- Reduced price
Sensor of dust allows monitoring the air quality, measures the ratio of PM2.5. Equipped with a sensor that could detect particles with diameter more than 0.3 micrometers, such as cigarette smoke. The system is supplied with the voltage from 4.5 V to 5.5 V, interface UART.
The sensor has eight outputs, their description is in a table.
|Pin 1||VCC - power supply 5 V.|
|Pin 2||The weight of the device.|
|Pin 3||Pin SET|
|Pin 4||RXD / I2C_SCL - receiver, UART / clock line of the I2C bus. Works with a voltage of 3.3 V.|
|Pin 5||TXD / I2C_SDL - transmitter UART / clock line of the I2C bus. Works with a voltage of 3.3 V.|
|Pin 6||Reset. Works with a voltage of 3.3 V.|
Selection between UART and I2C. Low state is the choice of UART, high state - I2C.By default, in the low state.
This model does not support I2C bus.
- Supply voltage: 4.5 V to 5.5 V
- Consumption current: under 100 mA
- 50% for 0.3 µm
- 98% for 0.5 µm and larger
- Response time: less than 10 seconds.
- Operating temperature: -20°C to 50°C
- Tile sizes: 50 x 38 x 21 mm