• Complete kit for beginners and prototyping projects
• Includes R3 board, sensors, modules, and various components
• Ideal for learning and experimenting with electronics
• Compatible with Arduino IDE

• Provides easy sensor and actuator connections to Arduino boards
• Supports I2C and UART interfaces (jumper selectable)
• Offers 13 digital pins, plus VCC and GND for power
• Compatible with Arduino Uno, Arduino Leonardo, and derivatives

• Main Chip: ETA9640
• Synchronous Boost Converter for efficient power conversion
• Linear Battery Charger for stable and safe charging
• Charging Port: Type C for modern connectivity

• Compact Design: Ideal for small projects with limited space.
• Versatile Power Options: Supports 5V, 3.3V, 12V, and other input voltages.
• Reliable Output: Provides a high signal when pressed and low when not.
• Simple Connection: Easy to integrate into various circuits and applications.

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

• Arduino IDE Support: Compatible with Arduino IDE 1.0+ (OSX / Windows / Linux)
• Flexible Power Options: Supports 5V via USB or 7-24V external power supply (Recommended 12V or lower)
• Built-in Voltage Regulator: 500mA 5V onboard regulator with automatic power selection

• Heating voltage: 5 ± 0.2V (AC direct current)
• Operating current: 5-10mA
• Detectable concentration range: PH0-14
• Test temperature range: 0-80 °C

• Dual-core ESP32 processor with Wi-Fi and Bluetooth capabilities.
• 4MB Flash Memory for efficient data storage and programming.
• Integrated battery management system with 500mA charging current.

• Powerful Processor: Equipped with an A20 ARM Cortex-A7 Dual-Core CPU for enhanced performance.
• Graphics Support: Integrated ARM Mali400MP2 GPU, compatible with OpenGL ES 2.0/1.1.
• Expandable Storage: Supports up to 64GB SD/MMC cards and 2TB SATA disks for large data storage.
• High-Speed Networking: Built-in 10/100/1000 Ethernet RJ45, with an option for USB WiFi dongle.

• 2mW output power for low-power applications
• Wire antenna for reliable signal transmission
• Operates on 2.4GHz Zigbee Mesh networking
• Supports point-to-multipoint and peer-to-peer networks

• Digitally programmable frequency and phase
• Supports sinusoidal, triangular, and square wave outputs
• Wide frequency range: 0 MHz to 12.5 MHz
• Low power consumption: 12.65 mW at 3V

• 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.

• 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

Specifications:

• System: ESP8266 in the form of the ESP-12F module
• Flash: 4MB
• Power supply: 3.3V or 5V from the USB port
• Built-in 2.4GHz 802.11 b/g/n WiFi communication
• WiFi modes: AP (Access Point), STA (Standalone), AP+STA
• Supported technologies: TKIP, WEP, CRC, CCMP, WPA/WPA2, WPS
• 11 GPIO pins
• 10 PWM outputs
• 1 analog input (ADC)
• Serial interfaces: UART, I2C, SPI, 1-Wire
• USB Type-C connector for programming and communication
• USB-UART converter on the CH340 chip
• PCB antenna built into the module
• Przysick Reset
• Goldpin raster: 2.54 mm
• Module dimensions: 34 x 25 mm
• Weight: 10 g

Package:

1x ESP8266 WEMOS D1 MINI ESP-12F Z USB-C

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

• Wide Input Voltage Range: 6V to 32V
• Output Voltage: Default 5V, automatically adjusts between 3V to 12V when fast charge is triggered.
• Output Power: 24W (5V, 3.4A; 9V, 2.5A; 12V, 2A)
• Conversion Efficiency: 90% to 97%