ERD-RS211 Series
Key Features
Function
Human Presence Detection
Detection Area
6m @FOV:120°
Frequency Band
24GHz
Output Interface
IIC、UART、IO
Size
12x8x1.35mm
Overview
This is an ultra-low power and ultra-compact human presence radar module, featuring a high-performance 1T1R microstrip antenna and intelligent algorithmic firmware. It is capable of detecting moving, standing, and stationary human targets.
Specifications
| Modulation System | FMCW |
| Antenna | 1T1R |
| Input Voltage | 3-5.5V |
| Operating Current | 20µA @ 3.3V |
| Operating Temperature | -40℃ to 85℃ |
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FAQs
Why does the sensor become less sensitive after being installed into the final product?
Check if the spacing between the module and the product structure is
equal to a half-wavelength.
Verify that the input voltage ripple of the module is less than 100mV.
Ensure that the housing material does not contain metal.
Will multiple modules interfere with each other if used simultaneously?
Avoid facing the antennas directly toward each other for modules operating within the same 24GHz frequency band.
For ceiling-mount installations, maintain a distance of 3 meters between adjacent modules.
Does the module come with pre-installed firmware?
No, the module is shipped without firmware. The user's main controller must host and download both the firmware and configuration files to the module, and the driver porting work needs to be completed on the controller side.
Is debugging this module very complicated?
Not at all. We provide a complete host computer debugging tool and open up the low-level configuration parameters, giving users greater flexibility and autonomy during the debugging process.
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We are here to help you.
Customer SupportLooking for more information about our products and solutions? Contact our team at marketing@eardatek.com
Contact Info
Lianfeng Originality Park A, JiSheng Rd. No.2, HuangGe Town, NanSha District, Guangzhou, PRC.
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