{"id":51278,"date":"2025-08-10T20:34:47","date_gmt":"2025-08-10T12:34:47","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/51278.html"},"modified":"2025-08-10T20:34:47","modified_gmt":"2025-08-10T12:34:47","slug":"%e7%94%b5%e5%ad%90%e7%a7%a4%e8%8a%af%e7%89%87hx711%e5%8e%9f%e7%90%86%e5%9b%be%e5%88%86%e4%ba%ab","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/51278.html","title":{"rendered":"\u7535\u5b50\u79e4\u82af\u7247hx711\u539f\u7406\u56fe\u5206\u4eab"},"content":{"rendered":"<\/p>\n<h4>\u7535\u5b50\u79e4\u82af\u7247hx711\u539f\u7406\u56fe\u5206\u4eab<\/h4>\n<ul>\n<li>\u4e00\u3001hx711\u4ecb\u7ecd<\/li>\n<li>\n<ul>\n<li>1\u3001\u82af\u7247\u6982\u8ff0<\/li>\n<li>2\u3001\u5185\u90e8\u7ed3\u6784\u6846\u56fe<\/li>\n<li>3\u3001\u5173\u952e\u7279\u6027\u8be6\u89e3<\/li>\n<li>4\u3001\u5f15\u811a\u529f\u80fd<\/li>\n<li>5\u3001\u5de5\u4f5c\u65f6\u5e8f<\/li>\n<li>6\u3001\u8bbe\u8ba1\u6ce8\u610f\u4e8b\u9879<\/li>\n<li>7\u3001\u5e38\u89c1\u6545\u969c\u6392\u67e5<\/li>\n<\/ul>\n<\/li>\n<li>\u4e8c\u3001\u539f\u7406\u56fe\u5206\u4eab<\/li>\n<li>\u4e09\u3001\u9a71\u52a8\u4ee3\u7801<\/li>\n<\/ul>\n<h2>\u4e00\u3001hx711\u4ecb\u7ecd<\/h2>\n<h3>1\u3001\u82af\u7247\u6982\u8ff0<\/h3>\n<p>HX711\u662f\u4e00\u6b3e\u4e13\u4e3a\u9ad8\u7cbe\u5ea6\u7535\u5b50\u79e4\u8bbe\u8ba1\u768424\u4f4d\u6a21\u6570\u8f6c\u6362\u5668&#xff08;ADC&#xff09;&#xff0c;\u5177\u6709\u4ee5\u4e0b\u6838\u5fc3\u7279\u6027&#xff1a;<\/p>\n<li>\u5206\u8fa8\u7387&#xff1a;24\u4f4d\u65e0\u7f3a\u5931\u7801<\/li>\n<li>\u91c7\u6837\u901f\u7387&#xff1a;10SPS\u621680SPS\u53ef\u9009<\/li>\n<li>\u8f93\u5165\u901a\u9053&#xff1a;\u53cc\u8def\u5dee\u5206\u8f93\u5165&#xff08;\u901a\u9053A\u548c\u901a\u9053B&#xff09;<\/li>\n<li>\u589e\u76ca\u53ef\u8c03&#xff1a;\u901a\u9053A\u652f\u6301128\/64\u500d\u589e\u76ca&#xff0c;\u901a\u9053B\u56fa\u5b9a32\u500d\u589e\u76ca<\/li>\n<li>\u5de5\u4f5c\u7535\u538b&#xff1a;2.6V~5.5V<\/li>\n<li>\u5c01\u88c5\u5f62\u5f0f&#xff1a;SOP-16<\/li>\n<hr \/>\n<h3>2\u3001\u5185\u90e8\u7ed3\u6784\u6846\u56fe<\/h3>\n<p>&#043;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;&#043;<br \/>\n| \u6a21\u62df\u8f93\u5165 (IN&#043;\/-)      |\u2192 PGA \u2192 \u03a3\u0394\u8c03\u5236\u5668 \u2192 \u6570\u5b57\u6ee4\u6ce2\u5668 \u2192 \u4e32\u884c\u63a5\u53e3<br \/>\n| \u57fa\u51c6\u7535\u538b (V_{BG})    |\u2191<br \/>\n| \u65f6\u949f\u7ba1\u7406 (OSC)        |<br \/>\n&#043;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;&#043;<\/p>\n<hr \/>\n<h3>3\u3001\u5173\u952e\u7279\u6027\u8be6\u89e3<\/h3>\n<li>\n<p>\u5dee\u5206\u8f93\u5165\u8bbe\u8ba1<\/p>\n<ul>\n<li>\u901a\u9053A&#xff1a;<span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\">\n<p>            V<\/p>\n<p>             I<\/p>\n<p>             N<\/p>\n<p>           &#061;<\/p>\n<p>           (<\/p>\n<p>           A<\/p>\n<p>           &#043;<\/p>\n<p>           \u2212<\/p>\n<p>           A<\/p>\n<p>           \u2212<\/p>\n<p>           )<\/p>\n<p>          V_{IN} &#061; (A&#043; &#8211; A-)<\/p>\n<p>       <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.8333em;vertical-align: -0.15em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right: 0.2222em\">V<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3283em\"><span class=\"\" style=\"top: -2.55em;margin-left: -0.2222em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.0785em\">I<\/span><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.109em\">N<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.15em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">&#061;<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 1em;vertical-align: -0.25em\"><\/span><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">&#043;<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 1em;vertical-align: -0.25em\"><\/span><span class=\"mord\">\u2212<\/span><span class=\"mord mathnormal\">A<\/span><span class=\"mord\">\u2212<\/span><span class=\"mclose\">)<\/span><\/span><\/span><\/span><\/span><\/li>\n<li>\u901a\u9053B&#xff1a;<span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\">\n<p>            V<\/p>\n<p>             I<\/p>\n<p>             N<\/p>\n<p>           &#061;<\/p>\n<p>           (<\/p>\n<p>           