• Low Power Consumption: Operates on a supply voltage of 2.4V-3.6V, typically 3.0V, and consumes only 0.12mA of current.
• Wide Measuring Range: Measures light intensity from 1lx to 65535lx.
• I2C Communication: Uses I2C bus for data transmission, making it easy to integrate with microcontrollers.
• High Accuracy: Offers ±20% accuracy in light measurements.

• 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

• 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

• Wide Detection Range: 120°/180° detection angle with a range of up to 12 meters (± 2m)
• Adjustable Settings: Ambient light sensitivity and time-delay (5 seconds to 12 minutes) can be adjusted
• High Load Capacity: Suitable for 500W resistive load (e.g., incandescent lamps) and 150W inductive load (e.g., LED, energy-saving lamps)
• Weatherproof Design: IP44 rated, ideal for both indoor and outdoor use

• Operating Voltage: 3.3V to 5V DC
• Operating Current: 15mA
• LED Indicators: Output and power status LEDs
• Based on LM393: Easy to integrate with microcontrollers

• 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 humidity sensor with ±3% RH accuracy.
• Temperature measurement with ±0.4°C accuracy.
• Wide operating range from 0% to 100% RH and -40°C to +125°C.
• Low power consumption with 150 μA active current and 60 nA standby current.

The Dual USB 5V 2.1A Power Bank Charger Circuit Board is a reliable and efficient module for DIY portable power supply projects. Featuring double USB output and step-up board functionality, it provides safe and intelligent charging for your devices.

• Output Voltage: 5V 2.1A
• Input Voltage: 3.2V-4.2V
• Safe Design: Overcharge, overdischarge, and short circuit protection
• Intelligent Output: Stops charging when equipment is fully charged
• Wide Operating Temperature Range: -20 to +50°C
• Highlight LED Lamp: Easily activated by double-clicking the power key
• Electricity Quantity Display: 4-class LED light display

• 12-bit Resolution: Provides high precision for analog-to-digital conversion.
• I2C Interface: Simple and efficient communication with microcontrollers.
• Multiple Input Channels: Supports 4 Single-Ended or 2 Differential Inputs, allowing versatile sensor connections.
• Adjustable Gain: Programmable Gain Amplifier with multiple input voltage ranges for flexible use.

• Accurate Liquid Level Detection with 48mm depth
• Wide Voltage Compatibility from 2.0V to 5.0V
• Analog Output for smooth data processing
• Compact Design with 2.0mm mounting holes

• Non-Contact Switching: Detects magnetic fields without physical contact.
• Voltage Compatibility: Operates at DC 5V, making it ideal for microcontroller projects.
• KY-003 Model: Designed for magnetic, speed, and capacitance induction applications.
• Arduino Compatible: Perfect for DIY electronics and robotics projects.

• 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

• Detects conductance of skin
• Includes finger straps for electrodes
• Compatible with 3.3V and 5V systems
• Compact and lightweight design

Specifications:

• Maximum Output Power: 47.5W
• Output Ports:
  • Port 1: 12V 1.5A
  • Port 2: 12V 1.5A
  • Port 3: 9V 2A
  • Port 4: 5V 2A
• Input Power: 12.6V-13.0V (2A-5A)
• Battery:
  • Type: 3S LiPo 18650 Battery
  • Input Voltage: 11.1V
  • Full Charge Voltage: 12.6V
  • Low Voltage Cutoff: 10.5V
• Voltage Tolerance: ±0.05V
• Component Type: All SMD Components
• Output Accuracy: 99%

Package:

1x Mini Router ONU UPS Board Module 40W V2.6 

• Non-contact temperature measurement
• Wide target temperature range: -40°C ~ 115°C
• High resolution of 0.02°C
• Low power consumption with 3V to 5V operating voltage

• Easy Interface: Simple integration with the WeMos D1 mini for SD card operations.
• SPI Communication: Uses the SPI interface for communication between the WeMos D1 mini and the SD card.
• Compact Design: Designed specifically for the WeMos D1 mini, making it small and efficient for space-constrained projects.
• Wide Compatibility: Compatible with various microSD cards for data storage and retrieval.