Electronic Sensors

Product Details:

The HC-SR505 PIR (Passive Infrared) Sensor is a motion detection sensor widely used in various automation and security systems. It detects infrared radiation, typically emitted by human bodies, and converts this information into an electrical signal. This sensor is ideal for projects where detecting motion or presence is required, such as in security systems, automated lighting, and alarm systems.

Key Features of the HC-SR505 PIR Sensor:

1. Motion Detection:

   • The HC-SR505 detects motion by sensing changes in infrared radiation in its environment. When a human body or another source of heat moves across its detection range, the sensor can trigger an output signal to indicate motion.

2. Sensitivity and Range:

   • The sensor typically has a detection range of 3-7 meters (depending on the environment) and a detection angle of around 120°. Its sensitivity is adjustable, allowing users to fine-tune the sensor's response based on the specific needs of the application.

3. Low Power Consumption:

   • The HC-SR505 sensor operates at a low voltage (usually 5V DC), consuming minimal power, making it suitable for battery-operated devices and energy-efficient systems.

4. Digital Output:

   • The sensor provides a digital output, which means it outputs either a HIGH or LOW signal depending on the presence of motion. When no motion is detected, the output is LOW (0V), and when motion is detected, the output goes HIGH (5V).

5. Adjustable Time Delay:

   • The HC-SR505 comes with an adjustable time delay for its output signal. This allows the sensor to maintain a HIGH output for a predetermined period (usually adjustable from 5 seconds to 5 minutes) after detecting motion, even if the motion stops. This feature is helpful in applications such as turning lights on after detecting movement.

6. Compact and Easy to Use:

   • The sensor is compact, simple to integrate, and easy to use in various projects. It typically includes a PIR sensor, amplifier, and output circuitry on a small PCB, which can be easily mounted in various locations.

7. Trigger Mode:

   • The HC-SR505 has both triggering modes: it can be used in a single-trigger mode, where it outputs a signal only once when motion is first detected, or it can be set to continuous mode, where the output remains HIGH as long as motion is present.

8. Wide Application:

   • The sensor is widely used in applications such as security alarms, automatic lighting systems, robotics, human presence detection, and energy-saving devices. It's often used in smart homes to trigger lights or appliances when someone enters a room.

Applications of the HC-SR505 PIR Sensor:

1. Security Systems:

   • The HC-SR505 is frequently used in motion detection for security purposes, triggering alarms or activating security cameras when it detects movement.

2. Automatic Lighting Systems:

   • It is used in automated lighting systems to turn lights on when motion is detected in a room or hallway, and turn them off after a delay when no movement is detected.

Product Details:

16-Way TTP229 Capacitive Touch Sensor Module uses TTP229 integrated circuit, making it easy to add capacitive touch input to your project. It features 16 sensitive touch pads that make an ideal replacement for the old fashioned keypads

Technical Specifications:-

• Built-in regulator with external enable / disable option.
• Operating current, @VDD=3V no load.
• At fast mode typical 9.0uA; @VDD=3V.
• operating voltage: The response time about 100mS at fast mode, 200mS at low power mode for TTP224 The response time about 60mS at fast mode, 160mS at low power mode for TTP224N Sensitivity can adjust by the capacitance (0~50pF) outside for each touch pad.
• Provides Fast mode and Low Power mode selection by pad option (LPMB pin).
• Provides direct mode or toggle mode CMOS output or open drain output.
• Active high or active low by pad option (TOG/OD/AHLB pin). Provides 2 output pins TPQ0D, TPQ2D that have no diode protection, active low.
• Have the maximum on time 120sec / 64sec / 16sec / infinite by pad option (MOT1, MOT0 pin); After power-on have about 0.5sec stable-time, during the time do not touch the key pad, and the function is disabled.
• Auto calibration for life, and the re-calibration period is about 4.0sec, when key has not be touched. Application: Wide consumer products; Button key replacement.

Product Details:

The TTP226 is a touch pad detector IC which offers 8 touch key. The touching detection IC is designed for replacing traditional direct button key with diverse pad size. Capacitive touch allows electronics to sense when your finger is within a few millimetres of a surface to simulate a button press just like how the pushbutton works. Capacitive sensing may be used in any place where low to no force human touch sensing is desirable.

