mmWave-C4001 24Ghz Human Presence Detection Sensor The DFRobot C4001 24GHz Millimeter-Wave FMCW Radar is the perfect solution for human presence detection. It features long-range measurement, high accuracy, advanced FMCW technology, durable build, easy integration, and strong anti-interference capabilities. Made with robust materials, this radar sensor ensures reliable performance in harsh conditions. Its state-of-the-art FMCW modulation provides superior accuracy, making it ideal for motion detection and proximity sensing.  The compact design and versatile installation options simplify setup and enhance project capabilities. The C4001 radar sensor measures up to 25 meters and is suitable for real-time human presence detection. Available in various sizes.

4-CH IR Line Sensor Module A 4-channel IR line sensor module is a type of sensor that uses infrared (IR) technology to detect the presence or absence of a line or object. It typically consists of four individual IR sensors, each with its own phototransistor, that are arranged in a row. The module can be used to detect the position of a line, the edge of an object, or the presence of an obstacle in a robotic or automation application. It is often used in line-following robots, edge detection, and other similar applications. Applications: Smart car Line and edge following Omnidirectional detecting On-board indicator Package Contains 1 x Tracking Module (Hollow Board + Small Plate Forward) 1 x Female to Female Dupont Line 4-CH IR Line sensor Module Specifications  Working voltage DC 3.3V-5V Output interface 6 wire interface Operating Temperature (℃) -10 ~ +50 Mounting hole M3 Detection range 1mm ~ 60 cm adjustable. Dimensions  10 × 8 × 2 cm Weight  15 grams

HC-SR505 Mini PIR Motion Sensor HC-SR505 Mini Infrared PIR Motion Sensor Detector Module is based on infrared technology, It automatically controls the products with high sensitivity, high reliability, ultra-small size, and ultra-low-voltage operation mode.  The device works based on infrared technology and it can automatically control by itself with high sensitivity and high reliability. Because of the minimum size and low-power operation mode, it is widely used in battery-powered applications. The sensor module is basically used in applications where you want to detect the motion of a body which emits infrared radiations. HC-SR505 is preferred to be used in battery operated systems since the device is specifically designed to be operated by consuming very less power. Because of its small size the module can be installed in applications where the system size is taken in to consideration. Pinout: Pinout of HC-SR505 Mini PIR Motion Sensor It is widely used in various auto-sensing of electrical equipment, especially battery-powered automatic control products. Applications: Body induction lamps. Body sensors toys. Security Products. Industrial automation and control. Auto-sensing of electrical equipment. Battery-powered automatic control. Package Includes : 1 x HC-SR505 Mini Infrared PIR Motion Sensor Module. Specifications: Model HC-SR505 Operating Voltage 4.5 ~ 20V Average Current Consumption 0.06mA Distance Measuring Range 10-300cms Dimensions  10 x 23 x 5 mm Weight  15 grams

IR Remote This is new ultra-thin 38KHz universal infrared IR Remote Control with Battery, NEC encoding format 1-21-key remote control, USB port stereo, car MP3, foot bath, lighting, digital photo frame, microcontroller development board, learning board, etc. The NEC transmission format includes leader codes, customs codes (16 bits), and data codes (16 bits). The frequency of oscillation is determined by the Crystal. The IR LEDs connected to the output emit IR pulses at 38kHz. Applications: Infrared remote control switches are used to control multiple things like thyristor power control, TVs, video games, Space related equipment (NASA), etc. IR Remote Control Switch can also be used to switch on or off electronic appliances like washing machines, radio, TVs, etc. By using the comparative relays we can switch ON or OFF the motor appliances also. read our blog about ir sensor application, which provides detailed information about IR sensors, including their working principles, types, advantages, and disadvantages. Package Includes: 1 x Remote Control 1 x CR2050 Battery (Inside Remote control). Specifications Working Distance more than 8 m Effective Angle 60 degrees Surface materials 0.125 mmPET stick Effective button life 20000 times Dynamic current 3-5 mA Infrared wavelength 940Nm Dimensions  86 x 40 x 6mm Weight  15 grams

