• Motor drive module comes with four L9110S chips
• Supports 4 DC motors or two 4-wire 2-phase stepper motors
• Supply voltage: 2.5V - 12V
• Maximum operating current: 0.8A

• Battery-Powered Smoke and Fire Alarm (Battery not included)
• Environmentally Friendly: No harmful radiation, smells, or risks
• Low Power Consumption: Sensor's service life of about 10 years
• Photoelectric Chamber: Ensures early detection of smoke from all directions

• Durable Material: Made from high-quality ABS plastic with a sleek Silver-Shadow design.
• Efficient Cooling: Equipped with a PWM fan for optimal heat dissipation and noise control.
• User-Friendly Design: Quick-release mechanism for easy installation and maintenance.
• Integrated Power Button: Provides one-touch power control for added convenience.

• High-precision TDS measurement for water quality testing.
• Compatible with Arduino and other microcontrollers for easy integration.
• Low power consumption with a working current of just 3-6mA.
• Wide measurement range from 0 to 1000ppm.

• High-performance microcontroller with dual-core Arm Cortex-M0+ running up to 133 MHz.
• Large memory capacity with 264KB on-chip SRAM and 2MB onboard QSPI Flash.
• Versatile connectivity with 26 GPIO pins, including 3 analogue inputs, 2 UARTs, 2 SPIs, 2 I2Cs, and 16 PWM channels.
• Flexible power input range from 1.8V to 5.5V DC, suitable for various applications.

• Non-contact gesture detection with proximity sensing capabilities
• Measures distance range from 10 to 20 cm (4-8 inches)
• I2C interface for easy communication with microcontrollers
• Low power consumption, ideal for battery-operated devices

• Supports CAN V2.0B Specification with data transfer rate up to 1 Mbyte/sec.
• Handles 0 to 8-byte data field with Standard Frame and Remote Control Frame.
• 5V DC power supply module with SPI interface protocol control.
• Includes 120-ohm resistance for impedance matching to ensure long-distance data transmission and prevent signal radiation.

• Converts DC 3-15V input to a stable -12V output
• High efficiency with minimal power loss
• Low static working current for energy efficiency
• Suitable for ADC, DAC, LCD power supply applications

• Operating voltage: DC12V (27A/12V battery x1)
• Operating Current: 10mA @ 12V 
• Radiated power: 10mw @ 12V
• Transmitting frequency: 315MHZ 
• Transmission distance :50-100M (Open field, the receiver sensitivity of -100dbm) 

• High-Precision Laser Sensor: Measures absolute distance up to 2 meters
• Compact Design: Small form factor for easy integration
• I2C Communication: Simplifies connection with microcontrollers
• Wide Voltage Compatibility: Works with 3V to 5V power supply

The AT89C2051 is a low-voltage, high-performance CMOS 8-bit microcontroller from Atmel, featuring 2KB of flash programmable and erasable read-only memory. This microcontroller is designed using high-density nonvolatile memory technology and is compatible with the industry-standard MCS-51 instruction set. It provides a highly flexible and cost-effective solution for many embedded control applications.

• 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).

• 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

• Wide supply voltage range: 3V to 5V
• Chip: X9C103S
• Compact PCB board size: 2.7 * 1.3 cm
• 10K span potentiometer for precise adjustments

• High-sensitivity microphone for capturing subtle sound changes
• Compatible with Arduino and other microcontroller platforms
• Analog output with threshold level output flip for flexibility
• Equipped with a power indicator and comparator output light for easy monitoring

• High Detection Range: Adjustable detection distance between 2m to 16m with the adapter plate or reference circuit.
• Low Power Consumption: Operating current of 50mA max. and typical average current of 2mA at 5% DC.
• Microwave Frequency: 10.525GHz helium emission frequency for efficient detection.
• High Sensitivity: Sensitivity up to -86dBm with 3Hz to 80Hz bandwidth.