Product Name: Integrated Air Quality Sensor Module Item No.: AM4100-I Version: V0.2 Date: December 29, 2018

Integrated Air Quality Sensor Module AM4100-I Applications ▪ Air purifier ▪ Air quality monitor ▪ Air conditioner ▪ Ventilation system ▪ Consumer electronic products ▪ Environmental monitoring Description AM4100-I is an integrated air quality sensor module, able to detect indoor particle concentration, CO2 concentration, VOC, RHT and output real-time measurement data. It is with stable performance, compact structure design, multi-function and optional connection ways. Features ▪ Highly integrated with sensors including laser particle, NDIR CO2, VOC, temperature and humidity for option ▪ High...

Dimensions and Connector 1. Dimensions and Connector (Unit mm, tolerance ±0.2 mm) Power supply input (+5V) Power supply input (GND) The interface connector is located at the side of the sensor. Corresponding female plug part number is XH-6 from JST. The pitch is 2.5mm. The connection cable with female connector at both ends can also be customized.

Product Installation 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 installation ways are recommended as below. Recommended Installation Cross section Cross section The blue is the front of laser diode The blue is the front of User attention ▪The laser particle sensor module is suitable for indoor air quality testing, so please avoid working under bad environment which contains a lot of dust; When the laser particle sensor module works, please make sure the...

UART Communication Protocol 1. General 1. General Statement Statemen 1). The data in this protocol are all hexadecimal data. Such as "46 for decimal [70]" 2). [xx] for single-byte data (unsigned, 0-255); high byte of double byte data is in the front, the low byte in the back 3). Baud rate: 9600, data bits: 8, stop bits:1, parity: No. 2. Format of Serial Communication Prot 2. Format of Serial Communication Protocol Proto Sending format of software: Start Symbol Detail description on protocol format: Protocol Format Command sending fixed [11H], the module respond fixed [16H] Frame bytes length...

CO2 VOC RH T PM2.5 reserved reserved state CS Calibration target value = DF1*256+DF2 Before CO2 calibration, please make sure that current ambient CO2 value is the zero target value(400ppm), and stable time is 2 minutes at least.

4.3 Open and Close Particle Measurement Send: 11 03 0C DF1 1E CS Response: 16 02 0C DF1 CS Function: open and close particle measurement Statement: 1. When send command, DF1=2 is measurement open; DF1=1 is measurement close; 2. When respond command, DF1=2 is measurement open; DF1=1 is measurement close; 3. When the sensor receives command for measurement open, it will go into continuous measuring mode; If send: 11 03 0C 02 1E C0 // open particle measurement Respond: 16 02 0C 02 DA // the sensor module is under measurement open status If send: 11 03 0C 01 1E C1 // close particle measurement Respond:...

This is an I2C protocol for AM4100. The sensor module is lower computer, it is not able to initiate communication automatically. Communication is initiated via main control board, it reads data and sends control commands. Communication clock frequency is <=30 Khz. START: start signal, send by main controlled board. STOP: stop signal, send by main controlled board. ACK: acknowledge signal, send by the sensor module if in bold; otherwise, send by main controlled board; NACK: non-acknowledge signal, send by the sensor module if in bold; otherwise, send by main controlled board; Dx: receive and send...

3.2 Read Data Command

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