• ULN2003A Motor Driver Chip: Reliable and efficient stepper motor control.
• DC 5-12V Power Supply: Wide voltage range for flexible applications.
• 4-Way Signal Indicator: Indicates the signal direction for easy monitoring.
• Step Angle: 5.625 x 1 / 64, providing precise motion control.

• High Power Capacity: Max. allowable voltage up to 250VAC/110VDC.
• Compact Design: Small size suitable for high-density P.C. board mounting.
• Relay Compatibility: Can work with any brand relay.
• Indication LED: Provides relay status indication for easy monitoring.

Specifications:

• MOSFET Model: LR7843
• Voltage Rating: 30V
• Current Rating: 161A
• Control Signal Voltage: Compatible with 3V or 5V
• Module Size: 23mm x 16mm
• Screw Holes: 2 x 2mm diameter
• Hole Spacing: 8mm

Package:

1 Module

• Heating voltage: 5 ± 0.2V (AC direct current)
• Operating current: 5-10mA
• Detectable concentration range: PH0-14
• Test temperature range: 0-80 °C

• 2MP OV2640 camera sensor with night vision capabilities.
• 160-degree wide field of view for enhanced coverage.
• Compatible with ESP32-CAM, ESP-EYE, STM32 (F4/F7), and other IoT boards.
• CSI/DVP interface for seamless integration.

• USB to TTL Serial Converter for easy PC connection to serial devices
• Supports USB 1.1, 2.0, and 3.0 communication with full-speed data transfer
• 500mA self-healing fuse for added protection
• 3.3V and 5V power supply interfaces for different voltage systems

• 16 Button Matrix: Includes keys 0-9, #, *, and A-D, providing a wide range of input options.
• Easy Communication: Simple and direct communication with any microcontroller, perfect for Arduino projects.
• Compact Design: Space-efficient design ideal for embedded projects and prototyping.
• Durable Keys: High-quality switches for responsive performance.

• Wide temperature measurement range: -55°C to +125°C
• High accuracy of ±0.5°C for precise readings
• Operates on a low voltage of DC 3V to 5V
• Digital signal output with 9 to 12-bit resolution

• 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.

• 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).

• High-resolution 8x2 character display
• Wide operating temperature range: -20°C to +70°C
• Backlight for easy viewing in low light conditions
• Standard 5V operating voltage

• High output current of approximately 5A maximum
• Automatic charging voltage and current adjustment
• Suitable for various battery types: Lead Acid, Gel, Tubular, Lithium Ion, LiFePO4
• Adjustable battery cut-off for customized protection

• Compatible with ESP8266 D1 Mini Pro for Wi-Fi applications.
• Supports real-time clock (RTC) and SD card for data logging.
• Includes male and female pin headers for easy connections.
• Battery type CR1220 (Battery not included).

• Serial Baud Rate: Supports baud rates from 1200 to 460800bps.
• Working Frequency Band: Operates on 850/900/1800/1900 MHz.
• Control Mode: Uses AT commands (3GPP TS27.007).
• GPRS: Supports PPP connection and embedded TCP/IP protocol.

• Versatile Compatibility: Designed for use with the 8 Pin NRF24L01+ Wireless Module
• Onboard AMS1117-3.3 Chip: Provides a stable 3.3V output from 5V DC input
• Efficient Power Supply: Input Voltage of 5V DC and Output Voltage of 1.9~3.6V DC
• Low Current Consumption: Operating current of 12.3mA for low power consumption

• 10-segment LED bar graph with multi-color display (red, yellow, green, blue)
• Ideal for battery level and power indication
• Compact design with standard 2.54mm pin pitch
• Efficient power usage with low forward current