Reference: RBD-0145

YL-69 Soil Hygrometer Humidity & Soil Moisture Detection Sensor

66 reviews

Dual output mode, analog output more accurate A fixed bolt hole for easy installation With power indicator (red) and digital switching output indicator (green) Having LM393 comparator chip, stable. Operating Voltage: 3.3V~5V

Reference: RBD-3022

Retail Footfall People Counter with Web Server Dashboard

A footfall counter tracks the number of people entering or passing through a location. Commonly used in stores, malls, event venues, and public spaces. Provides crucial data for informed business decisions and improving customer experiences. Utilizes AI technology for up to 99% accuracy. Equipped with a server-sync GSM board for real-time data...

Reference: RBD-2938

Brand: DFRobot

Soil NPK Measure Sensor MODBUS-RTU RS485 (IP68, 5-30V)

If you're looking to work with an NPK sensor, you'll quickly notice that most options come with either Chinese-only documentation or limited support, making them difficult for beginners. That's where the DFRobot NPK Sensor stands out — it offers extensive documentation and sample code, making it far more accessible. By using the DFRobot Modbus/RS485...

Reference: RBD-2446

HC-SR04 Plus Ultrasonic Sonar Sensor 2021 3.3V-5V

9 reviews

This is the updated 2021 version of the HC-SR04 Ultrasonic Sensor, offering enhanced features and improved flexibility. Notably, the input voltage now ranges from 2.8V to 5.5V, providing compatibility with a wider range of microcontrollers, including both 3.3V and 5V systems. Mode 1: GPIO (General Purpose Input/Output) Mode 2: I2C (New Feature) Mode 3:...

Reference: RBD-1677

52mm PP Liquid Water Level Sensor Horizontal Float Switch Down

Contact Rating: 10 W. Switching Voltage: 220 V. Switching Current: 0.5 A. Breakdown Voltage: 220 VDC. Carry Current: 1 A. Contact Resistance: 100 mΩ.

Reference: RBD-2122

MAX30100 Pulse Oximeter Heart Rate Sensor Module

9 reviews

Working Voltage:1.8 to 5.5 V Shutdown Current:0.7µA Color:Green Note: This board is intended for advanced users with soldering experience and customization skills. Modifications are required to use it with an MCU 

Reference: RBD-0354

TSL2561 Luminosity & Infrared Light integrating sensor

Approximates Human eye Response Extremely wide dynamic range 1 to 600,000,000 Counts Lux Range: 188u Lux sensitivity, up to 88,000 Lux input measurements Voltage range: 3.3-5V into the onboard regulator This board/chip uses I2C 7-bit addresses 0x29 and 0x28. RoboticsBD

Reference: RBD-0683

Water Level Sensor Depth of Detection Water Sensor for Arduino

13 reviews

Operating voltage: DC3-5V Operating current: less than 20mA Sensor Type: Analog Detection Area: 40mmx16mm Operating temperature: 10℃-30℃ Humidity: 10% -90% non-condensing

Reference: RBD-3645

Flex Sensor 4.5" China

4.5-inch Flex Sensor Made in China Resistance increases with bending: ideal for angle displacement measurements Durable design: tested for over 1 million life cycles Temperature range: -35°C to +80°C, suitable for harsh environments Low profile, lightweight (0.015kg) and simple to integrate in robotics, wearables, and more Used in iconic tech like the...

Reference: RBD-2553

A0221AU / A02YYUW Waterproof Ultrasonic Distance Sensor (3~450cm, UART, IP67)

1 review

Ultrasonic distance sensor determines the distance to a target by measuring time lapses between the sending and receiving of the ultrasonic pulse. This is an easy-to-use commercial-grade ultrasonic sensor module of high performance and reliability, featuring much smaller blind zone, wider sensing angle and a certain penetration power(smog, dust) compared...

Reference: RBD-2710

Eye Blink Detection Analog & Digital Sensor with Goggles High Quality

1 review

The Eye Blink Detection Analog & Digital Sensor with Goggles is a powerful tool designed for Arduino enthusiasts, developers, and researchers interested in human-computer interaction and biometric sensing. Why is an analog eyeblink sensor better than a digital eyeblink sensor? Currently, most eye blink sensors on the market are digital. they can only...

Reference: RBD-2661

IR Beam Interruption Sensor - LED 3mm - 0-50 cm

1 review

The sensor reacts to an interruption in the beam of infrared light that is transmitted between the transmitter and receiver. When the beam is interrupted by another object, the receiver signals this event by lighting up. The module is equipped with a 3 mm IR LED with an illumination angle of 10°. Beam interruption systems are used e.g. in measuring gates.

Reference: RBD-0152

SW-420 NC Type Vibration Sensor Module

18 reviews

Using SW-420 normally closed type vibration sensor Comparator output, clean signal, good waveform, strong driving ability, >15mA Operating voltage 3.3V ~ 5V Output format: digital switching output (0 and 1) Using a wide voltage LM393 comparator With bolt holes for easy installation

Reference: RBD-2114

Multifunctional Expansion Board LM35 Temperature Buzzer for UNO

Multifunctional Expansion Board LM35 Temperature Buzzer for Arduino UNO Fully compatible with Arduino UNO interface Integrates multiple module functions Provides basic experimental modules for beginners Expansion ports for additional module experiments

Reference: RBD-2452

Pulse Heart Rate Sensor Kit For Arduino

This Pulse Sensor is a heart rate sensor designed for Arduino microcontrollers. Development professionals use. The Pulse Sensor Kit brings you all the experience you need, a complete package. The kit includes: A 24inch 3p DuPont line, A soft Velcro Finger Strap, A sensor size sensor ear clip, 4 Velcro dots, and 9 transparent protective dot Pulse Sensor is...