B<\/p>\n<p>           &#043;<\/p>\n<p>           \u2212<\/p>\n<p>           B<\/p>\n<p>           \u2212<\/p>\n<p>           )<\/p>\n<p>          V_{IN} &#061; (B&#043; &#8211; B-)<\/p>\n<p>       <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.8333em;vertical-align: -0.15em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right: 0.2222em\">V<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3283em\"><span class=\"\" style=\"top: -2.55em;margin-left: -0.2222em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.0785em\">I<\/span><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.109em\">N<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.15em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">&#061;<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 1em;vertical-align: -0.25em\"><\/span><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0502em\">B<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">&#043;<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 1em;vertical-align: -0.25em\"><\/span><span class=\"mord\">\u2212<\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0502em\">B<\/span><span class=\"mord\">\u2212<\/span><span class=\"mclose\">)<\/span><\/span><\/span><\/span><\/span><\/li>\n<li>\u5171\u6a21\u6291\u5236\u6bd4&#xff08;CMRR&#xff09;&#xff1a;&gt;100dB<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u53ef\u7f16\u7a0b\u589e\u76ca\u653e\u5927\u5668&#xff08;PGA&#xff09;<\/p>\n<table>\n<tr>\u901a\u9053\u53ef\u9009\u589e\u76ca\u9002\u7528\u573a\u666f<\/tr>\n<tbody>\n<tr>\n<td>A<\/td>\n<td>128<\/td>\n<td>\u6865\u5f0f\u4f20\u611f\u5668&#xff08;\u9ed8\u8ba4&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>A<\/td>\n<td>64<\/td>\n<td>\u5927\u4fe1\u53f7\u8f93\u5165<\/td>\n<\/tr>\n<tr>\n<td>B<\/td>\n<td>32<\/td>\n<td>\u5916\u90e8\u7535\u538b\u6d4b\u91cf<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<li>\n<p>\u8f93\u51fa\u6570\u636e\u901f\u7387 <span class=\"katex--display\"><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\"><\/p>\n<p>            f<\/p>\n<p>            s<\/p>\n<p>           &#061;<\/p>\n<p>             f<\/p>\n<p>              C<\/p>\n<p>              L<\/p>\n<p>              K<\/p>\n<p>              I<\/p>\n<p>              N<\/p>\n<p>             2<\/p>\n<p>             24<\/p>\n<p>           f_s &#061; \\\\frac{f_{CLKIN}}{2^{24}} <\/p>\n<p>       <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.8889em;vertical-align: -0.1944em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right: 0.1076em\">f<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.1514em\"><span class=\"\" style=\"top: -2.55em;margin-left: -0.1076em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mathnormal mtight\">s<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.15em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">&#061;<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 2.0574em;vertical-align: -0.686em\"><\/span><span class=\"mord\"><span class=\"mopen nulldelimiter\"><\/span><span class=\"mfrac\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 1.3714em\"><span class=\"\" style=\"top: -2.314em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\"><span class=\"mord\"><span class=\"mord\">2<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.7401em\"><span class=\"\" style=\"top: -2.989em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mtight\">24<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"\" style=\"top: -3.23em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"frac-line\" style=\"border-bottom-width: 0.04em\"><\/span><\/span><span class=\"\" style=\"top: -3.677em\"><span class=\"pstrut\" style=\"height: 3em\"><\/span><span class=\"mord\"><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right: 0.1076em\">f<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3283em\"><span class=\"\" style=\"top: -2.55em;margin-left: -0.1076em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.0715em\">C<\/span><span class=\"mord mathnormal