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Portable Digital GP2Y1051AU0F PM2.5 Compact Optical Dust Sensor Air Quality Tester Meter Indicator

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The DEMO evaluation board support model is GP2Y1051AU0F. The DEMO evaluation board has been written to MCU and no other programming is required. After USB power on, it directly display. The power supply is 5V voltage. Connect the USB cable to the mobile power or the USB port to power on. Some computer USB power instability shows may be a little biased, but it does not affect the use.

Display Value:
1>. The display value is 0-50, the air quality is excellent.
2>. The display value is 50-100, the air quality is good.
3>. The display value is 100-130, the air quality is light pollution.
4>. The display value is 130-170, the air quality is moderate pollution.
5>. The display value is 180-250, the air quality is heavy pollution.
6>. The display value is greater than 250, the air quality is serious pollution.

Display Interface:
1>. P 50 for PM2.5
Err1: PM2.5 sensor is not connected.
2>. C 20 represents that temperature is 20 Celsius.
Err2: Temperature sensor is not connected or has other faults.
3>. On-board 2 LED, they flicker every 2 seconds, and won’t be synchronized flickering.
4>. The board button is currently not functional.Second development for developers.

There is already a PM2.5 detection program and temperature display inside the PCB you receive.
PM2.5 displays 8 seconds, temperature displays 1 second, polling display.
PM2.5 levels show up from 0 (the worse the air is, the faster the number rises, and vice versa) until the final number is stable.

Component Description:
1>. Digital tube display [4 red]
2>. 4 independent buttons.
3>. A temperature probe J1.
4>. A PM2.5 sensor interface.
5>. A serial port 2.54 row pinhole [J2]- standby.
6>. A download program port - on the back, convenient for users to program.
7>. Indicator light 2 can be used for the setting of PM2.5 and temperature, and can also be used for other purposes.
8>.IO port output 2 -USB side - can be used for PM2.5 or temperature detection for IO port output signal.
9>. Single chip model: STM8S103F3P6.
10>. LED indicator light 2 for instructions.

Serial Port Output Parameters:
1>. Baud rate: 2400 bit/s:
2>. A byte is sent for each 10ms, with a total of 7 bytes, in which the check bit =Vout(H)+Vout(L)+Vref(H)+Vref(L):

3>. Data transmission format:

Start bit Vout(H) Vout(L) Vref(H) Vref(L) Check bit End bit
Oxaa Such as: 0x01 Such as: 0x3a Such as: 0x00 Such as: 0x7a Such as: 0xd0 Oxff

4>. Data processing:
The received data is calculated according to the formula, and the value of Vout is obtained: Vout=(Vout (H) *256+Vout(L))/1024*5.
For example:
Vout(H)=0x01, converted to decimal into 1:
Vout(L)=0x3a, converted to decimal into 58;
Vout = (58) 1 * 256 + / 1024 * 5 = 1. 533V.

External Circuit:


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