HW210 Laser Digital Dust Sensor

Features:

Digital output dust concentration signal output unit μg/m3;

Built-in microprocessor MCU optimized precise algorithm; standard serial port output;

Digital PWM pulse width output and standard serial port (USART);

Built-in software self-calibration function, simple debugging, high efficiency and accuracy, good consistency;

Light particle counting principle, digital output, simple application, universal interface;

high sensitivity can detect particles with a diameter of 1μm or more;

Compact structure, light weight (W48.1xH17XD32.3 mm), embedded installation;

Using active air flow structure, real-time data characteristics;

Dual air inlet structure, suitable for more design, convenient installation;

Product principle overview:

SY210 is a laser optical refractometer that detects the number of dust particles in the air and has an embedded MCU

Digital dust sensor for digital detection of real-time environment dust concentration by outputting directly from the operating system and outputting data

Unit μg/m3. Intersecting the laser light source with the optical axis of an image sensor when dusty airflow

Reflected light is generated through the intersection area. The image sensor detects dust reflected laser light, according to precision

High-speed op amp amplification and internal modulation circuit and MCU count and algorithm, operation system particle number and weight conversion,

Direct output of digital signals of dust concentration, this sensor can sensitively detect particles with a diameter of 1.0μm or more,

Repeatedly optimized and precise data processing through the built-in microprocessor MCU has greatly improved the accuracy.

Directly output PM2.5 concentration signal in the current environment, unit μg/m3

Detection and application areas:

Air purifier, air refresher

Air dust detection, indoor air dust quality detection;

Home appliances, air conditioners, HVAC, new fans,

Ventilation system, smoke alarm or other dust monitoring equipment detection components

As non-metering instrument detection components (Note: This product does not require high reliability, safety, precision

Equipment and measuring instrument components);

Electrical parameters:

 Specifications

Sy210 dust sensor output definition: n

n

Connector pin definition

 Note: Connector specifications: A1500WF-06A, spacing 1.5mm6PIN

Data reading method (communication protocol)

A, PWM communication interface:

The PWM interface outputs a periodic pulse signal with a period of 1S, low-level duration of each period

It is proportional to the PM2.5 concentration value detected by the current module. The low level 1ms = 1ug/m3*K;

Read mode: Waiting for counting at high level, counting at low level (no 1mS plus one) when high

When the level is reached, the counting is stopped. This count value is both the PM value and the high level continues to wait and repeat the measurement.

The waveform is as shown in the figure below: Reference graph (specific actual maximum value, see different product specifications)