• 16-bit bidirectional I/O expansion for microcontrollers
• Supports I2C (MCP23017) up to 1.7 MHz and SPI (MCP23S17) up to 10 MHz
• Configurable interrupt system with INTA & INTB pins
• Three hardware address pins allow up to 8 devices on the same bus

• Relay Load Capacity: Supports both AC and DC with high capacity
• Operating Voltage: Works with 5V DC power supply
• High Current: Suitable for applications requiring up to 10A load
• Versatile: Can handle both AC (250V, 10A) and DC (30V, 10A) loads

• Compatibility: Designed specifically for ESP8266 ESP-01 WiFi module.
• Pin Spacing: 2.54mm (standard breadboard pitch) for easy integration with breadboards.
• Voltage Regulator: 3.3V onboard regulator for stable voltage supply.
• Output Voltage: Provides 3.3V for powering the ESP-01 module.

• L9110S-chip motor driver
• Supports driving two DC motors or a 4-wire 2-phase stepper motor
• Ultra-small PCB size for easy integration
• Fixed mounting holes with a 3mm diameter for secure installation

Key Features:

• Chip type: W5500
• Supports both 3.3V and 5V power supply
• Hardwired TCP/IP protocols: TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE
• 10BaseT/100BaseTX Ethernet PHY embedded
• Supports automatic response (full duplex/half duplex mode)
• Internal 32Kbytes memory for Tx/Rx buffers
• Supports sleep mode and wake on LAN
• 8 independent sockets running simultaneously
• SPI interface (SPI MODE 0, 3)

Enhance your electrical devices with the 2000W AC 220V SCR Electronic Voltage Regulator Module. This high-performance module is designed to regulate AC voltage from 50V to 220V, ensuring consistent and reliable power delivery. Made with durable metal and plastic materials, it supports a maximum power of 2000W. The module is lightweight, weighing only 41g, and comes with a convenient package weight of 51g. Ideal for various applications, this voltage regulator ensures your devices operate smoothly and efficiently.

• Regulates AC voltage from 50V to 220V
• Supports up to 2000W of power
• Made with durable metal and plastic materials
• Lightweight design at 41g
• Comes in a package weighing 51g

• High current capability, handling up to 30A peak and 14A continuous current
• Integrated over-current and thermal protection
• LED indicator for operational status
• PWM frequency of up to 20 kHz for smooth motor control

Specifications:

• Measures distance data in more than 8000 times/s
• 360 Degree Omnidirectional Laser Range Scanning
• 8000 times sample rate, the highest in the current economical LIDAR industry
• OPTMAG Original Design,prolong the life-span
• Configurable Scan Rate from 2-10Hz
• Ideal for Robot Navigation and Localization
• Plug and Play

Package:

1x Slamtec RPLIDAR A1 2D 360 degree 12 meters

• 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

• Support 12 Mbps full speed USB transmission and 1.5 Mbps low speed transmission, compatible with USB V2.0.
• Serial communication baud rate can support 300000/115200/57600/38400.
• The same chip can be configured for upper computer mode and lower computer mode.
• The USB port of the upper computer conforms to the standard HID protocol and does not need to install additional drivers.

• 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)

• Photosensitive Switch: Detects light levels for automatic switching.
• High Load Power: Supports AC 250V/10A and DC 30V/10A for various electrical applications.
• Compact Design: Easy to integrate into projects and systems.

• 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

• Input Voltage: DC 10-60V
• Max Output Current: 20A (Suggested 10A for long-term use, up to 450W)
• Max Power: 1200W
• Speed Regulation Type: Current regulation

• 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.

• Utilizes a 24-bit high precision HX711 A/D converter chip
• Includes an integrated 128 times programmable gain amplifier
• Supports two analog input channels
• Ideal for pressure and weighing sensor applications