Datasheet PM2105L (Cubic) - 9

Product Instal ation
▪When instal PM2105L sensor module in your system or equipment, please make sure that the air inlet and air outletare unobstructed. And there is no huge airflow face to air inlet and air outlet. ▪In order to avoid dust deposition on the surface of sensitive component (laser diode and photosensitive diode), which may affect the measurement accuracy of the sensor, the appropriate instal ation ways are recommended as below.
Recommended Instal ation Non Recommended Instal ation
Cross section Laser diode surface Photosensitive diode surface www.en.gassensor.com.cn 8/19 Document Outline Description Features Working Principle Specifications Dimensions and Connector 1.Dimensions (Unit mm, tolerance ±0.2 mm) Typical Application Circuit Case 1.UART3.3V Application Product Installation User Attention UART Communication Protocol 1. General Statement 2.Format of Serial Communication Protocol 3.Command Table of Serial Protocol Note: Example: 4.3 Set up and Read Particle Calibrated Coefficien Note: Description: 4.4 Close/Open Laser Diode Note: Note: Example: Note: Example: I²C Communication Protocol 1. Brief Introduction 2. Communication Common Description 3. Protocol Detailed Description 3.1Send Command Data 3.2Read Command Data Packing Information