u7b49\u56e0\u7d20\u6539\u53d8\u7684\uff0c\u6240\u4ee5\u4f60\u4e5f\u9700\u8981\u6839\u636e\u8fd9\u4e9b\u60c5\u51b5\u6765\u4e0d\u65ad\u4fee\u6b63\u7535\u6c60\u603b\u5bb9\u91cf\uff0c\u4ee5\u4fbf\u5f97\u51fa\u66f4\u51c6\u786e\u7684\u767e\u5206\u6bd4\u3002<\/p>\n\n\n\n
2.ACR\u503c\u7684\u4fdd\u5b58<\/h3>\n\n\n\n
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