• 16 Button Matrix: Includes keys 0-9, #, *, and A-D, providing a wide range of input options.
• Easy Communication: Simple and direct communication with any microcontroller, perfect for Arduino projects.
• Compact Design: Space-efficient design ideal for embedded projects and prototyping.
• Durable Keys: High-quality switches for responsive performance.

The ATtiny85 is a high-performance, low-power 8-bit AVR RISC-based microcontroller from Microchip. Featuring 8KB ISP flash memory, 512B EEPROM, and 512B SRAM, it includes 6 general purpose I/O lines, 32 working registers, and various timers and counters. Ideal for industrial and automotive applications, it operates between 2.7-5.5 volts and achieves up to 20 MIPS at 20 MHz.

Key Features:

• Memory: 8KB ISP flash, 512B EEPROM, 512B SRAM
• I/O Lines: 6 general purpose
• Timers: One 8-bit timer/counter with compare modes, one 8-bit high-speed timer/counter
• AD Converter: 4-channel 10-bit
• Operating Voltage: 2.7-5.5 volts
• Performance: Up to 20 MIPS at 20 MHz
• Debugging: debugWIRE for on-chip debugging
• Safety Applications: Suitable for IEC 61508 and ISO 26262 standards

• High sensitivity IR receiver
• Extremely sensitive to wavelengths between 760-1100nm
• Power supply indicator lamp
• Comparator output indicator lamp

The Arduino Uno R3 is a versatile and powerful microcontroller board based on the ATmega328P. It is designed for a wide range of applications, from simple projects to complex systems. This board is perfect for beginners and experienced developers alike, offering a robust platform for prototyping and development.

• I2C Interface: Enables easy communication with the WeMos D1 Mini.
• Wide Power Supply Range: Supports up to 15V DC motor power supply.
• High Current Output: 1.2A (average), 3.2A (peak) per channel.
• Motor Control Modes: Supports CW, CCW, short brake, and stop modes.

• 16-button keypad for microcontroller expansion
• 4x4 matrix layout for easy interfacing
• Durable PCB design for long-term use
• Compatible with Arduino and other MCUs

• 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.

• Condition: 100% Brand New with High Quality.
• Compact Size for easy integration.
• LM2596S Converter IC for efficient operation.
• Output Voltage Adjustment: Easily adjustable using a potentiometer.

• 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

• Onboard TTP229 Capacitive 16-Key Touch Sensing IC
• Supports 16 capacitive touch buttons for seamless touch control
• Onboard power indicator for status monitoring
• Adjustable output modes, key response, and power settings

• Brand new and high quality.
• L293D is a monolithic integrated, high voltage, high current, 4-channel driver.
• Can drive DC motors and power supplies of up to 36V with a maximum current of 600mA per channel.
• H-Bridge configuration allows voltage to be applied across a load in either direction, ideal for motors.

• 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

• Ultra-Low Standby Power Consumption: 90uA - 400uA
• Coverage Range: Up to 60 meters
• Built-In PCB Antenna
• Power Input: 3.6V - 6V DC (Cannot exceed 6V)

• Measures water flow accurately within a range of 0.3–6 L/min.
• Compact and lightweight design with durable construction.
• Operates on a wide voltage range (5~12 V) with low current consumption.
• Offers high precision with ±5% accuracy for flows of 0.3–3 L/min.

Specifications:

• Sensing Voltage Range: 0 V to 26 V
• Power Supply Voltage: 2.7 V to 5.5 V
• Offset Voltage: ±80 µV (max)
• Gain Error: 0.25% (max)
• Configurable Averaging Options: Yes
• Programmable Addresses: Four
• Alert and Warning Outputs: Programmable
• Reporting: Shunt and Bus Voltage

Package:

1x Module

• Dual-Port Independent Output for simultaneous charging
• Supports Multiple Fast Charging Protocols:
  • QC2.0, QC3.0, MTK PE1.1/2.0, Apple, Samsung AFC, Huawei FCP, Spreadtrum SFCP
• Wide Input Voltage Range: DC 6V - 30V