TSOP 1838B small The TSOP 1838B is the miniaturized infrared receiver for remote control and other applications requiring improved ambient light rejection. The separate PIN diode and preamplifier IC are assembled on a single lead frame. The epoxy package contains a special IR filter. This module has excellent performance even in disturbed ambient light applications and provides protection against uncontrolled output pulses. Use this IR Receiver Diode – TSOP1838B, a simple IR receiver for the infrared remote control of your next project. With low power consumption and an easy-to-use package, it mates well with embedded electronics and can be used with common IR Remotes  The TSOP1838B is a miniaturized receiver for infrared remote-control systems. A PIN diode and a preamplifier are assembled on a lead frame while the epoxy package acts as an IR filter. The demodulated output signal can be directly decoded by a microprocessor. The TSOP1838B is compatible with all common IR Remote control data formats. Applications: Optical switch Light detecting portion of a remote control AV instruments such as Audio, TV,VCR,CD,MD,DVD,etc. Home appliances such as Air-conditioner, Fan, etc. CATV set-top boxes Multi-media Equipment. Package Includes: 1 x TSOP 1838B small Specifications Voltage Supply 3.0V or 5.0V Universal receiver 38 KHz Dimensions  3 x 1 x 1 cm Weight 5 grams

TCRT 5000 IR Sensor Module The TCRT5000 IR reflective sensor Module uses TCRT5000 IR Sensor to detect color and distance. This sensor module consists of an IR transmitter & an IR receiver. IR Transmitter continuously emits an IR signal which is then reflected by an obstacle and is then detected by the IR receiver. TCRT5000 Infrared Reflective Sensor Module is often used in line following robots, object sorting Robot because this module can sense if a surface is white or black. The measuring distance range from 1mm to 8mm, and the central point is about 2.5mm. There is also an onboard potentiometer to adjust the sensitivity. The infrared diode will be emitting the infrared continually when the module is powered ON when the emitted infrared light has not been reflected or the strength is not big enough, the receiver diode will be in the off state, and the output pin i.e. DO will be LOW. Read our blog Proximity Sensor Types where we explained what is a proximity sensor, different types of Proximity Sensors, and their working principle. Applications: Position sensor for shaft encoder Detection of reflective material such as paper, IBM cards, magnetic tapes etc. Limit switch for mechanical motions in VCR Also check TCRT5000 IR Sensor(pack of 5) The sensor is a reflective type, consisting of an infrared emitter and phototransistor in a leaded package that blocks visible light.  read our blog explaining the application of ir sensor, which provides comprehensive information on the working principles of infrared (IR) sensors, detailing their significance across various technological domains. Package Includes: 1 x TCRT 5000 IR Sensor Module Specifications: Module Model TCRT5000 Working Voltage 3.5-5V (DC) Output Channel 0/1 Detect Distance 1-25mm Focal Distance 2.5mm PCB Size 32 x 14mm Chipset LM393 Weight  15 grams

TSOP 1738 TSOP1738 is an infrared receiver tuned to receive IR of frequency 38 kHz only. It is perfect for making obstacle sensors and reading signals from most IR remotes (TV, AC, Home Theatre Remotes, etc). When used as a receiver in distance sensors, This tsop1738 provides better performance as it allows better reception and protection from ambient light compared to other IR receivers. It can be used to read the signals of most IR Remotes. Composed of robust materials like reinforced plastic housing and aluminium shielding between the receiver and accessories, it ensures long operational life even under the toughest external conditions when exposed directly to sunlight or raindrops etc. With mounting fixtures that come with this tsop1738 allow for hassle-free installation onto any flat surfaces without making modifications or extra holes on them unlike some other models found elsewhere - so you can rest assured there will be no inconvenience during the assembly process whatsoever! Using this superior infrared receiver module means driving your automation needs quite conveniently! Put simply; anyone who requires nonstop wireless performance within their project along with great functionality should get themselves one right away. it'll take real stress off the burden by accomplishing tasks faster & more reliably than ever before whilst not compromising at all upon data integrity throughout the transfer session either !! The TSOP1738 IR sensor module consists of a PIN diode and a preamplifier which are embedded into a single package. The output of TSOP is active low and it gives +5V in the off state. When IR waves, from a source, with a center frequency of 38 kHz incident on it, its output goes low. Lights coming from sunlight, fluorescent lamps, etc. may cause disturbance to it and result in undesirable output even when the source is not transmitting IR signals. A bandpass filter, an integrator stage, and automatic gain control are used to suppress such disturbances.  TSOP module has an inbuilt control circuit for amplifying the coded pulses from the IR transmitter. Pinout: Pinout of TSOP 1738 The sensor can be used for Proximity detection applications along with an IR-led in robotics and security systems. It receives an IR signal at 38khz frequency. Applications:  Receive IR signals Decode Remote signals Analyze, re-create or duplicate remote Signals Wireless control applications Receiver circuit for IR remote controls IR Remote tester circuits Package Includes: 1 x TSOP 1738  Specifications Supply Voltage 5V Power consumption 0.4 to 1.0 mA Min Radiation 0.35 mW/m2 type Angle of detection 90 degrees Dimensions of the casing  12.5 x 10 x 5.8 (mm) Weight  5 grams

