#Shorts

📌PIR Digital Sensor BM22S4021-1
💻More Information: www.bestmodule...
✒Description
The BM22S4021-1 is a member of the BM22S402x-1 PIR sensor series and has been calibrated at factory. The trigger mode and triggered time of the product are configurable. Furthermore, it includes temperature compensation and ambient light detect (configure via software) functions.
PIR sensors (Passive Infrared Sensor) allow you to sense motion, almost always used to detect whether a human has moved in or out of the detection range.
They are small, inexpensive, low-power, easy to use, and don't wear out. For these reasons, they are commonly found in appliances and gadgets used in homes or businesses, such as security systems, automatic doors, intelligent lighting, garden lights, guest reception monitors, etc.
The BM22S402x-1 series integrate Fresnel lens, one PIR sensor, and DSP algorithms.The Fresnel lens is used to help focus the PIR sensor's field of view.
Compared to the HT7M21xx series, this series can be more suitable for your applications. Multiple parameters are configurable, such as sensitivity, trigger threshold, and triggered time, etc. It also supports UART interface to automatically output current status of the product every 50ms.
✒Features
◆Operating voltage: 2.7V to 5.5V
◆Operating current: 1.8mA @3.3V
◆Standby current: 1μA
◆Operating temperature: -10 to 60℃
◆Detection area (FOV: H/V): 121° / 77°
◆Intelligent signal recognition algorithm
◆UART interface (baud rate: 38400bps)
◆Configurable sensing sensitivity (8 levels)
◆Trigger mode: single mode / continuous mode (re-triggered)
◆Triggered time: 1 to 6553.5 seconds (configurable)
◆Low voltage detection: 2.7/3.0/3.3/3.6/4.0V (configurable)
◆Includes a temperature sensor for temperature compensation
◆Warm-up time: 30 seconds
◆Factory-calibrated
🏢 Best modules corp.
🔗2F, 19, Innovation First Road, Hsinchu Science Park, Taiwan 30076
🤝[e-mail]
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