1. 1 Leeo Project 实现基本功能 微粒 / 灰尘 悬浮微粒 环境感应器 : 监视室内空气质量 环境感应器 : 监视室内空气质量 空气中化 学物检测 室内温度 湿度监控 烟雾 报警 WIFI 连接至 iOS/Android Devices

2. 2 Hardware Configuration ADC BOARD MIDDLE BOARD AC/DC Convertor 1mm xx Pin Header 1mm xx Receptacle Power DC-DC(1.8V) Power DC-DC(3.3V) WIFI/BT Jorjin WG7311-0A Molex 74950 Quanta Antenna 1mm xx Pin Header 1mm xx Pin Receptacle External RC Termination VTT TI TPSS1200 DDR3 Micron MT41J128M16JT Flash eMMC Micro-4GB DDR Interface eMMC SPI I2C USB I2C(Master) MMC0 UART0 Microprocessor TI AM3352ZCZ60-600MHZ PMIC TI TPS65910A3 USB Connector Connector Debug Board 1mm xx Pin Header 1mm xx Pin Receptacle I2C FINGER SENSOR Imaging ADBS-A350 PIR Excelitas PYQ5848-3595 LIGHT SENSOR AMS TSL25721FN CODEC TI MICROPHONE CUI HUMIDITY TEMP Session SHT20 Filter LM809 Factory default switch KSS221G VOC Applied sensor DUST Sharp CO Sensor ANALOG GPIO I2C (Slave) GPIO Microcontroller TI MSP430G25531RHB32T  Front Board (前板) VOC Sensor DUST Sensor C O Sensor Finger Sensor Light Sensor Humidity/Temp  Middle Board (中板) CPU DDR3 eMMC SPI USB PMIC  Bock Board (后板) AC-DC Convertor DC-DC 1.8V Convertor DC-DC 3.3V Convertor WIFI /BT

3. 3 Assembly Process 74mmx72mmx1m52mmx42mmx1mm 28mmx52mmx1mm 32mmx52mmx1mm 前板尺寸中板尺寸后板尺寸 87 mmx87mmx46mm

4. 4 3D Sub-assembly Support Rubbers Board to Board Connector Micro USB Fix with two screws PCB Middle ASSY