TSOP Module Infrared IR Sensor Receiver Module for Arduino adopts an 1838 infrared receiving head. Light resistance, strong electromagnetic interference, built-in infrared dedicated IC, can work under 500 lux light intensity. Widely used in stereo, TV, video machine, disc machine, set-top boxes, digital photo frame; car stereo, remote control toys, satellite receivers, hard disk player, air conditioner, heater; electric fan, lighting, and other home appliances. IR Receiver Module is a 38KHz infrared receiver module that is Arduino compatible. It can receive the standard 38KHz modulated remote controller signal. Through programming the Arduino, you can realize the decoding of the remote controller signal. Using this item, you can make a universal remote controller with the learning function. APPLICATIONS:  Receive IR signals Decode Remote signals Analyze, re-create or duplicate remote Signals Wireless control applications Receiver circuit for IR remote controls IR Remote tester circuits Also, read our blog on the What Is IR Sensor explaining what is IR sensor, how it works, and the application of IR sensors Package Includes: 1 x Infrared IR Sensor Receiver Module for Arduino. Specifications Receiving angle 90 ° Working voltage  2.7 ~ 5.5V Frequency 37.9KHz Dimensions  2.5 x 1.5 x 1.5 cm Weight  5 grams

TCRT5000 IR Sensor The TCRT5000 is a reflective sensor that includes an infrared emitter and phototransistor in a leaded package that blocks visible light. The package includes two mounting clips. This sensor is often used for line-follower robots. TCRT5000 Reflective Optical Sensor IR Infrared Switch is perfect for line tracking robot car like DIY projects When the infrared transmitter emits a beam of light to a piece of paper, if the rays shine on a white surface, they will be reflected and in turn, be received by the Infrared detector, and pin S on the module will output a low-level; If the beam of light encounters a black line, they will be absorbed, thus the Infrared detector gets nothing, and pin S will output a high level. So this module basically acts like a simple switch when it gets close to a white/black object. You can adjust the sensitivity with the potentiometer on the module. Applications of TCRT5000 IR Sensor: Position sensor for shaft encoder. Detection of reflective material such as paper, IBM cards, magnetic tapes, etc. Limit switch for mechanical motions in VCR. Package Includes: 1 x TCRT5000 IR Sensor (Pack of 5) Specifications: Model TCRT5000 Detecting range 0.591″ (15mm) Detecting method Reflective  Collector-Emitter 70V Collector Current 100mA Forward Current  60mA Output Type  Phototransistor Dimensions  4 x 3 x 1cms  Weight  5 grams

HCSR501 PIR Motion Sensor The HC-SR501 PIR Motion Sensor Module used to detect the motion of a human body within the sensor’s range. It is often referred to as “PIR”, “Pyroelectric”, “Passive Infrared” and “IR Motion Sensor” sensors. The PIR Motion sensor module has an onboard pyroelectric sensor, conditioning circuitry, and a dome-shaped Fresnel lens.  The HCSR501 PIR Motion Sensor requires 4.5 ~ 20 DC voltage. This PIR sensor's tiny size and sturdy design make it ideal for a variety of applications, including burglar alarms, automatic lighting control systems, and DIY motion-sensing technology projects.  This PIR sensor features an adjustable time delay function that allows for customization of the sensor's response time. This sensor is compatible with Arduino, Raspberry Pi, AVR, PIC, 8051, etc. Check out our entire range of IR Proximity Motion Sensors

