摘要:
Testing a sensor from here.http://www.seeedstudio.com/wiki/Grove_-_Dust_SensorIt's a dust sensor. Everyone can buy it anywhere also. It's a cheep one actually.We can find its document here:http://www.seeedstudio.com/wiki/images/4/4c/Grove_-_Dust_sensor.pdfIt looks good.It's more cheaper 阅读全文