Specifications:

• Fixed Output Voltage: 3.3V ± 4%
• Input Voltage Range: 1.8V - 5V
• Continuous Output Current: Max 100mA
• Peak Output Current: Max 150mA (short duration)
• Operating Frequency: 1.2MHz
• Protection: Short-Circuit Protection
• No Load Input Current: 0.65mA
• Pin Pitch: 2.54mm (suitable for Breadboard and MCU Development Boards)
• Dimensions: 11mm x 7.62mm x 4.5mm (excluding pins)
• Weight: Approximately 0.5g

Package:

1x mini 2 in 1 DC DC Step-Down & Step-Up Converter 1.8V-5V to 3.3V Power Wifi ESP8266 HC-05 CE1101 LED Module

• Wide Input Voltage Range: Accepts input from 4V to 40V DC.
• Adjustable Output Voltage: Provides an adjustable output range of 1.25V to 37V DC.
• Current Output: Delivers a maximum output current of 2A.
• Digital Voltmeter: Equipped with an LED digital voltmeter showing voltage from 0 to 40V, with an error of only 0.1V.

• Waterproof and durable for outdoor use
• Operates at a DC 5V voltage with low power consumption
• Capable of measuring distances from 25cm to 4.5m
• Acoustic emission frequency of 40kHz for accurate distance detection

• Integrated Cold Junction Compensation: Ensures accurate temperature measurement with built-in cold junction compensation.
• High-Resolution Output: Provides 12-bit resolution, allowing temperature readings from 0°C to 1024°C with a 0.25°C resolution.
• Thermocouple Break Detection: The module includes a circuit to detect thermocouple breaks, ensuring reliable operation.
• K-Type Thermocouple: Compatible with a K-type thermocouple, ideal for high-temperature measurements.

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 

• 802.11 b/g/n Wi-Fi protocol
• 2.4 GHz frequency, supports WPA/WPA2 encryption
• Ultra-compact size: 11.5mm x 11.5mm
• Integrated 10-bit ADC and TCP/IP protocol stack

• 2-digit 7-segment LED display with red illumination for clear visibility
• Common Anode (C.A.) configuration for ease of integration into electronic circuits
• Brightness of 1.0 mcd @ 10mA, offering good visibility even in low-light environments
• Right-hand side decimal point location, ideal for numerical displays and counters

The DHT11 Digital Temperature Humidity Sensor Module is a reliable and easy-to-use sensor for measuring temperature and humidity. With an operating voltage of 3.5V to 5.5V, it provides accurate data output over a wide range.

• Operating Voltage: 3.5V to 5.5V
• Operating Current: 0.3mA (measuring), 60uA (standby)
• Output: Serial data
• Temperature Range: 0°C to 50°C
• Humidity Range: 20% to 90%
• Resolution: 16-bit for both temperature and humidity
• Accuracy: ±1°C and ±1%

• 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.

✔ High Precision Measurement – Onboard precision micro current transformer for accurate current sensing
✔ Op-Amp Circuit Board – Provides accurate signal sampling and appropriate compensation
✔ Adjustable Output – The analog output corresponding to current can be easily adjusted
✔ Wide Working Voltage – Operates within a range of DC 5-30V for versatile

• 3 USB Expansion Ports: Onboard 3 USB expansion ports, compatible with USB 2.0/1.1 for data transmission.
• RTL8152B Ethernet Chip: Features an RJ45 network port with 10/100M adaptive Ethernet connectivity.
• Multiple Indicators: Includes power (PWR), network port status (ACT), and USB expansion interface status (D1~D3).

• 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

• Compact Design: Ideal for DIY projects and educational purposes
• 3 LED Colors: Red, Yellow, and Green for traffic signal simulation
• Wide Compatibility: Works with both 3.3V and 5V power supply
• Independent Control: Each LED can be controlled separately

• Brand: u-blox
• Model: NEO-6M
• Update Rate: 10Hz
• Built-In Antenna: 25 x 25 x 4mm ceramic patch antenna

The 5V 4-Channel Relay Module is ideal for controlling multiple devices with a single microcontroller. With a maximum output of DC 30V/10A and AC 250V/10A, it ensures reliable switching and robust performance for various projects.

• Input Voltage Range: DC 4.5V to 24V.
• Adjustable Output Voltage: From 0.8V to 17V with fixed voltages at 1.8V, 2.5V, 3.3V, 5V, 9V, and 12V.
• Output Current: Up to 3A (max), with a tested output of 1.5A at 12V input.
• High Efficiency: Up to 97.5%