AI-Thinker NodeMCU VC-02 Offline Speech Recognition Module
- All GPIOs can be configured as external interrupt input and wake-up source
- One full-duplex UART with a maximum rate of 3Mbps
- Support I2C， DAC， PWM, and multiple interfaces
- Built-in 242KB high-speed SRAM
- Built-in 2MB FLASH
- Support dual-channel DAC output
- 32bit RISC core, running at 240MHz
- Support DSP instruction set and FPU floating point operation unit
Arduino Mega 2560 R3 with USB Cable
- microcontroller board based on theATmega1280
- 54 digital input/output pins (of which 14 can be used as PWM outputs), 16 analog inputs, 4UARTs(hardware serial ports),
- 16MHzcrystal oscillator
- USB connection
- an ICSP header
- reset button
Arduino Nano with USB Cable
- ATmega328P Microcontroller is from 8-bit AVR family
- Operating voltage is 5V
- Input voltage (Vin) is 7V to 12V
- Input/Output Pins are 22
- Analog i/p pins are 6 from A0 to A5
- Digital pins are 14
- Power consumption is 19 mA
- I/O pins DC Current is 40 mA
- Flash memory is 32 KB
- SRAM is 2 KB
- EEPROM is 1 KB
- CLK speed is 16 MHz
- Weight-7g
- Size of the printed circuit board is 18 X 45mm
- Supports three communications like SPI, IIC, & USART
Arduino UNO R3 with USB Cable
- 14 digital I/O pins (six of which provide PWM output)
- 3 V supply generated by an on-board regulator
- Six analog input pins
- 32 KB of flash memory
- Can supply 40 mA of DC current per pin
- 16 MHz clock speed
ESP32 Development Board for IoT Projects
- WiFi and Bluetooth Integration: The ESP32 provides both wireless internet connectivity and Bluetooth communication, offering versatile application possibilities.
- High Processing Capacity: Dual-core processor and ample memory capacity allow you to efficiently manage complex projects.
- Flexible Programming Support: Compatible with popular programming languages such as Arduino IDE, MicroPython, and ESP-IDF, enabling you to program your projects the way you want.
- Wide Range of Applications: Ideal for IoT projects, automation systems, sensor networks, and more.
- Easy Integration: The 30-pin design allows for quick setup and development of your projects.
NodeMCU ESP8266 Development Board
- Microcontroller: Tensilica 32-bit RISC CPU Xtensa LX106
- Operating Voltage: 3.3V
- Input Voltage: 7-12V
- Digital I/O Pins (DIO): 16
- Analog Input Pins (ADC): 1
- UARTs: 1
- SPIs: 1
- I2Cs: 1
- Flash Memory: 4 MB
- SRAM: 64 KB
- Clock Speed: 80 MHz
- USB-TTL based on CP2102 is included onboard, Enabling Plug n Play
- PCB Antenna
- Small Sized module to fit smartly inside your IoT projects
STM32 Blue Pill Development Board STM32F103C8T6
- Model : STM32F103C8T6
- Work Frequency / Clock : 72MHZ
- Length x Width : 53 x 22 mm
- Connector Type : Female/Jack
- Number of Pins : 40
- Application : PCB, R & D
- Storage resources : 64K Byte Flash, 20KByte
- SRAM Interface Resources : 2x SPI, 3x USART, 2x I2C, 1x CAN, 37x I / O ports
USB Host Shield for Arduino
- Arduino USB Host Shield allows you to connect a USB device to your Arduino board
- The board is based on the MAX3421 chip and works with the SPI pins on the Arduino
- Host Shield takes its power from the ‘Vin’ pin on your Arduino
- Power from that pin is regulated to both 5V and 3.3V on the shield
