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Reference: RBD-1354
Length: 8 inches/20 CM (Long) Material: Copper Plated Pin Spacing: 2.54mm.
Reference: RBD-0351
Contactless transmission of data and supply energy (no battery needed) Operating distance: Up to 100mm (depending on antenna geometry) RoboticsBD Operating frequency: 13.56MHz Data transfer: 106 kbit/s Data integrity: 16 Bit CRC, parity, bit coding bit counting Anticollision Typical ticketing transaction: <100 ms ( including backup management)...
Reference: 0245
Choose your desire Resistor value from below:
Reference: 0031
3 Types Available (Please select from option) 1. Male to Male 2. Male to Female 3. Female-Female
Reference: RBD-0768
Size: 5mm Color: RED Head Shape: Round Lens Appearance: Transparent
Reference: 1353
Length: 12.5 inches/30 CM (Long) Material: Copper Plated Pin Spacing: 2.54mm.
Reference: RBD-0761
Breadboard friendly Mounting Style: Through Hole Mounting Direction: Vertical
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This is DFRobot Gravity: Offline Language Learning Voice Recognition Sensor for Arduino / Raspberry Pi / Python / ESP32 – I2C & UART. This Gravity: Offline Voice Recognition Sensor is built around an offline voice recognition chip, which can be directly used without an internet connection. It comes with 121 built-in fixed command words and supports the addition of 17 custom command words. Any sound could be trained as a command, such as whistling, snapping, or even cat meows, which brings great flexibility to interactive audio projects.
Voice recognition is a computer technology that recognizes and converts speech signals into editable text or operational commands through analysis. It allows people to interact with computers by speaking without using a mouse, keyboard, or other input devices. Voice recognition technology has been widely used in applications such as voice assistants, smart homes, voice search, and voice recognition notebooks.
The module features a dual microphone design with better noise resistance and a longer recognition distance, making it relatively accurate and reliable even in noisy environments. It comes with a built-in speaker and an external speaker interface for real-time voice feedback of recognition results. The module uses both I2C and UART communication methods and supports various 3.3V or 5V controllers, including the micro:bit, Arduino (Arduino UNO, Arduino Leonardo, Arduino MEGA), Raspberry Pi, FireBeetle series, and more.
This voice recognition module provides a reliable and flexible voice interaction solution for makers and electronics enthusiasts, and it can be applied to any applications where voice control or interaction is desirable, such as all kinds of smart home appliances, toys, lamps, and robotics projects. Featured By RoboticsBD.
The module boasts high compatibility, supporting both I2C and UART communication methods, while also being compatible with various 3.3V or 5V controllers, such as micro:bit, Arduino (Arduino UNO, Arduino Leonardo, Arduino MEGA), Raspberry Pi, FireBeetle ESP32 series, and more. This provides a flexible solution for building smart home systems, robotics projects, and more.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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| General Specification | |
| Maximum Operating Current | ≤370 mA (5V) |
| Communication | I2C/UART |
| I2C Address | 0x64 |
| Fixed Command | 121 |
| Fixed Wake-up Command | 1 |
| Custom Command | 17 |
| Learning Activation Command | 1 |
| Onboard Microphone Sensitivity | -28db |
| Module Size | 49×32 mm/1.93×1.26” |
| Weight (g) | 16 |
| Shipping Weight | 0.035 kg |
| Shipping Dimensions | 8 × 7 × 3 cm |
Please allow 5% measuring deviation due to manual measurement.
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The module boasts high compatibility, supporting both I2C and UART communication methods, while also being compatible with various 3.3V or 5V controllers, such as micro:bit, Arduino (Arduino UNO, Arduino Leonardo, Arduino MEGA), Raspberry Pi, FireBeetle ESP32 series, and more. This provides a flexible solution for building smart home systems, robotics projects, and more.
1 x Gravity: Offline Language Learning Voice Recognition Sensor
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The latest price of Gravity: Offline Language Learning Voice Recognition Sensor for Arduino / Raspberry Pi / Python / ESP32 - I2C & UART in Bangladesh is BDT 3,225 You can buy the Gravity: Offline Language Learning Voice Recognition Sensor for Arduino / Raspberry Pi / Python / ESP32 - I2C & UART at best price from our RoboticsBD or visit RoboticsBD Office.
