pmtoy-hardware-pcb

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README

pmtoy-hardware-pcb

空气质量检测模块,主控 STM32F070F6 ,主传感器采用攀藤科技 PMS7003 ,带有 1.4寸 TFT显示 和 USB传输

硬件部分

  • 主控 STM32F070F6
  • UART, PMS7003 传感器
  • SPI, 1.4寸 TFT 显示
  • 开关,3.3V 电源转换
  • 按钮,芯片RESET
  • 按钮,编程
  • LED, 编程
  • USB, 供电 + 通讯
  • SWD 接口

已知问题

  • 传感器模块接口插孔太小,导致接口无法完整插入,焊锡连接的情况下,不影响使用。
  • 接上传感器模块后,3.3V 供电无法开关切换,原因: 传感模块 5V 电源没有考虑开关
  • USB DP 1.5k 上拉电阻没有必要,芯片内部已经实现了,故独立使用LED功能.

原理图

PDF Version

实物照片

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