Octopus PM2.5 Module

DESCRIPTION

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.

CHARACTERISTIC

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.

DIMENSION

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.

QUICK START

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

PROGRAMMING

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:

RESULTS

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

PARAMETER

PACKAGE LIST