Reference: RBD-0022

Ultrasonic Sonar Sensor HC-SR04

284 reviews

This is the HC-SR04 ultrasonic distance sensor. This economical sensor provides 2cm to 400cm of non-contact measurement functionality with a ranging accuracy that can reach up to 3mm. Each HC-SR04 module includes an ultrasonic transmitter, a receiver and a control circuit. There are only four pins that you need to worry about on the HC-SR04: VCC (Power),...

Reference: RBD-0132

TCRT5000L Reflective Optical Sensor

30 reviews

The TCRT5000 and TCRT5000L are reflective sensors which include an infrared emitter and phototransistor in a leaded package which blocks visible light. The package includes two mounting clips. TCRT5000L is the long lead version. Model TCRT5000 Color Black + blue Detecting range: 0.591″ (15mm); Detecting method: Reflective; Collector-Emitter: Voltage:...

Reference: RBD-0151

Flame Sensor Fire Detection Module

59 reviews

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...

Reference: RBD-0431

Formaldehyde/ Formalin Detection Sensor CJMCU-1100 MS1100

2 reviews

Working temperature : -10℃ ~ 50℃ Working humidity : below saturation point Storage temperature : -20℃ ~ 80℃ RoboticsBDPCB Color: Red or Purple 

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-0222

35mm Piezo Ceramic Elements Sound Sensor

17 reviews

Sound pressure level: 85DB 10cm The input voltage: 30vp-p max Ultra-thin and lightweight Low power consumption for voltage type Operating Temperature: -20~70 Storage Temperature: -30-80 Clear sound

Reference: RBD-0315

US-015 Ultrasonic Module Distance Measuring Transducer Sensor

11 reviews

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

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-0423

5 Way Flame/Fire Sensor

2 reviews

Detecting range: >120 degree Analog and digital outputs On-board potentiometer and indicators 1% resistors to make this module more reliable and precise Operating Voltage: 3.3V – 9V Board Diameter: 40 mm.

Reference: RBD-0429

BH1750FVI Digital Light intensity Sensor

9 reviews

High precision determination accurate to 1 Lu for different lights Operating Voltage: 3-5VDC Built-in 16bit A/D converter I2C interface

Reference: RBD-0671

MQ-2 Flammable Gas & Smoke Sensor

68 reviews

Operating Voltage:+5V Preheat Duration:20 s Analog Output Voltage:0 to 5 V Dimension:36x20x21 mm. RoboticsBD

Reference: RBD-2352

Brand: Hi-Link

HLK-LD2410B with BLE 24GHz mmWave Intelligent Switch Human Presence Sensing Radar Module

1 review

High-sensitivity 24GHz mmWave human presence sensing radar module. Detects motion, micro-motion, sitting, and lying human presence. Plug and play with BLE support for seamless integration. Configurable via Bluetooth or UART, with visual debugging tools. Sensing range: up to 5 meters with 0.75m resolution.

Reference: RBD-0352

Knock Sensor Module KY-031

4 reviews

Detect shocks with the spring and send a signal to Controller Board Operating voltage: 3.3V-5V Digital output Bolt holes for easy installation. RoboticsBD

Reference: RBD-0411

HB100 Microwave Sensor 10.525GHz Doppler Radar Motion Detector Arduino

2 reviews

Low current consumption (typical 30 mA) CW or pulse operation Flat profile Long detection range (20 m) Supply voltage: 4.75V to 5.25V X-Band Frequency: 10.525 GHz Minimum Power Output: 13 dBm EIRP. RoboticsBD

Reference: RBD-0419

SparkFun Particle Sensor Breakout - MAX30105

Features: Built-in Red, IR, and Green LEDs 5V operation (3.3V is allowed, but green LED is not guaranteed to operate) Applications include presence detection, distance sensing (18" max), pulse oximetry, blood oxygen saturation level (SpO2), smoke and particle detection Documents: Schematic Eagle Files Hookup Guide Datasheet (MAX30105) MAX3010x Sensor...

Reference: RBD-0672

MQ-3 Alcohol Gas Sensor

9 reviews

Power requirements: 5 VDC @ ~165 mA (heater on) / ~60 mA (heater off). Current Consumption: 150mA. RoboticsBD DO output:  0.1 and 5V. AO output: 0.1- 0.3 V (relative to pollution), the maximum concentration of a voltage of about 4V Detecting Concentration: 0.05-10mg/L Alcohol.

Reference: RBD-0823

Optical Sensitive Resistance Light Detection Photosensitive LDR Sensor Module

39 reviews

LDR module 4 PIN Operating voltage 3.3V-5V Signal output indicator light. LDR module 4 PIN Able to detect ambient brightness and light intensity Adjustable sensitivity (via blue digital potentiometer adjustment)

Reference: RBD-2351

Brand: Hi-Link

HLK-LD2410C 24GHz mmWave 5M Human Presence Radar Sensor Motion Module

2 reviews

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.

Reference: RBD-0415

801S Vibration Sensor Module

3 reviews

Has a signal output instruction When the output valid signal is high, the light goes out The sensitivity is adjustable (fine-tuning) The wide detection range of vibration, no direction With mounting holes, firmware installation is flexible and convenient. RoboticsBD

Reference: RBD-0673

MQ-4 Methane Natural Gas Sensor

10 reviews

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