TSOP1838 The TSOP 1838 is an IR remote control receiver device operating at 3 volts. The sensor is a miniaturized version in the family of the TSOP and is used in small size remote control devices. It is designed to sense the Infrared rays of the center frequency of 38 KHz only. The sensor has an inbuilt embedded preamplifier circuit with automatic gain controller along with a bandpass filter. The sensor only detects and responds to the 38 KHz IR ray incident directly on to it. The voltage generated is passed through the amplifying and filter circuit of the sensor in order to amplify and filter the signals, then the noiseless output so obtained can be used to drives the NPN transistor. check out : TSOP 1738 Also check the TSOP 1838B, a miniaturized infrared receiver designed for remote control and other applications requiring improved ambient light rejection. It features a separate PIN diode and preamplifier IC assembled on a single lead frame, with an epoxy package containing a special IR filter. The module offers excellent performance in disturbed ambient light conditions and provides protection against uncontrolled output pulses. Package Includes: 1 x TSOP1838 Specifications: Dimension  7x7x5mm Weight  2g

5mm IR Transmitter Receiver Pair This pair of High-power directional IR LED and Filtered photodiode can be used in various kinds of sensing circuits. The narrow beamwidth IR LED emits focused IR light and the filtered photodiode filters out ambient light without the need for any external circuit. When used with a proper circuit it can give up to 200 mm of reflective sensing and can also be used in high-speed applications like encoders. The IR Transmitter Receiver has a peak wavelength of 940nm. IR sensors are also used in IR imaging devices, optical power meters, sorting devices, missile guidance, remote sensing, flame monitors, moisture analyzers, night vision devices, infrared astronomy, rail safety, etc. APPLICATIONS OF IR TRANSMITTER & RECEIVER PAIR: IP cameras Gas Analyzers Alarm systems and other crime prevention devices Battery-driven human presence sensors for IoT smart homes Read our blog explaining the IR sensor working where we explained the types of IR Sensors, how an IR sensor works with example, and applications of IR Sensors. Package Includes: 1 x 5mm IR Transmitter Receiver Pair Specifications IR TX RX size 5 mm diameter IR LED current rating 30mA nominal, 600mA pulse loading at 1% duty cycle IR LED wavelength 940nM Dimensions  3 x 1 x 1 cms Weight  5 grams

IR Proximity Sensor The IR Proximity Sensor module has great adaptive capability of the ambient light, having a pair of infrared transmitter and the receiver tube, the infrared emitting tube to emit a certain frequency, encounters an obstacle detection direction (reflecting surface), infrared reflected back to the receiver tube receiving, after a comparator circuit processing, the green LED lights up, while the signal output will output digital signal (a low-level signal), through the potentiometer knob to adjust the detection distance, the effective distance range 2 ~ 30cm working voltage of 3.3V-5V. The detection range of the infrared proximity sensor can be adjusted by the potentiometer, with little interference, easy to assemble, easy to use features, can be widely used for line follower robot ,obstacle avoidance, DIY Automatic Sanitizer Dispenser Kit, obstacle avoidance car assembly line count and black-and-white line tracking, and many other occasions.

3mm IR Pair This pair of 3mm IR High-power directional IR LED and Filtered photodiode can be used in various kinds of sensing circuits. The narrow beamwidth IR LED emits focused IR light and the filtered photodiode filters out ambient light without the need for any external circuit. When used with a proper circuit it can give up to 200 mm of reflective sensing and can also be used in high-speed applications like encoders. It has a peak wavelength of 940nm.IR sensors are also used in IR imaging devices, optical power meters, sorting devices, missile guidance, remote sensing, flame monitors, moisture analyzers, night vision devices, infrared astronomy, rail safety, etc. Applications of IR Transmitter & Receiver Pair: IP cameras Gas Analyzers Alarm systems and other crime prevention devices Battery-driven human presence sensors for IoT smart homes IR sensors are also used in IR imaging devices, optical power meters, sorting devices, missile guidance, remote sensing, flame monitors, moisture analyzers, night vision devices, infrared astronomy, rail safety, etc. Package Includes: 1 x 3mm IR Pair Specifications Pair Type  IR Transmitter and Reciever Material  Glass Dimensions  3 x 1 x 1mm Weight 5 grams