<div class="document"> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">* 1、项目功能介绍</h3> <hr class="horizontal-splitline normal-bold-2"><p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">基于N32G430C8L7+INA199制作的USB电流表，精度1%，可以查看USB工作时候的电流并预留温压接口。输入电压4.75V-40V。</p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">*2、项目属性</h3> <hr class="horizontal-splitline normal-bold-2"><p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">参考自国民科技训练营官方案例，检测USB接口实时电流。</p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">* 3、开源协议</h3> <hr class="horizontal-splitline normal-bold-2"><p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">GPL 3.0</p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">*4、硬件部分</h3> <hr class="horizontal-splitline normal-bold-2"><h5 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><span style="background-color:#ffffff;"><strong><span style="color:#95a5a6;font-size:14px;background-color:#ffffff;">基于国民N32G430C8L7主控芯片，ADC采样INA199输出计算电流，ADC采样分压电阻之间的电压计算电压值，电压、电流通过SPI输出到0.91寸OLED显示，实现实时监测电压电流。</span></strong></span></h5> <h5 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><span style="background-color:#ffffff;"><strong><span style="color:#95a5a6;font-size:14px;background-color:#ffffff;">原理图及PCB由lceda专业版全在线版绘制。</span></strong></span></h5> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">*5、软件部分</h3> <hr class="horizontal-splitline normal-bold-2"><p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">代码部分由keil5编写，代码参考了官方案例例程。</p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">*6、大赛LOGO验证</h3> <hr class="horizontal-splitline normal-bold-2"><p style="line-height:1.8;"><img src="//image.lceda.cn/pullimage/vUb0FaLx0FeRcGvaxXcvVQCDKLvLAPn2KodYkvaT.png" alt="vUb0FaLx0FeRcGvaxXcvVQCDKLvLAPn2KodYkvaT.png"></p> <p style="line-height:1.8;"><img src="//image.lceda.cn/pullimage/KwI3Jl9cUZ1w5gRVmLHVJ1SXq9LzKPalnhHY6Akr.png" alt="KwI3Jl9cUZ1w5gRVmLHVJ1SXq9LzKPalnhHY6Akr.png"></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">* 7、实物验证</h3> <hr class="horizontal-splitline normal-bold-2"><p style="line-height:1.8;"><img src="//image.lceda.cn/pullimage/5RV3TrHPN16tMT1AGQdMyuQF0yYeDGblfz0lzlFB.png" alt="5RV3TrHPN16tMT1AGQdMyuQF0yYeDGblfz0lzlFB.png"></p> <p style="line-height:1.8;"><img src="//image.lceda.cn/pullimage/7eXvTzJ9C1tS6ZnH9DMxMiIrXRcrOmXWM5FCLfpF.png" alt="7eXvTzJ9C1tS6ZnH9DMxMiIrXRcrOmXWM5FCLfpF.png"></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> </div>