Specification:

• On-board TTP226 capacitive touch induction IC
• On-board 8-way level indicator.
• Adjustable output mode, key output mode, longest time and fast/low power output

Product Details:

Description:

• 4 board-level status indicator
• TTP224 capacitive touch sensor IC 4 keys
• The module can set the output mode, the key output mode, the maximum output time and fast / low power selection

Additional Information:

• Item Code: ttp224
• Delivery Time: 8 - 10 days

Product Details:

The PIR (Passive Infra-Red) Sensor HC-SR501 is a pyroelectric device that detects motion by measuring changes in the infrared levels emitted by surrounding objects. This motion can be detected by checking for a high signal on a single I/O pin.

Module provides an optimized circuit that will detect motion up to 6 metres away and can be used in burglar alarms and access control systems.


The PIR sensor and Fresnel lens are fitted onto the the PCB. This enables the board to be mounted inside a case with the detecting lens protruding outwards, whilst still allowing easy access to the controls inside the case.

Additional Information:

• Item Code: HC-SR501

Product Details:

MLX90614ESF-BAA-000-TU-ND is an infrared thermometer for non-contact temperature measurements. It can use with any microcontroller that can communicate with it through it's I2C interface.

Features:

• Easy to integrate
• Mounted on a breakout board with two types of pins
• 10k Pull up resistors for the I2C interface with optional solder jumpers
• Factory calibrated in temperature range:
  • -40+125°C for sensor temperature
  • -70+380°C for object temperature
• High accuracy of 0.5°C over wide temperature range (+50°C for both) High (medical) accuracy calibration
• Measurement resolution of 0.02°C
• Single and dual zone versions
• SMBus compatible digital interface
• Customizable PWM output for continuousreading
• Different package options for applications and measurements versatility

Applications:

• High precision non-contact temperature measurements
• Automotive blind angle detection
• Multiple zone temperature control – up to 127sensors
• Thermal relay / alert
• Movement detection
• Livestock monitoring
• Body temperature measurement

Additional Information:

• Item Code: GY-906MLX90614ESF
• Delivery Time: 8 - 10 days

Product Details:

The 801S Vibration Sensor Module (3 Pin) is a widely used sensor for detecting vibrations and motion. It is commonly used in various applications such as security systems, motion detection, and even in robotic and automation projects. The sensor is designed to sense vibrations caused by impacts or movement and send a corresponding output signal.

Key Features:

1. Vibration Detection:

   • The 801S sensor detects physical vibrations, shocks, or movements. It works by sensing mechanical vibrations in the environment, which are then converted into an electrical signal.

2. Simple Interface:

   • The module has a 3-pin configuration that typically includes:
     • VCC (Power): Supplies power to the sensor, usually 3.3V or 5V depending on the version of the module.
     • GND (Ground): The ground connection for the sensor.
     • OUT (Output): The output pin that sends a digital signal when a vibration is detected.

3. Digital Output:

   • The sensor provides a digital output, which is either HIGH (1) or LOW (0), depending on whether it detects a vibration. When no vibration is detected, the output is LOW. When the sensor detects a vibration or movement, it triggers a HIGH output signal.

4. Sensitivity Adjustment:

   • The module often includes a potentiometer or adjustment screw to fine-tune the sensitivity. This allows you to control the threshold at which the sensor detects vibrations. The sensitivity can be adjusted to either increase or decrease the sensor's responsiveness to minor or major vibrations.

5. Built-in Tilt Mechanism:

   • The module uses a mechanical ball that rolls and connects with a contact when vibrations are detected. The ball moves in response to vibrations, closing a circuit and triggering the output.

6. Low Power Consumption:

   • The module is energy-efficient, making it suitable for battery-powered applications such as remote sensing or security devices.

7. Small and Compact:

   • The 801S sensor is compact in size, making it easy to integrate into various projects, whether they be standalone applications or embedded in larger systems.

Applications:

1. Security Systems:

   • The sensor is commonly used in security alarms or intruder detection systems. It can detect physical shocks or vibrations, such as a door being tampered with or a window being broken, and trigger an alarm.

2. Automated Systems:

   • In automation projects, the 801S sensor can be used to detect movement or vibrations, acting as an input to trigger other actions like turning on a motor, activating a relay, or controlling a robotic system.

3. Industrial Equipment Monitoring:

   • The sensor is used in industrial machinery monitoring, where it detects vibrations from machinery or equipment to identify unusual behavior that might indicate a malfunction or wear and tear.