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Please note that the product information provided on our website may not be entirely accurate as it is collected from various sources on the web. While we strive to provide the most up-to-date information possible, we cannot guarantee its accuracy. We recommend that you always read the product labels, warnings, and directions before using any product. |
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Product Images are shown for illustrative purposes only and may differ from the actual product. |
Reference: RBD-1969
Brand: DFRobot
Specifically designed to measure the pH of the solution and reflect the acidity or alkalinity. Improved precision and user experience. Compatible with 5V and 3.3V. Quickly build the pH meter, plug and play, no welding.Purchase a Spare Electrode
Reference: RBD-1970
Brand: DFRobot
Version 2.0 More natural pronunciation Fewer pronunciation errors for polyphone characters No option of speakers
Reference: RBD-1971
Brand: DFRobot
Gravity Expansion Board Designed for Raspberry Pi Pico Compatible with a variety of Gravity sensors and modules. Gravity Expansion Board for Pico All pins brought out, no soldering required Additional Communication Ports: Digital IO, Analog IO, I2C, SPI, UART, GDI Note: The product not include Raspberry Pi Pico. Buy Raspberry Pi Pico here. Buy Raspberry...
Reference: RBD-1972
Brand: DFRobot
Brand Gravity Analog AC Current Sensor 20A AC Current Signal Conversion Module Open Type AC Transformer Probe Included Non-contact Measurement
Reference: RBD-1974
Brand: DFRobot
One-click learn Machine Learning Enabled Onboard Screen Extreme Performance
Reference: RBD-2324
Brand: DFRobot
Gravity Analog ORP Sensor Meter for Arduino with a compact and easy-to-use design Measures Oxidation-Reduction Potential (ORP) in aqueous solutions within -2000mV to 2000mV range Features simple wiring and programming for seamless integration with Arduino Provides reliable water quality measurements for testing, aquaculture, and hydroponics Includes ORP...
Reference: RBD-2325
Brand: DFRobot
Gravity Analog Dissolved Oxygen Sensor Kit for Arduino-compatible projects Measures dissolved oxygen in water to assess water quality in aquaculture, environmental monitoring, and natural science Galvanic probe design with no polarization time required and low maintenance costs Signal converter board with 3.3-5.5V compatibility for Arduino, ESP32,...
Reference: RBD-2493
Brand: DFRobot
Brand: DFRobot Product: Gravity Lab Grade Analog Electrical Conductivity Sensor Supply Voltage: 3.0~5.0V Output Voltage: 0~3.4V Support Detection Range: 0~20ms/cm
Reference: RBD-2541
Brand: DFRobot
This is the latest voice recorder module with integrated record and play functions. Easily record your voice by pressing the record button, speaking and then releasing the button when finished. The module is able to playback 10 seconds in total. Connect an 8Ω 3W speaker or an external active speaker for voice output. The module also has a 3 pin digital...
Reference: RBD-2294
JQ6500 V2.1 MP3 Player Module for playing stereo MP3 or mono audio files Operates in serial communication mode or AD button control mode for versatile functionality Supports FAT16, FAT32 file systems with TF card or USB up to 32GB Features 30-level volume adjustment and 10 EQ settings for customizable audio Compact and easy-to-use module with UART...
Reference: RBD-2691
Compact 15mm speaker for integrating sound into space-constrained projects. 2kHz frequency range suitable for basic audio applications. Through-hole mounting for easy integration with circuit boards. Handles up to 0.5W of power for moderate sound output.
Reference: RBD-3178
The PAM8302 is a compact, high-efficiency Class D mono audio amplifier module capable of delivering up to 2.5W of output power to a 4Ω or 8Ω speaker. Designed for battery-powered and portable projects, this module offers excellent sound amplification with minimal power consumption. Featuring a built-in trim potentiometer for volume adjustment and...
Reference: RBD-550
Supply Voltage: 4.5 – 5.5 V. Current : <40 mA. Digital Interface : 5V TTL level for UART interface and GPIO. Support maximum 80 voice commands, with each voice 1500ms (one or two words speaking). Maximum 7 voice commands effective at same time. Arduino library is supplied. User-control General Pin Output. RoboticsBD
Reference: RBD-2919
This mono Class D amplifier module with a surprisingly compact form factor - less than 2cm on a side - uses a MAX98357 chip to deliver 3W of power. Its I2S input allows an easy association with a Raspberry Pi or ESP32, allowing for example to design a small portable amplified speaker.
Reference: RBD-1582
25 W + 25 W continuous output power at THD = 10% with VCC= 20 V and RL= 8 Ω Wide-range single-supply operation (8 – 26 V) High efficiency (η = 90%) Four selectable, fixed gain settings of nominally 21.6 dB, 27.6 dB, 31.1 dB and 33.6 dB Differential inputs minimize common-mode noise Standby and mute features Short-circuit protection
Reference: RBD-3049
The VC-02-Kit is a development board designed for the VC-02 module, and it is a shared the same board with the VC-01-Kit. The development board integrates the CH340C serial port to a USB chip, providing a basic debugging interface and USB upgrade interface, designing wake-up light and cold and cooling lamp, providing status indication and control...
Reference: RBD-1324
Operating voltage: 2.5V-5.5V Maximum output power: 3W x 2 PCB size is about: length 30mm width 22mm overall height after installed is about 16mm Built with switch Potentiometer, can adjust the volume & control power switch freely! Flexible assembly usage.