mtight\">L<\/span><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.0715em\">K<\/span><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.0785em\">I<\/span><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.109em\">N<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.15em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.686em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><span class=\"mclose nulldelimiter\"><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<ul>\n<li>\u5178\u578b\u503c&#xff1a;80Hz&#xff08;<span class=\"katex--inline\"><span class=\"katex\"><span class=\"katex-mathml\">\n<p>            f<\/p>\n<p>             C<\/p>\n<p>             L<\/p>\n<p>             K<\/p>\n<p>             I<\/p>\n<p>             N<\/p>\n<p>           &#061;<\/p>\n<p>           5.17<\/p>\n<p>           M<\/p>\n<p>           H<\/p>\n<p>           z<\/p>\n<p>          f_{CLKIN}&#061;5.17MHz<\/p>\n<p>       <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.8889em;vertical-align: -0.1944em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right: 0.1076em\">f<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3283em\"><span class=\"\" style=\"top: -2.55em;margin-left: -0.1076em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.0715em\">C<\/span><span class=\"mord mathnormal mtight\">L<\/span><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.0715em\">K<\/span><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.0785em\">I<\/span><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.109em\">N<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.15em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">&#061;<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 0.6833em\"><\/span><span class=\"mord\">5.17<\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.109em\">M<\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.044em\">Hz<\/span><\/span><\/span><\/span><\/span>&#xff09;\u621610Hz&#xff08;\u964d\u566a\u6a21\u5f0f&#xff09;<\/li>\n<\/ul>\n<\/li>\n<hr \/>\n<h3>4\u3001\u5f15\u811a\u529f\u80fd<\/h3>\n<table>\n<tr>\u5f15\u811a\u53f7\u540d\u79f0\u529f\u80fd\u63cf\u8ff0<\/tr>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>VSUP<\/td>\n<td>\u6a21\u62df\u7535\u6e90&#xff08;2.6~5.5V&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>VBAT<\/td>\n<td>\u6865\u5f0f\u4f20\u611f\u5668\u4f9b\u7535<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>IN-<\/td>\n<td>\u901a\u9053A\u8d1f\u8f93\u5165<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>IN&#043;<\/td>\n<td>\u901a\u9053A\u6b63\u8f93\u5165<\/td>\n<\/tr>\n<tr>\n<td>11<\/td>\n<td>PD_SCK<\/td>\n<td>\u7535\u6e90\u63a7\u5236\/\u4e32\u884c\u65f6\u949f\u8f93\u5165<\/td>\n<\/tr>\n<tr>\n<td>12<\/td>\n<td>DOUT<\/td>\n<td>\u4e32\u884c\u6570\u636e\u8f93\u51fa<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h3>5\u3001\u5de5\u4f5c\u65f6\u5e8f<\/h3>\n<p>         ___     ___     ___     ___<br \/>\nPD_SCK _|   |___|   |___|   |___|   |__&#8230;<br \/>\n        _______ _______ _______ _______<br \/>\nDOUT  __|DATA24|DATA23|&#8230; |DATA0|_____<br \/>\n       \u2191T1     \u2191T2            \u2191T3<\/p>\n<ul>\n<li>T1&#xff1a;SCK\u4e0b\u964d\u6cbf\u540eDOUT\u51c6\u5907\u6570\u636e<\/li>\n<li>T2&#xff1a;SCK\u4e0a\u5347\u6cbf\u9501\u5b58\u6570\u636e<\/li>\n<li>T3&#xff1a;25\u4e2a\u8109\u51b2\u540e\u81ea\u52a8\u8fdb\u5165\u4f11\u7720\u6a21\u5f0f<\/li>\n<\/ul>\n<hr \/>\n<h3>6\u3001\u8bbe\u8ba1\u6ce8\u610f\u4e8b\u9879<\/h3>\n<li>\n<p>\u7535\u6e90\u566a\u58f0\u6291\u5236<\/p>\n<ul>\n<li>\u5728VSUP\u548cVBAT\u5f15\u811a\u589e\u52a010\u03bcF&#043;0.1\u03bcF\u7535\u5bb9<\/li>\n<li>\u6a21\u62df\u5730\u4e0e\u6570\u5b57\u5730\u5355\u70b9\u8fde\u63a5<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u6e29\u5ea6\u6f02\u79fb\u8865\u507f <span class=\"katex--display\"><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\"><\/p>\n<p>           \u0394<\/p>\n<p>            V<\/p>\n<p>             o<\/p>\n<p>             f<\/p>\n<p>             f<\/p>\n<p>             s<\/p>\n<p>             e<\/p>\n<p>             t<\/p>\n<p>           &#061;<\/p>\n<p>           \u03b1<\/p>\n<p>           \u22c5<\/p>\n<p>           (<\/p>\n<p>           T<\/p>\n<p>           \u2212<\/p>\n<p>            T<\/p>\n<p>            0<\/p>\n<p>           )<\/p>\n<p>           \\\\Delta V_{offset} &#061; \\\\alpha \\\\cdot (T &#8211; T_0) <\/p>\n<p>       <\/span><span class=\"katex-html\"><span class=\"base\"><span class=\"strut\" style=\"height: 0.9694em;vertical-align: -0.2861em\"><\/span><span class=\"mord\">\u0394<\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right: 0.2222em\">V<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3361em\"><span class=\"\" style=\"top: -2.55em;margin-left: -0.2222em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">o<\/span><span class=\"mord mathnormal mtight\" style=\"margin-right: 0.1076em\">ff<\/span><span class=\"mord mathnormal mtight\">se<\/span><span class=\"mord mathnormal mtight\">t<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.2861em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><span class=\"mrel\">&#061;<\/span><span class=\"mspace\" style=\"margin-right: 0.2778em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 0.4445em\"><\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.0037em\">\u03b1<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">\u22c5<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 1em;vertical-align: -0.25em\"><\/span><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\" style=\"margin-right: 0.1389em\">T<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><span class=\"mbin\">\u2212<\/span><span class=\"mspace\" style=\"margin-right: 0.2222em\"><\/span><\/span><span class=\"base\"><span class=\"strut\" style=\"height: 1em;vertical-align: -0.25em\"><\/span><span class=\"mord\"><span class=\"mord mathnormal\" style=\"margin-right: 0.1389em\">T<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.3011em\"><span class=\"\" style=\"top: -2.55em;margin-left: -0.1389em;margin-right: 0.05em\"><span class=\"pstrut\" style=\"height: 2.7em\"><\/span><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">0<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><span class=\"vlist-r\"><span class=\"vlist\" style=\"height: 0.15em\"><span class=\"\"><\/span><\/span><\/span><\/span><\/span><\/span><span class=\"mclose\">)<\/span><\/span><\/span><\/span><\/span><\/span> \u5efa\u8bae\u6bcf10\u2103\u91cd\u65b0\u6821\u51c6\u96f6\u70b9<\/p>\n<\/li>\n<li>\n<p>\u4fe1\u53f7\u8c03\u7406<\/p>\n<ul>\n<li>\u6ee1\u91cf\u7a0b\u8f93\u5165\u7535\u538b&#xff1a;\u00b120mV&#xff08;\u589e\u76ca128\u65f6&#xff09;<\/li>\n<li>\u8f93\u5165\u963b\u6297&#xff1a;&gt;1M\u03a9<\/li>\n<\/ul>\n<\/li>\n<hr \/>\n<h3>7\u3001\u5e38\u89c1\u6545\u969c\u6392\u67e5<\/h3>\n<table>\n<tr>\u73b0\u8c61\u53ef\u80fd\u539f\u56e0\u89e3\u51b3\u65b9\u6848<\/tr>\n<tbody>\n<tr>\n<td>\u8bfb\u6570\u8df3\u53d8<\/td>\n<td>\u7535\u6e90\u7eb9\u6ce2\u8fc7\u5927<\/td>\n<td>\u589e\u52a0\u7535\u6e90\u6ee4\u6ce2\u7535\u5bb9<\/td>\n<\/tr>\n<tr>\n<td>\u8f93\u51fa\u5168\u96f6<\/td>\n<td>PD_SCK\u4fe1\u53f7\u5f02\u5e38<\/td>\n<td>\u68c0\u67e5MCU\u65f6\u949f\u5f15\u811a\u914d\u7f6e<\/td>\n<\/tr>\n<tr>\n<td>\u6570\u636e\u4e0d\u7a33\u5b9a<\/td>\n<td>\u4f20\u611f\u5668\u6fc0\u52b1\u4e0d\u8db3<\/td>\n<td>\u68c0\u67e5VBAT\u7535\u538b&#xff08;\u22653.3V&#xff09;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u6ce8&#xff1a;\u5b8c\u6574\u6280\u672f\u53c2\u6570\u8bf7\u53c2\u8003\u5b98\u65b9\u6570\u636e\u624b\u518c&#xff08;HX711 Rev 1.5&#xff09;\u3002\u5b9e\u9645\u8bbe\u8ba1\u4e2d\u5efa\u8bae\u9884\u7559\u589e\u76ca\u9009\u62e9\u8df3\u7ebf&#xff0c;\u4ee5\u9002\u5e94\u4e0d\u540c\u7075\u654f\u5ea6\u4f20\u611f\u5668\u3002<\/p>\n<h2>\u4e8c\u3001\u539f\u7406\u56fe\u5206\u4eab<\/h2>\n<p>\u677f\u5b50\u753b\u4e864\u8def\u6bcf\u4e00\u8def\u7535\u6e90\u5206\u5f00&#xff0c;\u4e0b\u56fe\u53ea\u662f\u5176\u4e2d\u4e00\u8def\u3002 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/08\/20250810123445-689891e53437e.