ELECFREAKS Octopus PM2.5 Module

SKU: EF04090
$29.90 USD
In stock and ready for shipping

Frequently Bought Together

We Accept


PM2.5 Electronic brick is one of the modules in the Octopus series to test the PM2.5 concentration. Based on ZH03 laser dust sensors, it can test the dust particle in the air with high consistency and stability. The PWM output and serial port design also make it easy to operate.


It is compatible with both 3V/5V devices.
It is compatible with micro:bit or Arduino products.
It is equipped with a standard 3-wires GVS interface.
It is of high consistency and accuracy with real-time response, the 0.3 μm diameter particle can be recognized.
With PWM output and serial port supported.


Diagram for Pins Connector

Introduction to Main Function Modules

ZH03B Sensor

ZH03B sensor is used to test the PM2.5 concentration in the air.

3PIN Standard GVS Electronic Brick Interfaces

With standard 3PIN electronic brick interfaces, "S" is the output pin for the 3.3V PWM signal.

4PIN Serial Output Interfaces

The output interfaces are used for the 3.3V serial signals.


Hardware Connection
Connect PM2.5 electronic brick module to P1 the port on micro:bit with a micro:bit expansion board.


Step 1 Start with Makscode
Open the online programming page for makecode.
Step 2 Add Package
Search the keyword with "iot", and add the software package called "iot-environment-kit".

Step 3 Programming

Step 4 Download
The complete program is below: https://makecode.microbit.org/_4TvKWEihahzh
You can also download it directly from below:


The value of PM2.5 is scrolling displaying on the 5x5 screen with μg/m3 as a unit.


Items Parameter
Name PM2.5 Electronic brick
Version V1.2
SKU EF04090
Operation Voltage DC 3-5V
Working Current <120 mA
Sleep Current <10 mA
Operating Temperature -10~50°C
Detective Gas PM2.5
Dimension 50.00mm x 50.00mm
Net Weight 46.30g


Items Quantity
Octopus PM2.5 module 1
3-pin F/F jumper wire 1

Recommended for You