Reference: RBD-2833

Impact Switch Collision Switch Sensor Module

1 review

Type: Vibration Sensors Output: Switching Transducer Dimensions: 25 x 14 x 6 (LxWxH) mm Weight: 3 gm

Reference: RBD-2964

0.8MPa G1/4" inch 5V Stainless Steel Pressure Transducer Sensor

Introducing the latest addition to RoboticsBD's product lineup, the 0.8MPa Stainless Steel Pressure Transducer Sensor. Crafted with high-quality stainless steel, this pressure transducer offers exceptional rigidity and durability, making it ideal for a variety of applications.

Reference: RBD-2508

ENS160 AHT21 Carbon Dioxide CO2 eCO2 TVOC Air Quality Temperature & Humidity Sensor

1 review

The ENS160 is a digital multi-gas sensor specifically designed for indoor air quality testing that optimizes the detection of a wide variety of gases and volatile organic compounds (VOCS), including toluene, hydrogen, ethanol, N02 and ozone. The air quality sensor is used in home and building automation, consumer products, electrical and air purification

Reference: RBD-2059

LDR 20 mm Light Depending Resistor

7 reviews

LDR 20 mm Light Depending Resistor Low-cost sensor device Wide spectral response Use in fire alarms, smoke alarms, control street light Low cost. Ambient Temperature Range. Wide spectral response.

Reference: RBD-2082

Infrared IR Sensor Receiver Module for Arduino

12 reviews

Dimension: 2.5 x 1.5 x 1.5 cm. Receiving angle: 90 °. Working voltage: 2.7 ~ 5.5V. Frequency: 37.9KHz Receiving range: 18m. Weight: 4 gm.

Reference: RBD-1848

Pressure Sensors with Display SPABT-P10-R18-2N-K2-B-SA

Compact Design Country Specific pressure Multiple Displayable Unit Multi-colored, two-part display Alphanumeric display

Reference: RBD-1835

Non-invasive AC current Sensor Split Core Current Transformer SCT-013-050 50A

1 review

Input current (RMS): 50A. Work temperature: -25℃～+70℃. Storage temperature: -30℃～+90℃. Work voltage: 660V. Frequency range: 50Hz-1KHz.

Reference: RBD-1675

PZEM-004T V3.0 AC Digital Multifunction Meter Watt Power Volt Amp With Coil 100A

2 reviews

Model: PZEM-004T Operating Voltage: 80-260VAC Test Voltage: 80-260VAC Rated Current: 100A Rated power: 100A / 22000W Operating frequency: 45-65Hz Measurement accuracy: 1.0

Reference: RBD-2533

QTR-8A Reflectance Sensor Array

3 reviews

This sensor module has 8 IR LED/phototransistor pairs mounted on a 0.375" pitch, making it a great detector for a line-following robot. Pairs of LEDs are arranged in series to halve current consumption, and a MOSFET allows the LEDs to be turned off for additional sensing or power-savings options. Each sensor provides a separate analog voltage output.Note:...

Reference: RBD-3644

Piezoelectric Sensor/Transducer/Buzzer - 35mm Diameter

The Piezoelectric Sensor/Transducer/Buzzer – 35mm Diameter is a highly sensitive vibration sensor ideal for audio detection and impact sensing applications. Built using a copper and ceramic composite, this robust piezo disk is designed for consistent analog signal output in response to pressure, vibration, or acoustic input. Its compact and lightweight...

Reference: RBD-2339

AM312 Mini PIR Motion Sensor

1 review

AM312 Mini PIR Motion Sensor with compact 10x8mm PCB design Wide operating voltage range of 2.7V to 12V DC with low quiescent current (<1mA) Detects motion within 3–5 meters at ≤100° cone angle Features a repeatable trigger with a 2-second delay time Ideal for auto-sensing electrical equipment and smart devices

Reference: RBD-0414

Waterproof DS18B20 Digital Thermal Probe or Sensor

18 reviews

A probe by new original installation import DS18B20 temperature sensor chip. RoboticsBD Chip each pin use heat shrinkable tube to prevent short circuit, internal sealing glue, waterproof, moistureproof. Stainless steel tube encapsulation waterproof moistureproof prevent rust. Stainless steel shell (6 * 45 mm), lead length 100 cm (shielding wire) use...

Reference: RBD-2378

4Pin Photodiode Sensor Module

Sensitive photodiode sensor module for light detection. Dual output: digital (DO) and analog (AO) for versatile applications. Adjustable potentiometer for light sensitivity adjustment. Operates on a wide voltage range of 3.3V–5V with clean comparator output. Compact design with fixed bolt holes for easy installation. Equipped with LM393 comparator for...

Reference: RBD-1199

Hall Effect Sensor A1302 49E

5 reviews

Low-noise output Fast power-on time Ratiometric rail-to-rail output 4.5 to 6.0 V operation Solid-state reliability Factory-programmed at end-of-line for optimumperformance Robust ESD performance 

Reference: RBD-3176

Sensirion CO₂ Humidity and Temperature Sensor SCD30

1 review

The Sensirion SCD30 is a high-quality Nondispersive Infrared (NDIR) CO₂ sensor that integrates temperature and humidity sensing, making it an all-in-one solution for air quality monitoring. With a measurement range of 400 ppm to 10,000 ppm and an accuracy of ±(30 ppm + 3%), the SCD30 delivers reliable and precise readings for environmental and industrial...