• Digital output for easy integration
• ABS material for durability
• Compatible with both 3.3V and 5V systems
• Detects carbon dioxide (CO2) in the range of 400~5000ppm

Discover our Multi Servo Tester with 3 channels, ideal for testing ECS consistency and speed control. Operating on a voltage range of DC 4.8-6V, this compact and lightweight tester is perfect for various electronic projects. The blue-colored device measures 48 x 42 x 17mm and ensures precise performance.

Key Features:

• 3-channel servo tester
• Voltage consumption: DC 4.8-6V
• Compact size: 48 x 42 x 17mm
• Lightweight: Net weight 7g, Package weight 13g
• Color: Blue

• WS2812 Chip: Integrated, addressable RGB LEDs.
• 5050 RGB LEDs: Full-color highlighting for vibrant lighting effects.
• 5V Operation: Works efficiently with a 5V power supply.

• Supports both 110V and 220V AC voltage
• Compatible with 3.3V/5V logic, making it ideal for Arduino and ESP-based projects
• Optocoupler isolation for improved safety and reliability
• Uses BTA16-600B TRIAC for efficient AC load control

• On-board micro-precision current transformer for accurate measurements
• Built-in sampling resistor for stable output
• Supports up to 5A AC current measurement with a corresponding 5mA analog output
• High precision with 0.2% linearity for accurate readings

The MQ-5 Gas Sensor Module is designed to detect natural gas and methane with high accuracy. Operating at 5V, this sensor provides both TTL digital and analog outputs, with a detection concentration range of 300-10000ppm. Ideal for environmental monitoring and safety systems.

Key Features:

• Gas Detection: Natural gas/Methane
• Detection Concentration: 300-10000ppm
• Input Voltage: DC 5V
• Power Consumption: 150mA
• Digital Output (DO): TTL 0 and 1 (0.1 and 5V)
• Analog Output (AO): 0.1-0.3V, max 4V at high concentration
• Chip Used: AT89S52
• Crystal: 11.0592MHZ
• Baud Rate: 9600

• Main Chip: ETA9640
• Synchronous Boost Converter for efficient power conversion
• Linear Battery Charger for stable and safe charging
• Charging Port: Type C for modern connectivity

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

• Multiple Sensors in One Board: Includes a gyroscope, accelerometer, compass, barometer, and thermometer for various applications.
• Compact Size: Small form factor of 1.5" x 0.9" makes it suitable for compact projects.
• I2C Communication: Uses I2C 7-bit addresses for easy integration with microcontrollers like Arduino.
• Wide Voltage Compatibility: Operates with both 3V and 5V input voltage for flexible usage.

• Control 16 PWM outputs using just two I2C pins
• Stackable up to 62 shields for a total of 992 PWM outputs
• Built-in PWM driver with clock, no need for continuous signals
• 5V compliant, allowing control from a 3.3V

• High-precision barometric pressure sensor for accurate air and water level detection
• Supports 3.3V-5V operation, making it compatible with Arduino and other microcontrollers
• 0-40KPa pressure range, ideal for liquid level and air pressure measurement
• Compact size (19x18mm) with a 2mm fixing hole for easy installation

• Transmission distance up to 8 meters
• Effective angle of 60 degrees
• 20,000 estimated usage cycles
• Arduino compatible

Improve your Arduino projects with our LM393 Speed Measuring Sensor Module. This module features a groove motor counter and RPM sensor for accurate rotational speed measurements.

• Operating voltage: 3.3V-5V
• Output: digital switch output (0 and 1)
• Good signal and waveform with strong driving ability (15mA+)
• Equipped with a fixed bolt hole for easy installation
• PCB size: 3.2 cm x 1.4 cm
• Uses LM393 wide voltage comparator
• Package includes: 1x Speed Measuring Sensor Module

Specifications:

• Channels: 3
• Frequency Range: Typically from 1 Hz to several kHz (check the specific module for exact range)
• Duty Cycle Range: 0% to 100%
• Output Type: Square and rectangular wave signals
• Power Supply: Usually 5V or 12V (verify the exact voltage required for your module)
• Control Interface: Typically includes knobs or digital inputs for adjusting frequency and duty cycle
• Output Voltage: Generally the same as the power supply voltage

Package:

1x Modue

The CP2102 USB to TTL UART Serial Converter is ideal for reliable and versatile communication between your USB and serial devices. Key features include:

• 3.3V and 5V dual power output.
• Self-recovery fuse for protection against short circuits.
• Compatible with 3.3V and 5V Arduino boards.
• Power, data reception, and data transmission indicator LEDs.
• 640 byte receive buffer and 512 byte transmit buffer.
• Supports baud rates from 300 bps to 1 Mbps.

• Efficient Charging: High-efficiency conversion up to 93%, ensuring quick charging
• Wide Input Range: Input voltage from 2.8V to 4.5V, ideal for 3.7V polymer lithium batteries
• Adaptive Output: Output current adapts to 5V 3A, 9V 2A, or 12V 2A based on the protocol
• Fast Charge Protocol Support: Supports QC2.0, QC3.0, Huawei FCP, DCP Protocols