Octopus PM2.5 module(EF04090)
Introduction
PM2.5 Electronic brick is one of the modules in 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 easily to operate.
Products Link
ELECFREAKS Octopus PM2.5 Module
Characteristic
It is compatible to both 3V/5V devices. It is compatible to micro:bit or Arduino products. It is equipped with standard 3 wires GVS interface. It is of high consistency and accuracy with a real time response, the 0.3 μm diameter particle can be recognized. With PWM output and serial port supported.
Parameter
| Item | Parameter |
|---|---|
| Name | PM2.5 Electronic brick |
| SKU | EF04090 |
| Version | V1.2 |
| Operating Voltage | DC3~5V |
| Working Current | <120mA |
| Sleep Current | <10mA |
| Operating Temperature | -10~50℃ |
| Detective Gas | PM2.5 |
| Dimension | 50.00mm X 50.00mm |
| Net Weight | 46.30g |
Outlook and Dimension for Installment
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 3.3V PWM signal.
4PIN Serial Output Interfaces
The output interfaces are used for 3.3V serial signal.
Quick Start
Hardware Connection
Connect PM2.5 electronic brick module to P1 port on micro:bit with a micro:bit expansion board.
Software Programming
Step 1 Start with Makecode
Open the on-line programming page for makecode.
Step 2 Add Package
Search the key word 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:
Result
The value of PM2.5 is scrolling displaying on the 5x5 screen with μg/m3 as a unit.