The Magnetic Sensor CMD20 is a reliable wired reed contact designed for monitoring the open/closed state of doors and windows. Operating like a traditional relay, the circuit remains open by default and closes when the sensor is aligned with its magnetic counterpart, allowing current to flow. With a maximum operating voltage of 40V, current rating of 0.1A, and detection range up to 25mm, this sensor is suitable for a variety of security and automation projects. Its simple two-wire interface makes it easy to connect to microcontrollers such as Arduino using either an external or internal pull-up resistor. Compact, durable, and easy to mount with included screws, the CMD20 sensor is ideal for home automation, burglar alarms, and access monitoring systems. Featured By RoboticsBD.
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The LSM6DS3TR-C is a 6-degree-of-freedom inertial measurement unit (IMU) that integrates a 3-axis accelerometer and a 3-axis gyroscope in a single module. It provides motion, orientation, and rotation sensing via I2C or SPI communication and is suitable for robotics, motion tracking, and embedded sensing applications.
Detecting range: 300~10000ppm Signal output indicator. Dual Signal output (analog output and TTL output). The TTL output signal is low level, allows us to connect with SCM directly. Analog output 0~5V voltage. Quick response and recovery. RoboticsBD
The HLK-LD2402 is a cost-effective 24GHz human presence sensing module developed by Hi-Link. Designed for indoor scenarios, it combines a highly integrated AIoT millimeter-wave radar SoC with intelligent human-body micro-motion detection algorithms. This module enables precise recognition of human presence, motion, and micro-movements in real time.
High-precision formaldehyde (CH₂O) detection module using electrochemical sensing technology. Provides dual output options: UART digital and analog voltage output. Built-in temperature compensation ensures accurate readings under varying environments. Fast response and recovery time (≤60s) for real-time air-quality monitoring. Operates on 3.7V–5.5V with...
Optical Endstop Switch with 1m cable for 3D printers and IR beam applications Detects travel limits, object presence, or beam interruptions reliably Integrated green LED indicator lights when beam is broken Compatible with both 3.3V and 5V logic systems 100cm 24AWG cable with 3-pin 2.54mm JST connectors for easy integration Ideal for 3D printers, security...
Laser Pointer for Accurate Temperature Reading | Auto Data Hold Temperature Measurement Range: -32℃ ~ 320℃ (-26℉ ~ 608℉) Accuracy: ±2℃ / ±2% | Resolution: 0.1℃ or 0.1℉ Response Time & Wavelength: 500ms & (8-14)um | Distance Spot Ratio 12:1 Automatic Data Hold | Auto Shut Off | Rubberized Handle for Grip and Low Impact Resistance
High noise immunity with easy sensing range adjustment via potentiometer. Cylindrical smooth plastic housing protects against deposits and harsh environments. PNP normally closed output with a 20mm adjustable sensing range. Short-circuit, reverse polarity, and overload protection for enhanced reliability. Suitable for position detection or level...
PMS7003 Laser Dust Sensor for precise PM1.0, PM2.5, and PM10 air quality measurement. Detects ultra-fine particles down to 0.3 µm using laser scattering technology. Features UART communication (3.3V logic) for easy integration with Arduino, ESP32, or Raspberry Pi. Compact and energy-efficient design ideal for smart home and environmental monitoring....
Operating Voltage: 5v DC. This module is Small and Simple to use. Digital switch output (0 & 1) High sensitivity Completes the circuit when the module is tilted LED lights up when tilt switch is activated
HLK-LD2410C 24GHz mmWave Radar Sensor for high-precision human presence detection. Detects motion, micro-motion, and stationary states up to 5 meters. Configurable detection range and sensitivity via Bluetooth or UART. Compact design with easy plug-and-play installation. Ideal for smart home, security, and automation applications.
Working Voltage:1.8 to 5.5 V Shutdown Current:0.7µA Color:GreenNote: This board is intended for advanced users with soldering experience and customization skills. Modifications are required to use it with an MCU (Arduino) Check below
4-Channel Infrared Tracking Sensor: Optimized spacing and design for precise line detection. Supports Complex Tracks: Capable of recognizing 90° curves and challenging tracks. Adjustable Sensitivity: Knob-type adjustable resistors for fine-tuning detection. Wide Compatibility: Easily connects to smart cars or expansion boards using cables or DuPont...
High-precision PT100 RTD temperature sensor with 3-wire configuration Wide measuring range from -200°C to +420°C for industrial applications Durable 200mm stainless steel probe with 7mm diameter and M12 thread Waterproof design for reliable use in harsh environments Resistance-based analog output (100Ω at 0°C) for accurate readings 150cm long cable for...
Wide Working Voltage Range: DC 4.5V- 20V Current Drain: <60uA Detection Angle: <140° Detection Distance: 3 to 7m (can be adjusted) Blockade time: 2.5s (Default) Work temperature: -20-+80°C
ESP32 Bluetooth Wi-Fi development board, support NodeMCU / Arduino DHT11 temperature and humidity sensor CP2104 communication chip USB TO TTL Micro USB port Soil probe (long) soil temperature and humidity detection module 18650 Lithium Battery Holder Powered (Battery is not included)
400 tie points 2 Power lanes, Total 100 tie points in power lanes 1 Double strip, Total 300 tie points Perfect for Arduino shield prototyping and testing Plastic housing, metal contact clips
Actuation Distance : 15 – 25 mm; Connecting cable length: 30 cm. Magnetic sensor alarm, control the switch of the circuit via the built-in magnet Alarm when someone intrudes into your places Can be used in places like apartment, hotel, office, etc.
Wide Working Voltage Range: DC 4.5V- 20V Current Drain: <60uA Detection Angle: <140° Detection Distance: 3 to 7m (can be adjusted) Blockade time: 2.5s (Default) Work temperature: -20-+80°C
830 Solder-less Points Ideal for Experimenting With Circuit Design In Labs Compatible with resistance, diodes, transistors, LED’s, Capacitors and other types of electronic components Colored coordinates for easy components placement. Accept a variety of wire sizes 20-29 AWG
Output Channel: 1 Power Supply: 3.3/5V Built in a potentiometer for sensitivity control. Onboard signal output indication, output effective signal is high, at the same time the indicator light up, the output signal can directly connect to microcontroller IO. Detection angle about 60 degrees, the flame spectrum especially sensitive. The flame of the most...
Clean, good waveform driving ability, more than 15mA. Working voltage 3.3V-5 Output format: digital switching output (0 and 1) A fixed bolt holes for easy installation
Compact magnetic reed switch sensor for door/window position detection Normally open (NO) design closes circuit when magnet is nearby Simple to integrate with Arduino, microcontrollers, and alarm systems Small form factor: reed switch 11 × 16 mm, magnet 11 × 15 mm Includes ~35 cm cable for flexible installation Ideal for security systems, smart homes, and...
Actuation Distance : 15 – 25 mm; Connecting cable length: 30 cm. Magnetic sensor alarm, control the switch of the circuit via the built-in magnet Alarm when someone intrudes into your places Can be used in places like apartment, hotel, office, etc.
