Reference: RBD-1970

Brand: DFRobot

Gravity: Speech Synthesis Module V2.0 (Support English and Chinese)

Version 2.0 More natural pronunciation Fewer pronunciation errors for polyphone characters No option of speakers

Reference: RBD-0666

HX1838 NEC Code Infrared Remote Control Module DIY Kit

5 reviews

Crystal: the oscillation frequency of 455. Button: free height is less than 3mm, the force 200-350g, the life of more than 200 000. Photo-detector and preamplifier in one package. Internal filter for PCM frequency. RoboticsBD Improved shielding against EMI. Don’t forget to add CR2025 Battery to your Cart as this remote does not come with a battery

Reference: RBD-0677

MQ-8 Hydrogen Gas Sensor

5 reviews

Using high-quality dual-panel design, with power indicator and TTL signal output instructions. The switching signal having a DO (TTL) output and analog output AO. TTL output valid signal is low. The higher the voltage, the concentration of the analog output voltage is higher. A hydrogen gas detection with good sensitivity. Has a long life and reliable...

Reference: RBD-1740

Vibration Sensor Module Vibration Switch Alarm Module for Arduino

5 reviews

Operating voltage: 3.3 to 5VDC Ball Rolling type of tilt sensor. This small module is easy to use. A fixed bolt hole for easy installation Wide voltage LM393 comparator

Reference: RBD-2097

Small Microphone Sound Sensor Module

5 reviews

5V Dc Power Supply Power indicator light The comparator output is light High Sensitivity Sound Microphone Sensor Detection Module Electric condenser microphone

Reference: RBD-0575

PH Meter Digital Tester Aquarium Pool Water Urine Wine LCD Pen Monitor Protable

7 reviews

Main color: Yellow Measure range: 0.00-14.00pH Resolution: 0.01pH Accuracy: ±0.05pH Calibration: two points automatic calibration

Reference: RBD-0678

MQ-9 Gas Leakage Detection Sensor

3 reviews

Good sensitivity to CO/Combustible Gas High sensitivity to Methane, Propane, and CO Long life and low cost Simple drive circuit Input voltage: DC 5±0.2V Current Consumption: 150mA

Reference: RBD-0687

Infrared Obstacle Avoidance IR Sensor Module

143 reviews

Detection distance: 2 ~ 30cm Detection angle: 35 ° Comparator chip: LM393 3mm screw holes for easy mounting

Reference: RBD-1918

Miniature Vibrating Motor 6x15

2 reviews

Speed(RPM):19000 Motor diameter: 6mm Shaft diameter: 0.8mm Shaft length: 4mm Rated voltage: 1.5V-4.5V

Reference: RBD-2098

Big Microphone Sound Sensor Module

8 reviews

Big Microphone Sound Sensor Module  Sound Detection Sensor Module High Sensitive Voice Sensor

Reference: RBD-0665

Rain & Steam Detection Sensor Module

23 reviews

Operating voltage: 5V Provide both digital and analog output Adjustable sensitivity. RoboticsBD Output LED indicator Compatible with Arduino TTL Compatible Bolt holes for easy installation

Reference: RBD-0679

MQ-135 Gas Sensor

20 reviews

Sensitivity to Ammonia, Sulfide and Benzene steam Sensitive for benzene, alcohol, smoke Fast response and recovery Adjustable sensitivity. RoboticsBD Signal output indicator Output voltage boosts along with the concentration of the measured gases increases.

Reference: RBD-0691

IR Infrared Remote Decoder Encoding Transmitter & Receiver Wireless Module

2 reviews

Supply voltage: 5V Communication: Serial communication (TTL level) Operating istance: 6-10 meters 

Reference: RBD-1932

DC Motor Mobile Phone Vibrator Vibration Motor Alarm Module – Black

2 reviews

Rated voltage: 5 VDC. Port: Digital quantity. Fixed hole:3mm. Pitch:15mm. Drive: MOS tube high-level trigger, low-level cutoff. Compatible with UNO R3/ Mega2560.

Reference: RBD-0667

DHT11 Temperature and Relative Humidity Sensor Module for Arduino

69 reviews

Input Supply Voltage (VDC): 3.3 ~ 5. Supply Current (mA): measurement 0.3mA standby 60μA. Temperature measurement range: 0~50 degrees. Temperature measurement error: ±2 degrees. Humidity measurement range: 20%~95%RH. Humidity measurement error: ±5%RH. RoboticsBD

Reference: RBD-0693

Infrared Line Track Tracker Follower Sensor

8 reviews

Operating Voltage: 3-5.5V Supply Current: ≥ 20mA Optimal Sensing Distance: 3mm Working voltage of 5V, the output of the black line low, white line of high output Uses Infrared Light to Detect Anti-Interference Ability Sensors to adopt TCRT5000 High Sensitivity, Stable Performance Exquisite workmanship, with the indicator Has a fixed bolt hole for easy...

Reference: RBD-0812

High Accuracy I2C MAX30105 Particle Optical Sensor Photodetectors Oximeter Module

1 review

Based on MAX30105 – heart rate, oximeter, smoke sensor Green, red, and infra-red LEDs Interface: I2C (address 0x57) Compatible with 3.3V and 5V logic levels.

Reference: RBD-2078

Vibration Switch Module

No direction, any angle can trigger the work. Sensitivity switches can be selected for the trigger sensitivity according to circuit requirements. This switch is suitable for the trigger of the small current circuit. Component Type: SW-18015P Maximum voltage: 12V Rated Heating Current: 20mA

Reference: RBD-2235

27mm Piezo Ceramic Elements Sound Sensor

1 review

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

Reference: RBD-0241

LM35 Temperature Sensor

36 reviews

Calibrated directly in Degree Celsius (Centigrade) Linear at 10.0 mV/°C scale factor 0.5°C accuracy guarantee-able (at a25°C) Suitable for remote applications Low cost due to wafer-level trimming Operates from 4 to 30 volts Less than 60 mA current drain Low self-heating, 0.08°C in still air Non-linearity only 0.25°C typical  LM35 (working) tested by...