4. Robotics:

   • In robotics, the vibration sensor can be used to detect movement or shocks and to provide feedback for balancing or obstacle detection systems.

Product Details:

The TCS34725 Color Sensor RGB Development Board Module is a sophisticated color sensor that can detect and measure the intensity of red, green, blue, and clear light components. It provides accurate RGB color sensing and is ideal for various applications requiring precise color detection and ambient light measurement, such as color matching, robotics, environmental monitoring, and industrial automation.

Key Features:

1. RGB and Clear Light Detection:

   • Measures the intensity of red, green, blue, and clear (ambient light) components. It provides raw data to help identify or match colors accurately.

2. Integrated IR Filter:

   • The sensor has a built-in infrared (IR) blocking filter, which filters out IR light and ensures that only visible light (RGB) is measured. This makes the sensor more reliable under varying lighting conditions.

3. High Accuracy and Sensitivity:

   • The TCS34725 delivers precise color and light intensity measurements, supporting accurate color detection and matching in a wide range of environments.

4. I2C Interface:

   • The module communicates with microcontrollers (like Arduino, Raspberry Pi) via the I2C protocol. This makes it easy to integrate the sensor into a variety of electronic projects without the need for complex wiring.

5. Built-in LED Driver:

   • The TCS34725 comes with an integrated LED driver, which allows you to use an external white LED to illuminate the object being sensed. This ensures consistent lighting for accurate color measurements, especially in low-light environments.

6. Configurable Integration Time:

   • The module allows you to adjust the integration time (the time during which light is collected), offering flexibility in balancing between measurement speed and accuracy. Integration times can range from 2.4ms to 614.4ms.

7. Low Power Consumption:

   • The sensor is designed with low power consumption, which makes it suitable for battery-powered projects and energy-efficient systems.

8. Voltage Range:

   • The sensor operates within a voltage range of 2.7V to 3.6V, making it compatible with most 3.3V and 5V systems.

9. Compact Design:

   • The module is compact and easy to integrate into embedded systems and robotics projects where space is limited.

10. Wide Range of Applications:

    • Ideal for applications such as robotics, color sorting, ambient light sensing, color matching, environmental monitoring, and smart home systems.

Product Details:

The ZMPT107-1 AC Voltage Sensor is a popular sensor used to measure the AC voltage in an electrical circuit. It’s commonly used in DIY projects, energy monitoring systems, and applications like Arduino or Raspberry Pi for measuring mains voltage (typically 110V or 220V, depending on your region).

Product Details:

Specifications:

• It's a useful tool for gardening.
• Used to measure soil PH, humidity and light.
• “MOIST” key is correspondent to MOIST on the table. 1-3 (red part) indicate watering needed, 4-7 (green part) indicate water suitable, 8-10 (blue part) indicate too wet.Please adjust watering time according to plant species.
• “PH” key is correspondent to PH 8-3.5 on the table. 7 indicate neutral, the lower the value is, the higher the acidity is. Please adjust soil acidity according to plant species.
• “LIGHT” key is 0-2000 lumen. The higher the value is, the stronger the light is. Please determine the need for shade according to plant species.
• Note: prohibit to probe into water directly; Not insert in the soil for a long time to use.

Features:

• The tool plant owners, gardeners can't live without!
• 3 IN 1: Moisture, Light PH meter Soil analyzer meter.
• For outdoor indoor plants, gardens grass lawn.
• Take the guess work out of your daily garden watering light and moisture.
• Save water, energy and keep your plants, lawn, flower in top condition.
• Measures moisture at root level.
• Prevents over and under watering
• Scientifically accurate.
• Easy to use, just insert and read.
• No battery required, simple and convenient to use
• Simply insert the meter into the soil, switch to the setting you want to measure and read the scale.

Product Details:

A Magnetic Contact is an electrically controlled switch used for switching a power circuit, similar to a relay. Magnetic contacts give exact position of the door (open/close).

 

Product Details:

Miniature Microwave Motion Sensor is a X-Band Bi-Static Doppler transceiver module. Its built-in Dielectric Resonator Oscillator (DRO) and a pair of Microstrip patch antenna array, make it ideal for OEM usage in motion detection equipment. This module is ideally suitable for false alarms reduction in intruder detectors when work together with Passive Infrared (PIR) sensor. It can also be used for auto-door opening and vehicle speed measurement.

