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EC Buying HLK-LD1115H-24G Human Presence Sensor Module LD1115H Human Micro-Motion Detection Module 24GHz Millimeter Wave Mobile Induction Radar Module TTL Serial Communication
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EC Buying HLK-LD1115H-24G Human Presence Sensor Features
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HLK-LD1115H-24G is the high sensitivity 24GHz millimeter wave human presence detection radar module
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Different from the traditional radar by detecting the human body movement of large movements or small amplitude of body movements to determine the existence of the human body, the main feature of this module is based on the function of the traditional human body sensing radar, and at the same time has the function of detecting the accumulation of human breathing and other small amplitude movement, to determine the existence of the human body
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compared with the traditional radar, with a certain range of presence detection, higher accuracy, not easy to miss
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The module can penetrate the non-metallic shell without opening. Common materials include plastic, glass, wood, ceramics, etc.
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Frequency: 24G-24.25GHz; Modulation method: CW; Detection distance: 4m for sitting and 16m for movement; Scope: Hanging height of 3m, coverage radius of static human body detection>2m; Power supply: 3.6-5V; Current: 70mA; Output serial port level: 3.3V; Detection cycle: adaptive; Antenna half power angle: ± 57 °/± 24 ° (horizontal/vertical); Data format: serial port ASCIl output/high and low levels
About EC Buying HLK-LD1115H-24G Human Presence Sensor
Pin interface definition: (It is recommended to use a 2.54mm spacing row pin connector for the interface) VCC: 5V power supply GND: Grounding VO: Inductive output pin (optional) URX: TTL serial port reception UTX: TTL serial port transmission You can debug and test HLK-LD1115H-2.4G on a computer through a serial port assistant. Use any serial Debugger. Baud 115200, 8-bit data bit, 1-bit stop bit, check bit and flow control are None, and ASCII is selected for reception setting, Select ASCII for sending settings When the radar detects significant motion, it outputs mov, * * * * *. (The second digit represents the signal strength) When the radar detects a stationary state or small amplitude movement of the human body, it outputs Occ, * * * * *. (The second digit represents the signal strength) When the radar cannot detect the target, it stops outputting. Users can set a certain delay in the upper layer to avoid frequent unmanned states when weak signals are present. (The first number represents the position of the spectral line, which can be directly ignored by the user) Note: The module takes approximately 15 seconds to start, and data output begins 15 seconds after being powered on. Because the module makes existence judgments by accumulating signal features for a period of time, when personnel disappear from the radar detection range, the radar will continue to accumulate signals for a period of time, so the radar will stop outputting after a delay time.