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h2>\u4e09\u3001\u9a71\u52a8\u4ee3\u7801<\/h2>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;stm32f10x.h&#034;<\/span>                  <span class=\"token comment\">\/\/ Device header<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;HX711.h&#034;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&#034;Delay.h&#034;<\/span><\/span><\/p>\n<p><span class=\"token keyword\">float<\/span>BiaoDing<span class=\"token operator\">&#061;<\/span><span class=\"token number\">384.7<\/span><span class=\"token punctuation\">;<\/span>       <span class=\"token comment\">\/\/\u6807\u5b9a\u7cfb\u6570,\u6839\u636e\u81ea\u5df1\u7684\u4f20\u611f\u5668\u8c03\u8282<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">HX711_GPIO_Init<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">RCC_APB2PeriphClockCmd<\/span><span class=\"token punctuation\">(<\/span>RCC_APB2Periph_GPIOA<span class=\"token punctuation\">,<\/span> ENABLE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>GPIO_InitTypeDef GPIO_InitStructure<span class=\"token punctuation\">;<\/span><br \/>\nGPIO_InitStructure<span class=\"token punctuation\">.<\/span>GPIO_Mode <span class=\"token operator\">&#061;<\/span> GPIO_Mode_Out_PP<span class=\"token punctuation\">;<\/span>      <span class=\"token comment\">\/\/\u65f6\u949f\u7ebf\u63a8\u633d\u8f93\u51fa<\/span><br \/>\nGPIO_InitStructure<span class=\"token punctuation\">.<\/span>GPIO_Pin <span class=\"token operator\">&#061;<\/span> GPIO_Pin_1<span class=\"token punctuation\">;<\/span><br \/>\nGPIO_InitStructure<span class=\"token punctuation\">.<\/span>GPIO_Speed <span class=\"token operator\">&#061;<\/span> GPIO_Speed_50MHz<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">GPIO_Init<\/span><span class=\"token punctuation\">(<\/span>GPIOA<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>GPIO_InitStructure<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>GPIO_InitStructure<span class=\"token punctuation\">.<\/span>GPIO_Mode <span class=\"token operator\">&#061;<\/span> GPIO_Mode_IN_FLOATING<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/\u6570\u636e\u7ebf\u6d6e\u7a7a\u8f93\u5165     <\/span><br \/>\nGPIO_InitStructure<span class=\"token punctuation\">.<\/span>GPIO_Pin <span class=\"token operator\">&#061;<\/span> GPIO_Pin_2<span class=\"token punctuation\">;<\/span><br \/>\nGPIO_InitStructure<span class=\"token punctuation\">.<\/span>GPIO_Speed <span class=\"token operator\">&#061;<\/span> GPIO_Speed_50MHz<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">GPIO_Init<\/span><span class=\"token punctuation\">(<\/span>GPIOA<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>GPIO_InitStructure<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">HX711_W_PD_SCK<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint8_t<\/span> BitValue<span class=\"token punctuation\">)<\/span>                  <span class=\"token comment\">\/\/\u5199\u65f6\u949f\u7ebf<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">GPIO_WriteBit<\/span><span class=\"token punctuation\">(<\/span>GPIOA<span class=\"token punctuation\">,<\/span> GPIO_Pin_1<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span>BitAction<span class=\"token punctuation\">)<\/span>BitValue<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">HX711_W_DOUT<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint8_t<\/span> BitValue<span class=\"token punctuation\">)<\/span>                    <span class=\"token comment\">\/\/\u5199\u6570\u636e\u7ebf&#xff0c;\u5f00\u59cb\u65f6&#xff0c;\u9700\u8981\u62c9\u9ad8DOUT\u7535\u5e73<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">RCC_APB2PeriphClockCmd<\/span><span class=\"token punctuation\">(<\/span>RCC_APB2Periph_GPIOA<span class=\"token punctuation\">,<\/span> ENABLE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>GPIO_InitTypeDef GPIO_InitStructure<span class=\"token punctuation\">;<\/span><br \/>\nGPIO_InitStructure<span class=\"token punctuation\">.<\/span>GPIO_Mode <span class=\"token operator\">&#061;<\/span> GPIO_Mode_Out_PP<span class=\"token punctuation\">;<\/span><br \/>\nGPIO_InitStructure<span class=\"token punctuation\">.<\/span>GPIO_Pin <span class=\"token operator\">&#061;<\/span> GPIO_Pin_2<span class=\"token punctuation\">;<\/span><br \/>\nGPIO_InitStructure<span class=\"token punctuation\">.