ShenzhenYijiajie Electronic Co., Ltd.
| Operating Humidity | 10‑90% RH |
| Supply Ability | 1500 |
| SPI Logic Leve | 3.3V TTL, 5V signal tolerance |
| Power Supply Source | Powered by PC USB port |
| Host/Slave | SPI Host Mode |
| Packaging Details | Box pack |
| Operating Temperature | -20℃ ~ +55℃ |
| Payment Terms | L/C, D/A, D/P, T/T, Western Union |
| SPI Signal Pins | SCK, MOSI, MISO, CS, GND |
| Delivery Time | 5-8 days |
| USB Interface | USB 2.0 Full-Speed |
| Product Name | USB‑SPI Converter compatible with OPC-N3 |
| Model Number | USB‑SPI |
| Place of Origin | Britain |
| Brand Name | YJJ |
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Product Specification
| Operating Humidity | 10‑90% RH | Supply Ability | 1500 |
| SPI Logic Leve | 3.3V TTL, 5V signal tolerance | Power Supply Source | Powered by PC USB port |
| Host/Slave | SPI Host Mode | Packaging Details | Box pack |
| Operating Temperature | -20℃ ~ +55℃ | Payment Terms | L/C, D/A, D/P, T/T, Western Union |
| SPI Signal Pins | SCK, MOSI, MISO, CS, GND | Delivery Time | 5-8 days |
| USB Interface | USB 2.0 Full-Speed | Product Name | USB‑SPI Converter compatible with OPC-N3 |
| Model Number | USB‑SPI | Place of Origin | Britain |
| Brand Name | YJJ | ||
| High Light | YJJ USB-SPI converter module ，OPC-N3 dust monitoring module ，lab measurement sensor module | ||
Product Description:
YJJ USB-SPI Converter Module for OPC-N3 Dust Monitoring & Lab Measurement
Features:
OPC-N3 Optical Particulate Matter Counter (with USB-SPI Converter)
Parameter Description:
Principle: Laser Light Scattering Optical Particle Counter; USB-SPI Converter realizes USB-to-SPI conversion on the PC side, directly reading the SPI data from the OPC-N3 sensor
Core Parameters of OPC-N3 Sensor
| Model | OPC-N3
| Detection Principle | Laser Light Scattering Single Particle Counting, 1st Level Safety Laser
| Particle Size Detection Range | 0.35 - 40 μm (Spherical Equivalent Particle Size)
| Particle Size Channels | 24 Particle Size Grading Channels, Output Particle Size Distribution Histogram
| Output Particulate Matter Indicators | PM1, PM2.5, PM4.25, PM10 Mass Concentration
| Maximum Mass Concentration | 2000 μg/m³
| Maximum Particle Count Rate | 10000 Particles/Second |
| Sampling Flow Rate | Total Flow Rate 5.5L/min; Sampling Flow Rate 220 mL/min |
| Power Supply Voltage | DC 4.8 - 5.2V (Typical 5V) |
| Working Current | Measurement Mode 175mA; Standby < 50mA |
| Built-in Sensors | Internal Temperature and Humidity Compensation Sensor
| Native Communication Interface | SPI-Mode1 (3.3V Logic); Micro-USB; Supports Micro-SD Local CSV Storage |
| Working Temperature | -10℃ ~ +50℃
| Working Humidity | 0 - 95% RH, No Condensation
| Physical Dimensions | 75 mm × 60 mm × 63.5 mm |
| Weight | < 105g |
| Warranty | 24 Months
USB-SPI Converter (with Adapter) Description
> Function: Computer USB Interface to SPI, directly reads the SPI data from the OPC-N3, eliminating the need for MCU single-chip development
1. Interface: USB2.0; SPI Signals: SCK, MOSI, MISO, CS, GND; SPI Mode 1, matching the OPC-N3 communication timing
2. IO Level: 3.3V Logic Level, compatible with OPC-N3 SPI Interface
3. Power Supply: OPC-N3 requires independent 5V power supply, **cannot be powered by the USB-SPI Adapter**, to avoid insufficient power supply causing abnormal fan and laser
4. Software: PC Host Computer reads histogram, PM Concentration, Temperature and Humidity Data
Main Features
1. 24 Channel Particle Size Grading, can output complete particle size distribution, not only PM mass values, can detect large particles such as pollen
2. Built-in Temperature and Humidity Compensation, suitable for complex outdoor environments; supports SD card offline recording
3. Combined with USB-SPI Converter, PC directly collects data, quickly conducting scheme evaluation and laboratory testing
4. Industrial Grade, suitable for high-pollution cities, construction site dust, atmospheric environment monitoring
Typical Application Scenarios
Urban Air Quality Monitoring, Construction Site Dust Monitoring, Atmospheric Research Sampling, Pollen/Allergen Monitoring, Industrial Park Particulate Matter Monitoring, Environmental Monitoring Station, Indoor and Outdoor Air Quality Monitoring Equipment Development
Specifications:
| Operating temperature | -20℃ ~ +55℃ |
| Operating humidity | 10 - 90% RH, no condensation |
| Cables recommended | SPI signal line length ≤ 0.5m |
| SPI clock | Configurable via software, compatible with OPC-N3 communication rate |
| Master / Slave | SPI master mode |
Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
2006
Total Annual:
900000-1000000
Employee Number:
50~80
Ecer Certification：
Verified Supplier
Yijiajie Electronics is a full range of silicon pressure sensors from the United States, FREESCALE/, GE, MEAS, SMI, and a full range of sensing and control products from the United States pressure, temperature and humidity, gas flow, current, Hall effect, etc., Japan HAMAMATSU flame, UV sensors, ph... Yijiajie Electronics is a full range of silicon pressure sensors from the United States, FREESCALE/, GE, MEAS, SMI, and a full range of sensing and control products from the United States pressure, temperature and humidity, gas flow, current, Hall effect, etc., Japan HAMAMATSU flame, UV sensors, ph...
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