• 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

• ARM Cortex-M0+ 32-bit CPU running at up to 48MHz
• 256KB Flash memory for program storage
• 32KB SRAM for data storage
• USB Type-C connectivity for easy interfacing and power

• Supports 802.11 b/g/n WiFi
• Wi-Fi Direct (P2P) & Soft-AP functionality
• Integrated TCP/IP protocol stack for easy internet communication
• Built-in Power Management with low standby consumption.

• LED Size: 5mm                                                                     
• Diode Color: IR / Infrared
• Lens Colour: Clear
• Wavelength: 940nm
• Transmission Modulation: 38kHz

• Built-in Antenna – Comes with an integrated antenna for GPS signal reception.
• Baud Rate – Default baud rate of 9600bps, without battery installed.
• Wide Power Supply Range – Operates between 3-5V, making it suitable for various setups.
• EEPROM Storage – Stores all settings and data, even when power is off.

• Wide Input Voltage Range: Supports input from 5V to 32V for versatile usage.
• Wide Output Voltage Range: Adjustable output from 1.25V to 35V.
• High Conversion Efficiency: With a built-in 4A MOSFET, it achieves up to 94% efficiency.
• High Switching Frequency: Operates at 400KHz for reduced ripple.

The PIC18F4550 is an ideal microcontroller for low power (nanoWatt) and connectivity applications. It features three serial ports: FS-USB (12Mbit/s), I²C™, and SPI™ (up to 10 Mbit/s), along with an asynchronous (LIN capable) serial port (EUSART). With large amounts of RAM for buffering and enhanced Flash program memory, this microcontroller is perfect for embedded control and monitoring applications that require periodic connection with a personal computer via USB for data upload/download and firmware updates.

Empower your IoT and electronics projects with the ESP32 Development Board. Featuring a 32bit dual-core 240MHz processor, this versatile board supports WiFi, Bluetooth, and fully integrates with the Arduino Programming IDE, making it ideal for a range of applications.

• Supply Voltage: 2.2V～3.6V
• Operating Temperature: -40°C～85°C
• Operating Current: 80mA
• Supports LWIP protocol and FreeRTOS
• Three Modes: AP, STA, and AP+STA
• Compatible with Lua programming
• Processor: 32bit dual-core 240 MHz Tensilica LX6
• SRAM: 520 KB, Flash: 16 MByte
• Wi-Fi Standards: FCC/CE/TELEC/KCC
• Wi-Fi Protocols: 802.11 b/g/n/d/e/i/k/r
• Bluetooth Protocols: BLEv4.2 BR/EDR
• Bluetooth Audio: CVSD and SBC
• Peripheral Interfaces: UART, SPI, I2S, ADC, DAC, I2C
• On-Chip Sensors: Hall Effect, Temperature
• Weight: 9g
• Size: 51.6mm x 28.5mm

• Input Voltage Range: 4V to 38V DC (up to 38V).
• Output Voltage Range: 1.25V to 36V DC (adjustable).
• Maximum Output Current: 5A.
• High efficiency of up to 96%.

• High-quality SIM808 module for GSM, GPRS, GPS, and Bluetooth communication
• Supports quad-band 850/900/1800/1900MHz for global compatibility
• Integrated GPS with A-GPS support for enhanced positioning
• AT command control for SMS, phone calls, GPRS, and GPS data

• 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).

• Premium Build: Made from high-quality aluminum alloy for durability and heat dissipation.
• Efficient Cooling: Passive cooling design with aluminum material for noise-free operation.
• Perfect Fit: Tailored specifically for Raspberry Pi 5, ensuring full access to ports.
• Compact and Lightweight: Weighs approximately 205g with a sleek, space-saving design.

• Adjustable output voltage from 12V to 35V
• High power output up to 150W with enhanced heat dissipation
• Efficient conversion with 94% efficiency
• Wide operating temperature range (-40~85°C)

• Supports HUB75 port full color module, including ICN2038 IC
• Supports static to 1/32S scan mode
• Control range: 768*128, with a maximum width of 1280 and height of 256
• Communication ports: Wi-Fi and U-Disk

• 3.2-inch 480x320 TFT LCD screen with high-quality image display and wide viewing angle.
• Equipped with SD card socket and SPIFLASH circuit for enhanced functionality.
• Compatible with Arduino UNO & MEGA 2560 development boards.
• Supports UTFT, UTFT_Buttons, and Utouch libraries for easy integration.

• Quad-band: 850/900/1800/1900MHz for global GSM network compatibility
• Connects to any global GSM network using a 2G SIM
• Voice calls: Make and receive calls using a headset or external speaker and microphone
• SMS: Send and receive SMS messages