The Ai-Thinker VC-02 Kit is a compact and cost-effective offline voice recognition development board, designed around the VC-02 module and compatible with the VC-01-Kit. It integrates the CH340C USB-to-serial chip, enabling easy debugging and firmware upgrades via USB. Powered by the US516P6 speech recognition chip, the VC-02 Kit supports up to 150 local offline voice commands without the need for internet connectivity. It runs on a 32-bit RISC core at 240MHz, with built-in DSP, floating-point unit (FPU), and FFT accelerator for efficient signal processing. Equipped with 242KB SRAM, 2MB flash, UART, I2C, DAC, PWM, and configurable GPIOs, the module provides versatile connectivity and expandability. Designed for smart home automation, voice-controlled appliances, toys, and lighting, the VC-02 Kit offers an easy-to-use, low-cost solution for offline voice interaction projects. Featured By RoboticsBD.
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No. of Channel: 4 Trigger Voltage: 5VDC Triode drive, increasing relay coil High impedance controller pin Pull-down circuit for the avoidance of malfunction Power supply indicator and Control indicator lamp Power supply and relay instructions, lit, the disconnect is off; The input signal, signal, common Terminal and start conducting; RoboticsBD Note:...
LU-ASR01 Intelligent Voice Recognition Module with 98% accuracy and up to 10 m recognition range. Supports 5 customizable wake-up words and up to 100 user-defined voice commands. No programming required — configured via Tianwen Block graphical software. Features 8 I/O ports, PWM, UART, and sensor support (DHT11 / DS18B20). Includes 3 W audio amplifier for...
D4184 N-channel MOSFET module with optoisolation for safe switching Low Rds(on) of 8.5mΩ for efficient power handling Supports 2.5V–20V logic input and 6–36V output switching voltage Handles up to 10A continuous current, 20A+ peak with PWM Compatible with 3.3V and 5V microcontrollers (Arduino, STM32, ESP32) Compact 35 × 16 × 14mm module ideal for...
WS2812B RGB LED 8-Bit Ring with individually addressable LEDs Features 8 WS2812 5050 RGB LEDs in a compact 32mm outer diameter circular board Constant current drive (~18mA per LED) for consistent brightness at 5V Requires a microcontroller with an 8MHz or faster processor for precise control Equipped with solder pads and mounting holes for easy integration
Directly plug antenna interface. I2C bus communication. Multi-capacitor combined filter. Blue LED power indicator. High sensitivity(low noise RF input amplifier). High power auto gains control AGC circuit.
On-board MAX485 chip, A low power consumption for the RS-485 communication, slew-rate limited transceiver. A low power consumption for the RS-485 communication Onboard then 5.08 (mm) pitch 2P terminal to facilitate RS-485 communication wiring. Slew-rate limited transceiver All pins of the chip have been lead to can be controlled through the...
AT24C256 I2C EEPROM memory module with 256Kb (32KB) storage capacity Supports I2C interface with easy integration for Arduino and other MCUs Onboard 8-pin IC socket for pluggable AT24C256 chip upgrades Includes address input pins and write-protect jumper for flexibility Wide operating voltage range up to 6.25V DC, robust temperature tolerance Compact...
ADS1115 16-bit 4-channel precision ADC module (Chinese chip version) for high-accuracy analog-to-digital conversion. Offers 16-bit resolution with low power consumption and wide supply voltage (2.0V–5.5V). Supports four single-ended or two differential input channels with built-in PGA. I2C-compatible interface with four selectable addresses for easy...
Voltage: 3-3.6V (recommended 3.3V) V. Maximum output power: +20dBm. Power-down mode current: 4.2uA. Operating Range: 1Km Antenna Gain (peak): 2Dbi. 2MB rate (Open area): 520m. 1MB rate (Open area): 750m. 250Kb rate (Open area): 1100m. It uses 2.4GHz global open ISM band, with license free. SPI interface facilitates the communication with MCU I/O port....
The perfect solution for breaking out the pins from Lua V3 Nodemcu. Lead-out all the IO ports of the ESP-12E development board Lead out the pins of 5V and 3.3V power supply Convenient to connect with peripheral modules Onboard 5V / 1A DC-DC step-down converter circuit Onboard power indicator With DC power jack 6-24V.
PWM Signal Generator with 0–150kHz frequency range and 0–100% duty cycle. Clear LCD display showing frequency and duty cycle in real-time. Simple pushbutton interface for quick setup and adjustments. Supports 3.3V–30V operation with TTL serial interface. Ideal for motor control, LED dimming, and PWM-based experiments. Compact panel-mount design for bench...
