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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Module for measuring infrared temperature Uses the GY-MCU90640 MLX90640 BAA 32*24 dot matrix sensor Field of view angle of 55*34 degrees Ambient temperature range of -40 to 85 degrees Target temperature range of -40 to 300 degrees Serial output frequency supports up to 16HZ baud rate 460800
The 45 in 1 Sensor Module Kit for Arduino is a comprehensive learning and prototyping set designed for beginners, students, and makers interested in exploring electronics and programming. Building upon the classic 37-in-1 kit, this upgraded version adds even more practical modules such as a gyroscope, soil sensor, clock module, and SD card reader—enabling...
The module can detect the surrounding environment of the humidity and temperature High reliability and excellent long-term stability The output from the digital output Humidity measuring range: 20%~90%RH(0~50 degree (temperature compensation). Temperature measuring range: 0~+50degree. Humidity measurement accuracy: ±5.0%RH. Temperature measurement...
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Working voltage: DC 5 V Static current: 3 mA Working temperature: 0 ~ + 70° Output way: GPIO Induction Angle: Less than 15° Detection range:2 cm to 400 cm Detecting precision: 0.3 cm + 1% Sensor size: Approx. 45 x 20 x 1.6mm Hole diameter: Approx. 1mm. RoboticsBD
Optical infrared reflective sensor for line tracking and object detection Uses IR LED + receiver pair with onboard LM393 comparator Adjustable sensitivity via 10K potentiometer Detection range: up to ~1" at 5V, ~0.6" at 3.3V Output logic: HIGH normally, LOW when reflective surface detected Operates on 3.0V – 5V, with onboard detection LED indicator
The VCNL4020 is a combined proximity and ambient light sensor module designed for short-range object detection and light level measurement. It integrates proximity sensing and illuminance detection in a single module with I2C communication, making it suitable for smart devices, automation systems, and embedded electronics projects.
940nm laser classified as class 1 under operation condition by IEC 60825-1:2014-3rd edition Small ceramic package(20×13.2×2.0mm) Long range absolute range measurement up to 1.8m within 5% accuracy at indoor
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.