<\/span>GPIO_Speed <span class=\"token operator\">&#061;<\/span> GPIO_Speed_50MHz<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">GPIO_Init<\/span><span class=\"token punctuation\">(<\/span>GPIOA<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>GPIO_InitStructure<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token function\">GPIO_WriteBit<\/span><span class=\"token punctuation\">(<\/span>GPIOA<span class=\"token punctuation\">,<\/span> GPIO_Pin_2<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span>BitAction<span class=\"token punctuation\">)<\/span>BitValue<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token class-name\">uint8_t<\/span> <span class=\"token function\">HX711_R_DOUT<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span>                             <span class=\"token comment\">\/\/\u8bfb\u6570\u636e<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">RCC_APB2PeriphClockCmd<\/span><span class=\"token punctuation\">(<\/span>RCC_APB2Periph_GPIOA<span class=\"token punctuation\">,<\/span> ENABLE<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>GPIO_InitTypeDef GPIO_InitStructure<span class=\"token punctuation\">;<\/span><br \/>\nGPIO_InitStructure<span class=\"token punctuation\">.<\/span>GPIO_Mode <span class=\"token operator\">&#061;<\/span> GPIO_Mode_IN_FLOATING<span class=\"token punctuation\">;<\/span><br \/>\nGPIO_InitStructure<span class=\"token punctuation\">.<\/span>GPIO_Pin <span class=\"token operator\">&#061;<\/span> GPIO_Pin_2<span class=\"token punctuation\">;<\/span><br \/>\nGPIO_InitStructure<span class=\"token punctuation\">.<\/span>GPIO_Speed <span class=\"token operator\">&#061;<\/span> GPIO_Speed_50MHz<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">GPIO_Init<\/span><span class=\"token punctuation\">(<\/span>GPIOA<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>GPIO_InitStructure<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">return<\/span> <span class=\"token function\">GPIO_ReadInputDataBit<\/span><span class=\"token punctuation\">(<\/span>GPIOA<span class=\"token punctuation\">,<\/span> GPIO_Pin_2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">HX711_Reset<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span>                                 <span class=\"token comment\">\/\/ \u4f20\u611f\u5668\u590d\u4f4d&#xff0c;\u53bb\u76ae<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">HX711_W_PD_SCK<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>                                   <span class=\"token comment\">\/\/\u62c9\u9ad8&#xff0c;\u5ef6\u65f660us<\/span><br \/>\n<span class=\"token function\">Delay_us<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">60<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token class-name\">uint32_t<\/span> <span class=\"token function\">HX711_ReadData<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span>                          <span class=\"token comment\">\/\/\u8bfb\u6570\u636e<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token class-name\">uint8_t<\/span> i<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token class-name\">uint32_t<\/span> value <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span>    <span class=\"token comment\">\/\/\u63a5\u6536HX711\u91c7\u96c6\u7684AD\u503c<\/span><\/p>\n<p><span class=\"token function\">HX711_W_DOUT<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/\u521d\u59cbDOUT\u4e3a\u9ad8\u7535\u5e73<\/span><br \/>\n<span class=\"token function\">HX711_W_PD_SCK<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>   <span class=\"token comment\">\/\/\u521d\u59cbPD_SCK\u4e3a\u4f4e\u7535\u5e73<\/span><br \/>\n<span class=\"token function\">Delay_us<\/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 function\">HX711_R_DOUT<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>                   <span class=\"token comment\">\/\/DOUT\u8f6c\u6362\u4e3a\u8f93\u5165<\/span><\/p>\n<p><span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">HX711_R_DOUT<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>           <span class=\"token comment\">\/\/\u7b49\u5f85DOUT\u5f15\u811a\u53d8\u4e3a\u9ad8\u7535\u5e73<\/span><br \/>\n<span class=\"token function\">Delay_us<\/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 keyword\">for<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token