2 sine wave and 2 square wave output. AD9850: 0-40MHz. After the 20-30MHz frequency harmonics increases, the waveform will be less and less clean. Low-pass filter with 70MHz, so the waveform better than SN. Parallel and serial data input can be selected via a jumper.
Antenna Size : approx. 26 x 26 x 9 (LxWxH) mm. Module Size : approx. 26 x 36 x 4 (LxWxH) mm. Net weight : approx. 16 gm. Gross weight : approx. 17 gm. Mounting : approx. 3 mm. The default baud rate : 9600.
IC Chip: MAX3232 Operating Voltage: 3.3-5.5V It can be used to program STC MCU, NXP MCU, Renesas MCU, STM32 MCU, N+-2EC MCU Pre-assembled compact size board Suitable for use with most microcontrollers Operates up to 250 kbit/s
Dual-channel digital isolator module with iCoupler® technology Provides safe, reliable electrical isolation like an optocoupler Supports bidirectional logic level conversion between 3.3V and 5V systems High-speed data transmission with low power consumption Compact design ideal for embedded, industrial, and communication systems Excellent for...
No. of Channel: 4 Trigger Voltage: 5VDC Triode drive, increasing relay coil High impedance controller pin Pull-down circuit for the avoidance of malfunction Power supply indicator and Control indicator lamp Power supply and relay instructions, lit, the disconnect is off; The input signal, signal, common Terminal and start conducting; RoboticsBD Note:...
Built-in Flash: 32Mbit Power supply: 5V WiFi protocol: IEEE 802.11 b/g/n Peripheral interface: UART/GPIO/ADC/DAC/SDIO/PWM/I2C/I2S Logic level: 3.3V A high-quality USB cable is essential for this board to ensure sufficient current supply; otherwise, your board may not be recognized by the Windows Device Manager. Please avoid using mobile phone cables and...
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
For Standard LCD 16x2. Press here.For Standard LCD 16x2 with Male Header. Press hereFor Standard LCD 16x2 with Female Header. Press hereFor Standard LCD 16x2 with I2C adapter board soldered. Press here.For Standard LCD 16x2 with White Background. Press here.For Standard LCD 16x2 with Blue Background. Press here. Model: LCD1602 Interface: I2C Interface...
Channel: 8 channel Relay Operating Voltage: 5V One normally closed contact and one normally open contact Triode drive, increasing relay coil High impedance controller pin Pull-down circuit for the avoidance of malfunction Power supply indicator and Control indicator lamp Power supply and relay instructions, lit, the disconnect is offNote: Relay might be...
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),...
Setup Instructions: 1. Do not upload any code initially—the board we’ve provided already comes with default firmware preloaded. 2. To test the ESP32-CAM, first connect the camera ribbon cable to the board. (Important) 3. Insert an SD Card. (Important) 4. Use an MB programmer board and power the setup with a high-quality USB cable. (Important) 5. Then, on...
Adafruit ST25DV16K I2C RFID EEPROM breakout with 16Kb memory Works as ISO/IEC 15693 (13.56MHz) NFC Type 5 tag, readable by phones/tablets Reprogrammable via I2C – dynamically update tag data with a microcontroller Supports fast transfer mode between I2C and RF interfaces Includes STEMMA QT/Qwiic connectors for solder-free prototyping Long endurance: 1M...
High-Speed Printing Performance: Achieve up to 10x faster printing speeds (up to 600mm/s) without compromising print quality. Enhanced Strength & Toughness: Stronger than ABS, more impact-resistant than standard PLA, ideal for durable prints. Precision Under Pressure: Maintains dimensional accuracy and smooth finish at high speeds with minimal...
CJMCU-3247 current to voltage module for 0/4mA–20mA signal conversion Converts industrial current signals to adjustable voltage output (0–24V max) Operates on a wide supply voltage range of 7–30V DC Features low temperature drift (±100ppm/°C) for stable performance Ideal for process control, automation, and sensor interfacing Compact and reliable design...
Reyax RYLR998 LoRa® transceiver module for 868/915MHz communication Provides ultra-long range spread spectrum and high interference immunity Equipped with NUVOTON MCU and Semtech LoRa® engine for reliable performance Supports AT command control and built-in antenna with data encryption Features low power smart receiving mode for energy-efficient...
Taurus TGAM Brainwave Sensor Module Development Kit with EEG headband and Mindwave headset Captures and analyzes single-channel brainwave signals with precision Includes Bluetooth adapter for seamless wireless connectivity to devices Designed for biofeedback, cognitive research, and interactive control projects Not a medical device – intended for...