Reference: RBD-2747
This is a small 12mm round speaker that operates around the audible 2kHz range. You can use these speakers to create simple music or user interfaces. This is not a true piezoelectric speaker but behaves similarly. Instead of a piezoelectric crystal that vibrates with an electric current, this tiny speaker uses an electromagnet to drive a thin metal sheet....
Reference: RBD-2039
Product Name:DY-SV5W Voice Playback Module Product Number:DY-SV5W Work Voltage:DC 5V Working Temperature range:-20℃~85℃ Working Humidity range:0%-95%RH Size :35*35*4.5mm
Reference: RBD-2307
Compact Stereo Enclosed Speaker with 3W power and 8Ω impedance Delivers clear audio with less than 10% distortion for quality sound output Features a handy 42 cm JST 2PH input cable for easy connection Enclosed design ensures good audio volume and durability Perfect for audio projects, displays, and compact sound applications
Reference: RBD-3188
The LU-ASR01 Intelligent Voice Recognition Module is an advanced voice control board designed for integration into a variety of smart applications. With its high recognition accuracy, long-distance wake-up capabilities, and customizable features, the module is ideal for creating intelligent systems such as smart home devices, voice-controlled toys, and...
Reference: RBD-1970
Brand: DFRobot
Version 2.0 More natural pronunciation Fewer pronunciation errors for polyphone characters No option of speakers
Reference: RBD-0690
The main chip: ISD1820. Operating Voltage: DC 3V-5V. Loudspeaker: 8Ω, 0.5W. An easy to use 10 seconds of voice recording. High-quality, natural voice restored. Can be used as a propaganda module. With looping, jog playback, single-pass play function.
Reference: RBD-1021
Operating voltage: 2.5V-5.5V, recommended 5V Speaker Load: 2-8 Ohms Input and Output Connectors: Pins on 0.2" centers Size: 24 x 23 x 105 mm (L x W x H) Net weight: 3g
Reference: RBD-2693
Compact 5cm speaker for integrating audio into various projects like radios, amplifiers, and robots. 8Ω impedance and 0.5W power handling for compatibility with common audio circuits. Lightweight and space-saving design for versatile integration.
Reference: RBD-3199
The ESP8266 Infrared Wi-Fi Module is an all-in-one solution for integrating Wi-Fi and infrared communication into your IoT projects. Featuring the ESP-12F chip, this module supports NEC infrared command transmission and reception, making it ideal for controlling devices remotely and across rooms. Its compact size, Type-C interface, and easy-to-configure...
Reference: RBD-3334
The BJ-1K Industrial Alarm Buzzer is a high-performance siren designed for industrial and commercial applications. It emits a loud 110 dB alert sound, ensuring clear and reliable signaling in noisy environments. With voltage options DC 24V this alarm buzzer is versatile and compatible with various power systems. Its compact and durable flame-retardant PC...
Reference: RBD-3186
The ASR PRO Voice Recognition Module is a state-of-the-art offline speech recognition development board designed for seamless voice control applications. This module provides high accuracy, fast response, and flexible customizability with support for up to 300 user-defined voice commands. Perfect for standalone or integrated systems, the ASR PRO...
Reference: RBD-1772
Brand: Hi-Link
Small size package Local voice Customized voice wake-up/command words Universal Serial Port Protocol Support Chinese and English The number of command words reaches 150
Reference: RBD-2692
Breadboard-Friendly PCB Mount Mini Speaker - 8 Ohm 0.2W 1.1" (~30mm) diameter speaker with 8 Ohm impedance Perfect for breadboard-based audio projects Durable plastic casing, lightweight design Power handling: Nominal 0.1 Watts, Maximum 0.2 Watts
Reference: RBD-2065
Play standard mono or stereo MP3 files Control with buttons Serial communications protocol (JQ6500 Arduino Library available). Power supply 4.2V Speaker power 4 ohms / 3 watts
Reference: RBD-2232
Working mode: Class D Operating voltage: DC18V to DC24V Rated output power: 100W + 2 x 50W Quiescent current: 60mA Work efficiency: 90%
Reference: RBD-0981
Low power device. DTMF decoder chip. Band-split filter. Digital decoding functions. Modem interfaces. Mobile radios.
Reference: RBD-2694
Incredibly thin (just over 4mm) 4cm speaker for adding sound to projects with severe space constraints. 8Ω impedance and 0.5W power handling for compatibility with low-power audio circuits. Ideal for applications like portable devices, greeting cards, or space-limited enclosures.
Reference: RBD-2218
Module package (with FLASH memory and peripheral circuits) have DIP16, DIP28, chip packaging has DIP18, SSOP20, and LQFP32 form. Built 13Bit/DA converter, and 12Bit/PWM output. PWM output can directly drive 0.5W/8Ω speakers, push-pull current abundant support DAC / PWM output of two ways. Support for loading WAV audio formats. USB download mode, support...