operator\">&#061;<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span>i<span class=\"token operator\">&lt;<\/span><span class=\"token number\">24<\/span><span class=\"token punctuation\">;<\/span>i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span>                 <span class=\"token comment\">\/\/\u6309\u7167HX711\u65f6\u5e8f\u63a5\u6536\u6570\u636e<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">HX711_W_PD_SCK<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>              <span class=\"token comment\">\/\/ PD_SCK\u7f6e\u9ad8&#xff0c;\u53d1\u9001\u8109\u51b2 <\/span><br \/>\nvalue <span class=\"token operator\">&#061;<\/span> value <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span>              <span class=\"token comment\">\/\/\u4e0b\u964d\u6cbf\u6765\u65f6\u53d8\u91cf\u5de6\u79fb\u4e00\u4f4d&#xff0c;\u53f3\u4fa7\u8865\u96f6&#xff0c;<\/span><br \/>\n<span class=\"token function\">Delay_us<\/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 function\">HX711_W_PD_SCK<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>               <span class=\"token comment\">\/\/ PD_SCK\u7f6e\u4f4e<\/span><br \/>\n<span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">HX711_R_DOUT<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>               <span class=\"token comment\">\/\/\u8bfb\u53d6\u4e00\u4f4d\u6570\u636e&#xff0c;\u5982\u679c\u9ad8\u7535\u5e73&#xff0c;\u52a0\u4e00&#xff0c;\u4f4e\u7535\u5e73\u4e0d\u53d8\u3002<\/span><br \/>\nvalue<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">Delay_us<\/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 function\">HX711_W_PD_SCK<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>               <span class=\"token comment\">\/\/\u6700\u540e\u4e00\u4e2a\u8109\u51b2&#xff0c;\u589e\u76ca\u4e3a128<\/span><br \/>\nvalue <span class=\"token operator\">&#061;<\/span> value<span class=\"token operator\">^<\/span><span class=\"token number\">0x800000<\/span><span class=\"token punctuation\">;<\/span>          <span class=\"token comment\">\/\/\u7b2c25\u4e2a\u8109\u51b2\u8f6c\u6362\u6570\u636e&#xff0c;24\u4f4dAD\u8f6c\u6362&#xff0c;\u6700\u9ad8\u4f4d\u4e3a\u7b26\u53f7\u4f4d&#xff0c;\u5176\u4f59\u4e3a\u6709\u6548\u4f4d<\/span><br \/>\n<span class=\"token function\">Delay_us<\/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 function\">HX711_W_PD_SCK<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">Delay_us<\/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 keyword\">return<\/span> value<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token class-name\">uint32_t<\/span> <span class=\"token function\">Get_Pi<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span>                                  <span class=\"token comment\">\/\/\u76ae\u91cd\u51fd\u6570<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token class-name\">uint8_t<\/span> MEDIAN_LEN<span class=\"token operator\">&#061;<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">,<\/span>MEDIAN<span class=\"token operator\">&#061;<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">;<\/span>              <span class=\"token comment\">\/\/\u4e2d\u503c\u6ee4\u6ce2\u53c2\u6570&#xff0c;\u5192\u6ce1\u6392\u5e8f\u6cd5<\/span><br \/>\n<span class=\"token class-name\">uint32_t<\/span>   buffer<span class=\"token punctuation\">[<\/span>MEDIAN_LEN<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>                <span class=\"token comment\">\/\/\u50a8\u5b58\u6570\u7ec4<\/span><br \/>\n<span class=\"token class-name\">uint32_t<\/span> HX711_dat<span class=\"token punctuation\">,<\/span>pi_weight<span class=\"token punctuation\">,<\/span>num<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token class-name\">uint8_t<\/span> i<span class=\"token punctuation\">,<\/span>medleng <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token operator\">&#061;<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span>i<span class=\"token operator\">&lt;<\/span>MEDIAN_LEN<span class=\"token punctuation\">;<\/span>i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\nHX711_dat<span class=\"token