• Adjustable voltage step-up converter for 18650 Li-ion batteries
• Supports both charging and discharging functions
• Compact PCB module design
• Ideal for DIY power bank projects

• PN532 Chipset: Most popular NFC/RFID chip, used in many smartphones and NFC devices.
• Versatile Functionality: Supports reading & writing NFC tags/cards, phone communication, and NFC tag emulation.
• Compatible with Arduino: Designed for easy integration with Arduino, Raspberry Pi, and other microcontrollers.
• Multiple Protocols Supported: Works with I2C, SPI, and UART communication interfaces.

• Wide Input Voltage Range: Accepts input from 4V to 40V DC.
• Adjustable Output Voltage: Provides an adjustable output range of 1.25V to 37V DC.
• Current Output: Delivers a maximum output current of 2A.
• Digital Voltmeter: Equipped with an LED digital voltmeter showing voltage from 0 to 40V, with an error of only 0.1V.

• Input Voltage: DC 8.5V to 48V
• Output Voltage: 10V to 50V (Continuously adjustable)
• Output Current: 0.2A to 8A (Constant Current Range)
• Conversion Efficiency: Up to 96%

• 3.2-inch Resistive Touch Display: Allows for intuitive touch control.
• High Resolution: Offers 320 x 240 resolution for clear visuals.
• Full Compatibility: Compatible with all versions of Raspberry Pi boards (4B/3B+).
• CE & RoHS Certified: Meets safety and environmental standards for quality assurance.

• 1.5-inch RGB OLED display with 128x128 resolution
• 65K high-color (16-bit) depth for vibrant visuals
• Supports both 4-wire SPI and 3-wire SPI interfaces
• Wide viewing angle of over 160°

• High sensitivity for low-light applications.
• Low voltage operation, ideal for embedded applications.
• Standard SCCB interface compatible with I2C communication.
• Supports various output formats: RGB565/555/444, YUV (4:2:2), and YCbCr (4:2:2).

• Supply voltage: 3.3 V to 5V
• Output can directly connected to controller
• TTL level output
• Maximum output current : 15mA

• USB interface: Full-speed 12 Mbits/s USB connection to host PC for seamless programming
• Real-time execution: Supports real-time debugging and execution of code
• MPLAB IDE compatible: Includes a free copy of MPLAB IDE for development
• Over-voltage/short circuit monitor: Built-in protection for safe operation

• Diameter: 0.5" (12.5mm)
• Thickness: 0.1" (2.5mm)
• Protocol: 800 KHz speed
• Power Supply: 5-9VDC (Runs at 3.5V with dimmed colors)

• Monitors ECG (Electrocardiogram) signals
• Measures heart rate and pulse with high accuracy
• Compact and easy to integrate with Arduino or other microcontrollers
• Low power consumption

• Double-Sided Design: Allows for more component placement and easier circuit routing.
• High-Quality PCB: Grade A construction for durability and reliable performance.
• Universal Compatibility: Ideal for DIY projects and prototyping.
• Easy to Use: Pre-printed dot pattern for easy soldering and circuit design.

• 3.5-inch TFT LCD display module with vibrant 18-bit color support.
• Compatible with Arduino Uno and other microcontroller boards.
• Integrated SD card slot for extended storage and project capabilities.
• High resolution of 320x480 pixels for clear visuals.

• Universal Design: Suitable for general-purpose prototyping and custom circuit design.
• Single-Sided: Offers a single-sided design, ideal for basic circuit construction.
• Glass Fiber FR-4 Material: Made from durable glass fiber FR-4 for longevity and stability.

The Arduino Uno R3 is a versatile and powerful microcontroller board based on the ATmega328P. It is designed for a wide range of applications, from simple projects to complex systems. This board is perfect for beginners and experienced developers alike, offering a robust platform for prototyping and development.

• Ambient Light Cancellation: Filters out ambient light interference for accurate readings
• High Sample Rate: Capable of fast data output
• Efficient Power Use: Low power consumption with a voltage range of 1.8V to 3.3V
• Compact Design: Small and lightweight for easy integration into various projects