{"product_id":"gravity-mmwave-c4001-24ghz-human-presence-detection-sensor-12-meters-i2c-uart","title":"Gravity: mmWave C4001 24GHz Human Presence Detection Sensor (12 Meters, I2C \u0026 UART)","description":"\u003ch4\u003eIntroduction\u003c\/h4\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe Gravity: C4001 millimeter-wave presence sensor, operating at a wavelength signal of 24GHz, boasts a horizontal detection range of 100°, a presence detection range of 8 meters, and a motion detection and ranging range of 12 meters. It utilizes the Gravity interface (PH2.0) and supports I2C and UART communication methods, compatible with\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/robotpishop.com\/collections\/boards\" target=\"_blank\" rel=\"noopener\"\u003eArduino\u003c\/a\u003e,\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/robotpishop.com\/collections\/boards-pi\" target=\"_blank\" rel=\"noopener\"\u003eRaspberry Pi\u003c\/a\u003e,\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/robotpishop.com\/collections\/esp\" target=\"_blank\" rel=\"noopener\"\u003eESP32 \/ ESP8266\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003edevelopment boards. Perfect for human presence detection, environmental monitoring, and real-time monitoring projects.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHuman detection\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eCompared to other types of human presence sensors, such as infrared sensors, the C4001 (12m) millimeter wave presence sensor has the advantage of detecting both static and moving objects. It also has a relatively strong anti-interference ability, making it less susceptible to factors such as temperature changes, variations in ambient light, and environmental noise. Whether a person is sitting, sleeping, or moving, the sensor can quickly and sensitively detect their presence.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/dfimg.dfrobot.com\/enshop\/image\/cache3\/data\/SEN0609\/1_0x0.jpg.webp\" alt=\"The differences between millimeter-wave presence sensor and infrared sensor\" title=\"The differences between millimeter-wave presence sensor and infrared sensor\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe differences between millimeter-wave presence sensor and infrared sensor\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDistance and velocity detection\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe C4001 (12m) millimeter wave presence sensor utilizes FMCW modulation for distance and speed measurement. It has a maximum detection range of 12 meters and a speed measurement range of 0.1 to 10 meters per second.\u003c\/p\u003e\n\u003cp\u003eFMCW (Frequency Modulated Continuous Wave) is a type of radar system based on frequency modulation of continuous wave signals. Unlike traditional pulse radar, FMCW radar continuously emits a series of continuous wave signals with gradually changing frequencies while simultaneously receiving the reflected signals. By analyzing the received signals, measurements of parameters such as distance, speed, and angle can be achieved.\u003c\/p\u003e\n\u003cp\u003eCompared to traditional pulse radar technology, FMCW radar can continuously measure the distance of an object. By utilizing the Doppler effect, it can also obtain information about the velocity of the target object. This makes FMCW radar suitable for applications that require tracking the movement of objects. Additionally, FMCW radar can achieve continuous frequency scanning, providing higher measurement resolution. Since it does not require waiting for the return of echo signals, FMCW radar is suitable for applications that require real-time monitoring and tracking of target objects.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/dfimg.dfrobot.com\/enshop\/image\/cache3\/data\/SEN0610\/3_0x0.jpg.webp\" alt=\"Detection Range of millimeter-wave human body sensor\" title=\"Detection Range of millimeter-wave human body sensor\"\u003e\u003c\/p\u003e\n\u003cp\u003eDetection Range of millimeter-wave human body sensor\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWhat is a millimeter-wave radar sensor?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eMillimeter-wave radar technology is a non-contact sensing technology used to detect objects and provide information about their distance, velocity, and angle (in the case of humans, for example). The signals emitted by millimeter-wave sensors fall within the high-frequency spectrum with wavelengths between 24GHz and 300GHz, also known as the millimeter (mm) range.