operator\">&#061;<\/span><span class=\"token function\">HX711_ReadData<\/span><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>medleng <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span>                           <span class=\"token comment\">\/\/\u7b2c1\u4e2a\u5143\u7d20,\u76f4\u63a5\u653e\u5165,\u4e0d\u9700\u8981\u6392\u5e8f<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\nbuffer<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> HX711_dat<span class=\"token punctuation\">;<\/span><br \/>\nmedleng <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">else<\/span>                                       <span class=\"token comment\">\/\/\u4e2d\u503c\u6ee4\u6ce2&#xff0c;\u53d6\u4e2d\u95f4\u503c&#xff0c;\u5192\u6ce1\u6392\u5e8f\u6cd5<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span>i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> medleng<span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&#043;&#043;<\/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> buffer<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&gt;<\/span> HX711_dat<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\nnum <span class=\"token operator\">&#061;<\/span> HX711_dat<span class=\"token punctuation\">;<\/span> HX711_dat <span class=\"token operator\">&#061;<\/span> buffer<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span> buffer<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> num<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\nbuffer<span class=\"token punctuation\">[<\/span>medleng<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> HX711_dat<span class=\"token punctuation\">;<\/span><br \/>\nmedleng<span class=\"token operator\">&#043;&#043;<\/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>medleng <span class=\"token operator\">&gt;&#061;<\/span> MEDIAN_LEN<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\nHX711_dat <span class=\"token operator\">&#061;<\/span> buffer<span class=\"token punctuation\">[<\/span>MEDIAN<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>            <span class=\"token comment\">\/\/\u53d6\u6392\u5e8f\u597d\u7684\u4e2d\u95f4\u503c&#xff0c;<\/span><br \/>\nmedleng <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\npi_weight<span class=\"token operator\">&#061;<\/span>HX711_dat<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">return<\/span> pi_weight<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token class-name\">uint32_t<\/span> <span class=\"token function\">Get_Weight<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint32_t<\/span> pi_weight<span class=\"token punctuation\">)<\/span>               <span class=\"token comment\">\/\/\u79f0\u91cd\u51fd\u6570<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token class-name\">uint32_t<\/span> get_weight<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token class-name\">uint32_t<\/span> weight<span class=\"token punctuation\">;<\/span><\/p>\n<p>get_weight<span class=\"token operator\">&#061;<\/span><span class=\"token function\">HX711_ReadData<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>            <span class=\"token comment\">\/\/HX711\u6570\u636e\u91c7\u96c6\u51fd\u6570<\/span><br \/>\n<span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>get_weight<span class=\"token operator\">&gt;<\/span>pi_weight<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\nget_weight<span class=\"token operator\">&#061;<\/span><span class=\"token function\">HX711_ReadData<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>                  <span class=\"token comment\">\/\/\u91cd\u65b0\u91c7\u96c6HX711\u6570\u636e    <\/span><br \/>\nweight<span class=\"token operator\">&#061;<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">uint32_t<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">float<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">(<\/span>get_weight<span class=\"token operator\">&#8211;<\/span>pi_weight<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">\/<\/span>BiaoDing<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token 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