Additional Information:

• Item Code: HB100
• Delivery Time: 8 - 10 days

Product Details:

5 Channel Tracking Sensor Tracking Module Infrared Sensor is based on the infrared reflection sensor, it is often used to make tracking smart cars. The infrared emitting diode of the sensor continuously emits infrared rays. When the emitted infrared rays are reflected by the object, they are received by the infrared receiver and output analogue values. The output analogue value is related to the object distance and the colour of the object. The position of the tracking line is judged by calculating the analogue value of the five outputs.

Product Details:

The Sharp Optical Dust Sensor (GP2Y1010AU0F) is especially effective in detecting very fine particles like cigarette smoke, and is commonly used in air purifier systems.

Features:

• Optical air quality sensor, designed to sense dust particles
• Very low current consumption
• Commonly used in air purifier systems
• RoHS Compliant

Product Details:

NTC thermistor for temperature sensor is one where the thermistor chip is welded with leads by alloy soldering process, then partially treated by glass sealing.
The element has a bead form with good stability, small size and rapid response
Widely used in temperature sensors, electronic thermometers and eternity calendar, temperature compensation,various kinds of household appliances as well as Industrial, medical, environmental protection, weather and food processing equipment etc.

Features:

• Fastest response time and high accuracy
• Better Stability ,as chip is welded with leads by alloy soldering process
• High resistance and mechanical strength
• Small size, lightweight and cheap
• Mass production for high accurate element
• Operation temperature range: -50 to +260 degrees Celsius
• Thermal time constant: less than 5s (In still air)
• Usable in high-temperature and high-moisture environments

Product Details:

This is an infrared based sensor array which can be used in advanced line following and grid navigation robots. The array has 4 individual sensors placed next to each other. Each sensor has its own digital output and can sense the presence of a line and indicate it with a 5V logic output. On reading the the digital state of the eight sensors, the user can not only detect the line but also get to know how far the center of the robot is from the line. When all sensors sense the line, the robot is on an intersection.

Features:

• Uses 4 sensors for best resolution.
• Great useful in building fast line following and grid navigating robots.
• Comes with easy to use digital outputs that can be connected directly to microcontrollers.
• The array has mounting holes of 3mm diameter for easy mounting 

Specification:

• The working current, try to choose more than 1 a power supply
• The detection distance: 1 mm and 60 cm adjustable, the closer distance performance more stable, white reflection furthest distance

Additional Information:

• Item Code: array-4-way

Product Details:

This module is ideally suited to providing an accurate AC current measurement up to 5 Amps. A proportional voltage signal will be provided on the Output pin, at a 1000:1 transformation ratio. This provides a simple and effective way of monitoring current in your project.

Additional Information:

• Item Code: ZHT103

Product Details:

Ultrasonic ranging module HC - SR04 provides 2cm - 400cm non-contact measurement function, the ranging accuracy can reach to 3mm. The modules includes ultrasonic transmitters, receiver and control circuit. The basic principle of work:

 

• Using IO trigger for at least 10us high level signal,
• The Module automatically sends eight 40 kHz and detect whether there is a pulse signal back.
• IF the signal back, through high level , time of high output IO duration is the time from sending ultrasonic to returning.

Test distance = (high level time×velocity of sound (340M/S) / 2

Wire connecting direct as following:

• 5V Supply
• Trigger Pulse Input
• Echo Pulse Output
• 0V Ground

 

Additional Information:

• Item Code: HC-SR04

Product Details:

This AC Voltage Sensor is the low-cost solution to solve all the above problems. If you want to measure AC voltage and have size limitations, this is best low cost and high precision Voltage Transducer for PCB Mounting. This module makes it easy to measure AC voltage up to 1000 volts without any noise. Its size is slightly smaller than ZMPC101B.

Additional Information:

• Item Code: ZMPT107-1_Ac

Product Details:

The LED Traffic Lights Signal Module / Digital Signal Output Traffic Light Module is another great interesting DIY accessory. This is a mini-traffic light display module, high brightness, very suitable for the production of a traffic light system model.Can be connected to the motherboard’s PWM pin to control the brightness of the light.