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInstallation Method\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe millimeter-wave human body sensor is sensitive to the installation method, and improper installation can affect the performance and functionality of the sensor. The commonly used installation methods for this module include top installation, bottom installation, horizontal installation, and downward tilted installation.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/dfimg.dfrobot.com\/enshop\/image\/cache3\/data\/SEN0609\/2_0x0.jpg.webp\" alt=\"Top Installation Diagram of millimeter-wave human body sensor\" title=\"Top Installation Diagram of millimeter-wave human body sensor\"\u003e\u003c\/p\u003e\n\u003cp\u003eTop Installation Diagram of millimeter-wave human body sensor\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/dfimg.dfrobot.com\/enshop\/image\/cache3\/data\/SEN0609\/3_0x0.jpg.webp\" alt=\"Bottom Installation of millimeter-wave human body sensor\" title=\"Bottom Installation of millimeter-wave human body sensor\"\u003e\u003c\/p\u003e\n\u003cp\u003eBottom Installation of millimeter-wave human body sensor\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/dfimg.dfrobot.com\/enshop\/image\/cache3\/data\/SEN0609\/4_0x0.jpg.webp\" alt=\"Horizontal Installation of millimeter-wave human body sensor\" title=\"Horizontal Installation of millimeter-wave human body sensor\"\u003e\u003c\/p\u003e\n\u003cp\u003eHorizontal Installation of millimeter-wave human body sensor\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/dfimg.dfrobot.com\/enshop\/image\/cache3\/data\/SEN0610\/3_0x0.png.webp\" alt=\"Wiring diagram of millimeter-wave human body sensor and Arduino Uno\" title=\"Wiring diagram of millimeter-wave human body sensor and Arduino Uno\"\u003e\u003c\/p\u003e\n\u003cp\u003eWiring diagram of millimeter-wave human body sensor and Arduino Uno\u003c\/p\u003e\n\u003cdiv id=\"Features\" class=\"content Features\"\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eCommunication Methods: It supports two communication methods, I2C and UART.\u003c\/li\u003e\n\u003cli\u003eInterface: It uses the Gravity interface (PH2.0).\u003c\/li\u003e\n\u003cli\u003eHuman Detection: It can detect the presence of humans up to 8 meters and detect human motion up to 12 meters.\u003c\/li\u003e\n\u003cli\u003eDistance Detection: It can measure distances from 1.2m to 12m.\u003c\/li\u003e\n\u003cli\u003eSpeed Detection: It can detect speeds from 0.1m\/s to 10m\/s.\u003c\/li\u003e\n\u003cli\u003eStrong anti-interference capability: It is not affected by factors such as snow, haze, temperature, humidity, dust, light, and noise.\u003c\/li\u003e\n\u003cli\u003eCompact size and easy integration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"Applications\" class=\"content Applications\"\u003e\n\u003ch4\u003eApplications\u003c\/h4\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eHuman Detection\u003c\/li\u003e\n\u003cli\u003eDistance and Velocity Detection\u003c\/li\u003e\n\u003cli\u003eEnvironmental Monitoring\u003c\/li\u003e\n\u003cli\u003eIndustrial Automation\u003c\/li\u003e\n\u003cli\u003eReal-time Monitoring and Tracking\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"Specification\" class=\"content Specification\"\u003e\n\u003ch4\u003eSpecification\u003c\/h4\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Voltage: 3.3V\/5V\u003c\/li\u003e\n\u003cli\u003eMaximum Detection Range: 12m\u003c\/li\u003e\n\u003cli\u003eBeam Angle: 100*80°\u003c\/li\u003e\n\u003cli\u003eModulation Mode: FMCW\u003c\/li\u003e\n\u003cli\u003eOperating Frequency: 24GHz\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: -40~85℃\u003c\/li\u003e\n\u003cli\u003eBaud Rate: 9600\u003c\/li\u003e\n\u003cli\u003eI2C Address: 0x2A\/0x2B\u003c\/li\u003e\n\u003cli\u003eSize: 22*30mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"Shipping-List\" class=\"content ShippingList\"\u003e\n\u003ch4\u003eShipping List\u003c\/h4\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eGravity: mmWave 24GHz Human Presence Detection Sensor (12 Meters, I2C \u0026amp; UART) x1\u003c\/li\u003e\n\u003cli\u003eGravity-4P I2C\/UART Sensor Connector x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"Documents\" class=\"content documents\"\u003e\n\u003ch4\u003eDocuments\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0610\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":41722652065925,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0565\/5819\/0725\/files\/1_daadba60-f5fe-492e-b737-1b215f698283.png?v=1782135092","url":"https:\/\/robotpishop.com\/products\/gravity-mmwave-c4001-24ghz-human-presence-detection-sensor-12-meters-i2c-uart","provider":"Robot Pi Shop","version":"1.0","type":"link"}