【ART-Pi】Environmental intelligent detection system +427978A

1. Sensor selection

GP2Y1010AUOF is an optical dust concentration detection sensor developed by Japan Sharp Company. The infrared light-emitting tube and phototransistor distributed in pairs of feet inside this sensor work using the photosensitive principle. Used to detect particularly fine particles, such as cigarette particles and fine dust. The particle concentration is judged by the height of the output pulse. It can be used to detect the concentration of PM2.5 in the environment to remind users to use scientific and effective methods to reduce formaldehyde pollution, thereby making the air quality of the environment fresher and further improving users' health awareness and pursuit of quality of life. The temperature and humidity sensor used in this expansion board is DHT11. Single bus data protocol communication method, the communication circuit is simple and only needs to connect a data line to a 4.7K pull-up resistor. It can also be directly connected to the processor without an external pull-up resistor, and the processor IO port is set to the pull-up state. . Highly integrated. Low power consumption, maximum operating current and average current is 0.5mA

2. Product highlights

• Supports using WeChat applet to scan the QR code on the device to enter
• Support WeChat applet to view dynamic environmental PM2.5 concentration and temperature and humidity data in real time
• Support setting the environmental PM2.5 concentration threshold through the WeChat applet, and whether to turn on the sound and light alarm
• Allows users to set parameters (threshold setting, sound and light alarm, data upload)
• Supports real-time viewing of device status (working status, network status)