• Non-contact gesture detection with proximity sensing capabilities

• Measures distance range from 10 to 20 cm (4-8 inches)

• I2C interface for easy communication with microcontrollers

• Low power consumption, ideal for battery-operated devices

• 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

• Accurate temperature and humidity sensing
• I2C and one-wire bus communication
• Wide temperature measurement range (-40°C to 125°C)
• Compact and easy to integrate with Arduino

The AT89C2051 is a low-voltage, high-performance CMOS 8-bit microcontroller from Atmel, featuring 2KB of flash programmable and erasable read-only memory. This microcontroller is designed using high-density nonvolatile memory technology and is compatible with the industry-standard MCS-51 instruction set. It provides a highly flexible and cost-effective solution for many embedded control applications.

• Operating voltage: 3.5-5V DC
• Current rating: 20mA
• Speaker power: 8ohm/3W
• Supported sampling rate (kHz): 8/11.025/12/16/22.05/24/32/44.1/48

• Voltage Support: 3.3V and 5V
• Chipset: FT232RL
• Overcurrent Protection: 500mA self-reset fuse
• Communication Indicator: RXD/TXD transceiver indicator

• LCD Joystick Shield v2.0 with Nokia 5110 LCD screen
• SPI interface, maximizing I/O resource efficiency
• Includes a five-way joystick for human-computer interaction
• All analog and digital interfaces with pin leads for easy installation of other sensors/modules

• Pulse oximetry and heart rate monitoring solution
• Integrated ambient light cancellation and motion artifact resilience
• Red and IR LED for accurate measurements
• I2C interface with INT pin for easy communication

• High Power Output: Up to 1200W, ideal for high-power applications
• Step-Up Boost Converter: Converts 8-60V DC input to 12-80V DC output
• Adjustable Output: Voltage (12-80V) and Current (0.5-20A) are fully adjustable
• High Efficiency: Conversion efficiency up to 95%

The AT89S52 is a low-power, high-performance CMOS 8-bit microcontroller from Atmel, featuring 8K bytes of in-system programmable Flash memory. This microcontroller is designed for a wide range of applications, offering robust performance and flexibility. It includes several standard features that make it suitable for embedded control applications.

• On-board ISD1820 chip for voice recording
• Built-in microphone for direct recording
• Records up to 10 seconds of audio
• Natural voice quality with reduced distortion

• High Resolution: 240x320 resolution, 18-bit color (262,000 colors) for vibrant display.
• Compatible with 5V Logic: Works with 3.3V or 5V logic.
• Onboard LDO Regulator: Includes a 3.3V 300mA LDO regulator for stable power.
• LED Backlight: Equipped with 4 white LED backlights that are on by default, but can be controlled via a digital pin.

• 16-channel relay module for controlling multiple devices simultaneously.
• Works with 5V DC, ideal for Arduino and microcontroller projects.
• Low state voltage (0–0.5V) activates the relay, while a high state voltage (3.7–5V) deactivates it.
• Compact and durable design for versatile applications.

• Dual H-Bridge Motor Driver: Capable of driving two DC motors or a 4-wire two-phase stepper motor.
• Built-in TSD: Protects the motor from stalling, ensuring smooth operation.
• Ultra-Small Size: Ideal for assembly and use in compact projects like smart cars or robots.

• 16 characters by 2 lines black-on-green display.
• Uses the widely known HD44780 parallel interface chipset.
• Freely available interface code for easy integration.
• Blue backlight with white text for better visibility.

• Ideal for beginners and enthusiasts
• Includes components for 15 unique projects
• Learn Arduino basics and advanced programming
• Includes essential components like LEDs, resistors, jumper wires, and more