Additional Information:

• Item Code: traffic_signal_module

Product Details:

Bosch has stepped up their game with their new BMP280 sensor, an environmental sensor with temperature, barometric pressure that is the next generation upgrade to the BMP085/BMP180/BMP183. This sensor is great for all sorts of weather sensing and can even be used in both I2C and SPI! This precision sensor from Bosch is the best low-cost, precision sensing solution for measuring barometric pressure with ±1 hPa absolute accuracy, and temperature with ±1.0°C accuracy. Because pressure changes with altitude, and the pressure measurements are so good, you can also use it as an altimeter with ±1 meter accuracy Enhancement of GPS navigation(e.g.time-to-first-fix improvement,dead-reckoning,slope detection) Indoor navigation(floor detection,elevator detection) Outdoor navigation,leisure and sports applications Weather forecast Health care application(e.g. sirometry) Vertical velocity indication(e.g. risk/sink speed)

Additional Information:

• Packaging Details: 1 x GY-BMP280-3.3 High Precision Atmospheric Pressure Sensor Module

Product Details:

The CD74HC4067 is a 16-channel analog multiplexer (also known as a mux) designed to switch multiple analog or digital signals to a single output line. It belongs to the HC (High-Speed CMOS) family of integrated circuits, offering a high-speed and low-power solution for signal routing in various applications.

Key Features:

• 16-Channel Multiplexer: The CD74HC4067 has 16 channels, which means it can route one of 16 input signals to a single output, based on the selection lines.
• Analog and Digital Signals: It can be used for both analog and digital signal routing, making it versatile for various applications like sensor readings, signal processing, and communication systems.
• High-Speed CMOS Technology: The chip operates at high speeds with low power consumption, ensuring efficient operation in embedded and control systems.
• Voltage Range: Typically operates with a supply voltage of 2V to 6V, making it compatible with a wide range of logic levels and systems.
• Low ON Resistance: The ON resistance of the multiplexer is low, ensuring minimal signal attenuation when the switch is closed, which is important for high-fidelity signal transmission.
• Easy Control with Digital Logic: It uses 4 digital control pins (S0, S1, S2, S3) to select one of the 16 channels, making it easy to interface with microcontrollers like Arduino or Raspberry Pi.
• Low Power Consumption: The chip is designed to consume minimal power during operation, suitable for battery-powered and energy-efficient projects.
• High Isolation: The multiplexer ensures good signal isolation between the input channels when the corresponding output is not selected.

Applications:

• Sensor Data Multiplexing: Used in applications where multiple sensors need to share a single analog input to a microcontroller, such as in robotics, environmental monitoring, and measurement systems.
• Audio or Video Signal Routing: Ideal for routing audio, video, or other high-frequency signals in multimedia devices, home automation, and test equipment.
• Control Systems: Used in control systems to select between different inputs (e.g., temperature sensors, voltage readings) and send them to a microcontroller or processing unit.
• Data Acquisition Systems: Commonly used in systems that need to read multiple sensors or analog signals but have limited input channels on the microcontroller.
• Communication Systems: Can be used in communication circuits to switch between different data lines, providing flexibility in system design.

The CD74HC4067 is a versatile, high-performance analog multiplexer that can be used in a variety of signal routing applications, helping to save space and simplify wiring in projects requiring multiple input sources.

Product Details:

The module uses 24 high-precision A / D converter chip hx711, is designed for high-precision electronic scale and design, with two analog input channels, the internal programmable gain amplifier integrated multiplier 128.

The input circuit can be configured to provide an electrical bridge the bridge voltage (e.g., pressure, weight) sensor mode.

The input circuit can be configured to provide a bridge voltage electrical bridge (such as pressure, weight) sensor model is an ideal high-precision sampling front-end modules;

• Comprehensive error (% F.S): 0.05
• Sensitivity (mv / v): 1.0  0.1
• Zero output (mv / v):  0.1

Product Details:

An eye blink sensor relies on infrared technology to detect if a person's eye is closed. The sensor is made up of two components: an infrared transmitter and an infrared receiver. The transmitter emits infrared waves onto the eye, while the receiver searches for changes in the reflected waves, indicating that the eye has blinked. The sensor's output is sent to a microcontroller board, such as Arduino, Raspberry Pi, AVR, PIC, or other microcontrollers.
To create an eye blink sensor with an Arduino, one requires an eye blink sensor, an Arduino board, and a switch between the power supply and the Arduino. The sensor has three pins: GND (ground), 5V, and OP (output). The sensor's output is transmitted to the Arduino board, which can be programmed to execute various tasks based on the output.

Additional Information:

• Item Code: eye-blink