Reference: RBD-0990
Support any Chinese text, English text synthesis, and support for English mixed Support voice codec function, the user can use the chip for direct recording and playback Support speech recognition function, can support the recognition of 30 command words.
Reference: RBD-3618
The SU-03T is a compact, affordable, and highly capable offline voice recognition control module that enables serial communication-based voice control without relying on cloud services or internet connectivity. Ideal for smart home applications, small appliances, toys, lighting systems, and embedded voice-controlled devices. With support for up to 150...
Reference: RBD-2758
With this module you can easily measure sound with an analog pin on your Arduino or other microcontroller. The module has an automatic gain/amplification (ACG) of the microphone: The module amplifies sounds with a low volume more, and sounds with a higher volume less.
Reference: RBD-0241
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...
Reference: RBD-2635
High capacity (2200mAh) for extended runtime in your devices. 3.7V nominal voltage - compatible with a wide range of electronics. Compact 18650 cylindrical design (18mm x 65mm). Rechargeable lithium-ion battery for eco-friendly power. Note: This is a true capacity battery.
Reference: RBD-0323
Microcontroller ATmega328 (SMD) – Interface CH340G Operating Voltage: 5V Input Voltage (recommended): 7-12V Digital I / O Pins 14 (of which 6 provide PWM output) RoboticsBD Analog Input Pins: 6 A programming cable is included.
Reference: 0031
3 Types Available (Please select from option) 1. Male to Male 2. Male to Female 3. Female-Female
Reference: RBD-1013
Wide supply voltage ranges Low supply-current drain independent of supply voltage Common-mode input voltage range includes ground, allowing direct sensing near ground Low input bias and offset parameters Internal frequency compensation
Reference: RBD-1064
Size: 1.3 inch Resolution: 128 x 64 Controlling Chip: SSH1106 Driving Voltage: 3.3-5V Operating Temperature: -40~70 celsius Interface Type: IIC Light Color: Blue If you want to purchase White color 1.3 inch OLED display module click here
Reference: RBD-1753
Digital I2S interface with high precision 24-bit dataHigh signal to noise ratio is 61 dBAHigh sensitivity – 26 dBFSStable frequency response from 60 Hz to 15 kHzLow power consumption: low current consumption 1.4 mAHigh PSR: -75 dBFS
Reference: RBD-1361
Zener Voltage Range (V): 3.1 – 3.5 Reverse Leakage Current (μA): < 0.1 Storage Condition: -65 to 175°C
Reference: RBD-2568
The Arduino UNO R4 WiFi merges the RA4M1 microprocessor from Renesas with the ESP32-S3 from Espressif, creating an all-in-one tool for makers with enhanced processing power and a diverse array of new peripherals. With its built-in Wi-Fi® and Bluetooth® capabilities, the UNO R4 WiFi enables makers to venture into boundless creative possibilities....
Reference: 0031
3 Types Available (Please select from option) 1. Male to Male 2. Male to Female 3. Female-Female
Reference: RBD-0832
Power supply: 4.5V – 5.5V, 3.3V voltage regulator circuit board Positioning holes: 4 M2 screws positioning hole diameter of 2.2mm Control Interface: GND, VCC, MISO, MOSI, SCK, CS Size: 45 x 28mm Net weight: 6g
Reference: RBD-1605
Hold 2 standard 18650 batteries. Wire Length: 15 cm. Output: 7.2v. Dimension (Appro.) : 76 x 40 x 20 mm Weight: 12gm High-quality plastic material
Reference: RBD-2688
Assortment of 75 plastic gears for building and customizing gearboxes in robots, models, toys, and more. Includes various gear types like spur gears, crown gears, worm gears, and pulleys. Offers a wide range of sizes to meet diverse project requirements. Ideal for beginners and hobbyists for creating gear-driven mechanisms.
Reference: RBD-1153
135 quality jumper Color: red, orange, yellow, green, blue, purple, gray, brown, white. Box size: 165 × 55 × 10 (LxWxH) mm. 140 pcs of 22 AWG solid wires
Reference: RBD-2484
Brand: Arduino Official
The new Arduino UNO R4 development board comes in two versions: the UNO R4 WiFi and the UNO R4 Minima. It runs on the Renesas RA4M1 (Arm Cortex®-M4) processor with a clock speed of 48MHz, which provides a 3x increase over the UNO R3. In addition to that, the SRAM has been upgraded from 2kB to 32kB and the flash memory has been increased from 32kB to 256kB...
Reference: RBD-2562
The kit includes one pair of transmitter and receiver modules for increasing the communication distance. And the frequency is 433MHz. It is very popular for remote control systems, such as wireless doorbell, remote control rolling gates, smart car, smart home, etc.
