• PLL digital phase lock for stable performance
• 16-level digital volume adjustment
• Frequency range: 87.0-108.0MHz
• Operating voltage: 3-5V

Specifications:

• Multi-function mini boost module
• Basic parameters
• The output voltage can be set to 5V/8V/9V/12V, the default is 12V
• Input voltage range: 2.5V~VOUT-0.5V
• Output performance: Take 3.7V lithium battery input as an example, it can output 5V1.2A, 8V0.7A, 9V0.6A, 12V0.5A. Make sure that the input current and output current do not exceed 1.5A.

Voltage setting description:
The front side of the PCB can be seen with the words A and B. The output voltage can be changed by using the soldering iron to change the pad on and off. In the following table, 0 means the pad is disconnected and 1 means the pad is connected.

• A   B   VOUT
• 0   0   5V
• 0   1   8V
• 1   0   9V
• 1   1   12V

Package:

1x 1.5A Multi-function Mini Boost Module

• Reserved M3 mounting holes for easy fixing in small car models
• Compact size: 2.5cm x 1.9cm
• Ideal for collision detection in robots or car models
• Simple pin configuration for easy connections

The AT89S51 is a low-power, high-performance CMOS 8-bit microcontroller from Atmel’s 8051 family. This microcontroller is designed for a wide range of applications, offering robust performance and flexibility. It features 4KB of Flash programmable and erasable read-only memory (PEROM) and 128 bytes of RAM, making it suitable for various embedded systems.

• High Resolution: 240x320 resolution, 18-bit color (262,000 colors) for vibrant display.
• Compatible with 5V Logic: Works with 3.3V or 5V logic.
• Onboard LDO Regulator: Includes a 3.3V 300mA LDO regulator for stable power.
• LED Backlight: Equipped with 4 white LED backlights that are on by default, but can be controlled via a digital pin.

✔ High Precision Measurement – Onboard precision micro current transformer for accurate current sensing
✔ Op-Amp Circuit Board – Provides accurate signal sampling and appropriate compensation
✔ Adjustable Output – The analog output corresponding to current can be easily adjusted
✔ Wide Working Voltage – Operates within a range of DC 5-30V for versatile

• 802.11 b/g/n Wi-Fi protocol
• 2.4 GHz frequency, supports WPA/WPA2 encryption
• Ultra-compact size: 11.5mm x 11.5mm
• Integrated 10-bit ADC and TCP/IP protocol stack

• Durable Material: Made from high-quality ABS plastic for long-lasting protection
• Perfect Fit: Designed specifically for Raspberry Pi 4 Model B
• Efficient Cooling: Comes with ventilation holes for better heat dissipation

• Waterproof and durable for outdoor use
• Operates at a DC 5V voltage with low power consumption
• Capable of measuring distances from 25cm to 4.5m
• Acoustic emission frequency of 40kHz for accurate distance detection

• 128x128 resolution for clear display output
• TFT-LCD technology for vibrant colors and good contrast
• Ideal for compact applications requiring high-quality visuals
• Versatile design for various development boards

• High Efficiency: Maximum conversion efficiency of 95% (5V input, 3.3V output at ~200mA).
• Wide Voltage Range: Input voltage range from 4.75V to 23V, with a selectable output voltage from 1.0V to 17V.
• High Surge and Continuous Current: 3A surge current and 1.8A continuous rated current.
• Stable Performance: 340kHz switching frequency and minimal 30mV no-load output ripple.

• 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

• 25 RGB full-color LEDs with WS2812 chips.
• Ideal for creating vibrant lighting effects.
• Compatible with Arduino microcontroller platforms.
• Digital input for precise control.

• Compact Design: Shell-in-one structure for enhanced durability
• High Voltage Output: Capable of stepping up voltage to DC 200-400KV
• Efficient Current Handling: Input 4A and output 0.5A
• Polar Discharge Distance: Approximately 1.5 cm, beyond which damage may occur

• Provides easy sensor and actuator connections to Arduino boards
• Supports I2C and UART interfaces (jumper selectable)
• Offers 13 digital pins, plus VCC and GND for power
• Compatible with Arduino Uno, Arduino Leonardo, and derivatives

• Chipset: TI CC2530 chipset for reliable wireless communication.
• Voltage Range: DC 2.1V ~ 3.6V (recommended 3.3V for optimal performance).
• Transmission Distance: Up to 800 meters (with 3dBi antenna in open space).
• Antenna Interface: SMA interface for connecting antennas.