Product description: Dust / air purity sensor PM2.5 - 5V UART - PlanTower PMS9103M
Dust sensor module allows to determine the degree of air purity. It measures the concentration of PM2.5 particles. It can detect particles with a diameter of up to 0.3 μm, which include cigarette smoke and vehicle exhaust. The PMS9103M requires a 5 V stabilised voltage supply. The sensor communicates with the microcontroller via the UART interface, which operates at 3,3 V logical level.
PlanTower air purity sensor.
Connection of the module
The sensor has 8 outputs, 6 of which have active functions. A detailed description of the individual pins can be found in the table below:
| Pin | Description |
|---|---|
| Pin 1 (VCC) | 5 V power supply. |
| Pin 2 (GND) | The weight of the device. |
| Pin 3 (SET) | Change to normal / sleep mode. |
| Pin 4 (RDX) | Serial receiver pin / TTL level at 3.3 V. |
| Pin 5 (TXD) | Serial transmission pin / TTL level at 3.3 V. |
| Pin 6 (RESET) |
Reset. Works at 3.3 volts. |
| Pin 7 (NC) |
(Inactive) |
| Pin 8 (NC) |
(Inactive) |
|
Voltage on the signal lines RX, TX, RESET, SET must not exceed 3.3 V. When controlling the module at higher voltage, we recommend using a voltage converter. |
Technical specification of the sensor
- Manufacturer: PlanTower
- Supply voltage: 3.3 V to 5 V
- Current consumption: up to 100 mA
- Range of measurements:
- from 0.3 µm to 1.0 µm
- 1.0 µm to 2.5 µm
- 2.5 µm to 10 µm
- Sensitivity:
- 50% for 0.3 µm
- 98% for 0.5 µm and above
- Operating temperature: -5°C to 60°C
- Response time: less than 10 seconds
-
Data interface level: 3.3 V
-
Connector: 8 pin 1.25 mm
- Dimensions: 48 x 40 x 12 mm
Set contents
- PMS9103M sensor
- Cable with JST connector
Useful links |
