• High-precision magnetic field sensing
• Atmospheric pressure measurement with BMP180 sensor
• Wide pressure range: 300-1100hPa
• Standard IIC communication protocol for easy integration

Specifications:

• Protocols: Bluetooth low energy 5.0
• Type: Wireless MCU
• Features: LE 1M PHY
• Peripherals: 12-bit ADC 8-channel, 2 SPI, 2 UART, 4 timers, I2C
• Rating: Catalog
• Flash memory (kByte): 256
• RAM (kByte): 8
• Number of GPIOs: 23
• Security: Cryptographic acceleration, Debug security, Device identity, Software IP protection
• Sensitivity (best) (dBm): -94
• Operating temperature range (°C)    -40 to 85

Package:

1x HC-08 Android iOS BLE 4.0 Bluetooth Module for arduino CC2540 CC2541 BLE Serial Wireless Module Compatible HM-10 HM-11

Specifications:

• Multi-function mini boost module
• Basic parameters
• The output voltage can be set to 5V/8V/9V/12V, the default is 12V
• Input voltage range: 2.5V~VOUT-0.5V
• Output performance: Take 3.7V lithium battery input as an example, it can output 5V1.2A, 8V0.7A, 9V0.6A, 12V0.5A. Make sure that the input current and output current do not exceed 1.5A.

Voltage setting description:
The front side of the PCB can be seen with the words A and B. The output voltage can be changed by using the soldering iron to change the pad on and off. In the following table, 0 means the pad is disconnected and 1 means the pad is connected.

• A   B   VOUT
• 0   0   5V
• 0   1   8V
• 1   0   9V
• 1   1   12V

Package:

1x 1.5A Multi-function Mini Boost Module

• Onboard AMS1117-3.3 chip for stable 3.3V output
• DC input voltage range: 4.75V to 12V
• Self-locking switch: Easily turn power on/off during testing
• Power indicator light: Indicates whether the power is on

• Solid-State Relay (SSR): Offers fast and reliable switching for controlling high-voltage systems using low-voltage signals.
• Compact Size: Small and lightweight, making it easy to integrate into various applications.
• Low Trigger Voltage: Operates with an input signal voltage range of 0-1.5V for relay ON and 2.5-5V for relay OFF.
• Low Current Consumption: Very low trigger current (2mA) and quiescent current (0mA) for energy-efficient operation.

• 800×480 high resolution for clear display
• Resistive touch control for precise input
• Supports Raspberry Pi, BB Black, and other mini-PCs
• Plug and play with Windows (driver-free)

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)

Specifications:

• Using the NTC thermistor sensor , good sensitivity
• The comparator output signal clean waveform is good , driving ability, than 15mA
• Adjust the temperature distribution bit detection threshold
• Working voltage 3.3V-5V
• The output format: Digital switching output (0 and 1)
• With bolt holes for easy installation
• Using a wide voltage LM393 comparator

Package:

1x Digital Thermal Temperature Sensor Module for Arduino (Thermistor)

• High-resolution 8x2 character display
• Wide operating temperature range: -20°C to +70°C
• Backlight for easy viewing in low light conditions
• Standard 5V operating voltage

• LED Size: 5mm                                                                     
• Diode Color: IR / Infrared
• Lens Colour: Clear
• Wavelength: 940nm
• Transmission Modulation: 38kHz

Discover the 1 Channel 5V Relay Module, perfect for controlling high voltage devices with microcontrollers in Bangladesh. With a rated coil voltage of 5V DC and maximum switching voltage of 250V AC and 30V DC, this relay module supports a nominal current of 10A at 125V AC and 30V DC.

• Multiple Communication Interfaces: Supports I2C, SPI, and HSU (High-Speed UART) for versatile connectivity.
• Wide Voltage Compatibility: I2C and UART support 3.3V ~ 24V TTL, while SPI operates with 3.3V TTL and on-board resistors for added safety.
• Built-in PCB Antenna: Provides a communication distance of 4cm to 6cm, making it convenient for near-field applications.
• Dual Operation Modes: Functions as both an NFC module and an RFID reader/writer.

• Open-Type Vibration Sensor for precise motion detection
• Comparator Output (0 and 1) for easy digital signal processing
• Wide Voltage Range (3V - 5V) supports various microcontrollers
• Strong Driving Ability of over 15mA output current

• Wide Input Range: Input voltage from 4.5V to 28V.
• Adjustable Output: Output voltage range from 0.8V to 20V.
• High Efficiency: Conversion efficiency up to 96%.
• Compact Size: Small size of 22mm * 17mm, perfect for DIY projects.

• 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 Dual USB 18650 Battery Charging Circuit Board is a versatile and essential component for DIY mobile power projects. It features dual USB outputs of 5V 1A and 2.1A, ensuring efficient and stable charging for various devices.

• Micro USB Input: 5V 1A
• USB Output: 5V 2.1A / 5V 1A (Dual USB interface)
• Charging Display: Intelligent digital display
• Batteries Type: Liquid lithium-ion batteries (18650)
• Product Size: 57mm x 28mm
• Screen Size: 27mm x 17mm
• Protection Functions: Overcharge, over-discharge, and overcurrent protection