Arduino Products

IOT Application 4 channel 5v Relay Arduino Shield Module Four Channel Expansion board

Relay Shield (ie 5V Quad Relay Module) is a small current signal control power equipment commonly used electronic module, enabling high-power single-chip control devices are widely used in SCM system to make smart home project; and can be directly plugged into the compatible the use of various types of motherboards, eliminating the patch cable troubles.
Module features are as follows:
1. Standard For Shield interfaces and shape
2. Can continue to stack other For  expansion boards
3. 3 M3 screw positioning holes for easy installation
4. High Drive (5V or 3.3V) normally open contact closure
5. Onboard relay indicator (red)
Special Note: When using the For UNO board connected to it, because UNO USB interface is extremely high, should avoid green terminals are shorted its shell.
Relay Shield Interface: (the last picture show)
Relay: sky- 5V DC relay , model HJR-4102-L-5V, which Relay1 behalf of the 1st relay , the other and so on.
Power Interface : 5V DC power interface
Indicator: four lights are red when the relay is driven high , the corresponding indicator will light up .
Relay Terminals: Terminal high-power , high-current high voltage can be connected to the device . The 1st foot ( i.e. NOx) is a normally open pin , NCx pin is normally closed , COMx is common, i.e., when the relay is not driven , NOx and COMx open between two pins , NCx and COMx connection ; When the relay (x) control signal pin is high drive relays , NOx and COMx connection open between NCx and COMx.

30A Dual H-bridge Monster Moto Shield VNH2SP30


  • Voltage max: 16V
  • Maximum current rating: 30 A
  • Practical Continuous Current: 14 A
  • Current sensing available to Arduino analog pin
  • MOSFET on-resistance: 19 mΩ (per leg)
  • Maximum PWM frequency: 20 kHz
  • Thermal Shutdown
  • Undervoltage and Overvoltage shutdown


Note: When using this board in extreme high-demand applications it may be necessary to improve thermal performance with a heat-sink or fan and to solder the wires directly to the board instead of using a screw terminal (in addition to the myriad other complications present in a high-current system) However, when using the board at currents up to 6A the chips will barely become noticeably warm.


Dccduino (Arduino Compatible) UNO with usb cable

The DCcduino Uno is a micro-controller board based on the ATmega328 and USB CH340 Serial Converter.These Chinese Uno R3 CH340 board differs from Italian Arduino UNO R3 boards in that it does not use the expensive FTDI USB-to-serial driver chip. Instead, it features the CH340 USB-to-serial converter chip which makes it low cost and 100% Arduino UNO R3 compatible board


Additionally, there are several extra sets of header connectors – some of which provide extra signals that are not easily accessible on the original board.

Main Changes:

  • Added two rows of the holes for the pins. Provides additional connections.
  • Added 3 rows of the holes for wiring.
  • Change the in-line package of ATMEGA328P to flat package.
  • ATmega16U2 Replaced with CH340G low cost USB Serial Chip



  • 1x Uno R3 Board with USB Cable – having CH340 USB Serial Converter chip on board
  • 1x USB Cable
  • Extra Male Headers (Supplied as un-soldered)

Ultimate 37 in 1 Sensor Modules Kit for Arduino & MCU

37 different modules for Arduino Compatible (list is given below) Best kit for learning Arduino Material: Circuit board Package Dimensions: 273*190*43mm Weight: 431g


1 x Small passive buzzer module KY-006 1 x 2-color LED module KY-011 1 x Hit sensor module KY-031 1 x Vibration switch module KY-002 1 x Photo resistor module KY-018 1 x Key switch module KY-004 1 x Tilt switch module KY-020 1 x 3-color full-color LED SMD modules KY-009 1 x Infrared emission sensor module KY-005 1 x 3-color LED module KY-016 1 x Mercury open optical module KY-017 1 x Yin Yi 2-color LED module 3MM KY-029 1 x Active buzzer module KY-012 1 x Temperature sensor module KY-013 1 x Automatic flashing colorful LED module KY-034 1 x Mini magnetic reed modules KY-021 1 x Hall magnetic sensor module KY-003 1 x Infrared sensor receiver module KY-022 1 x Class Bihor magnetic sensor KY-035 1 x Magic light cup module KY-027 1 x Rotary encoder module KY-040 1 x Optical broken module KY-010 1 x Detect the heartbeat module KY-039 1 x Reed module KY-025 1 x Obstacle avoidance sensor module KY-032 1 x Hunt sensor module KY-033 1 x Microphone sound sensor module KY-038 1 x Laser sensor module KY-008 1 x 5V relay module KY-019 1 x Temperature sensor module KY-001 1 x Temperature sensor module KY-028 1 x Linear magnetic Hall sensors KY-024 1 x Flame sensor module KY-026 1 x Sensitive microphone sensor module KY-037 1 x Temperature and humidity sensor module KY-015 1 x XY-axis joystick module KY-023 1 x Metal touch sensor module KY-036


Arduino UNO R3 with USB cable (Ecnomical)

Description: This is the new Arduino Uno R3. In addition to all the features of the previous board, the Uno now uses an ATmega16U2 instead of the 8U2 found on the Uno (or the FTDI found on previous generations). This allows for faster transfer rates and more memory. No drivers needed for Linux or Mac (inf file for Windows is needed and included in the Arduino IDE), and the ability to have the Uno show up as a keyboard, mouse, joystick, etc.

The Uno R3 also adds SDA and SCL pins next to the AREF. In addition, there are two new pins placed near the RESET pin. One is the IOREF that allow the shields to adapt to the voltage provided from the board. The other is a not connected and is reserved for future purposes. The Uno R3 works with all existing shields but can adapt to new shields which use these additional pins.

Arduino is an open-source physical computing platform based on a simple i/o board and a development environment that implements the Processing/Wiring language. Arduino can be used to develop stand-alone interactive objects or can be connected to software on your computer (e.g. Flash, Processing, MaxMSP). The open-source IDE can be downloaded for free (currently for Mac OS X, Windows, and Linux).

Note: The Arduino Uno R3 requires the Arduino 1.0 drivers folder in order to install properly on some computers. We have tested and confirmed that the R3 can be programmed in older versions of the IDE. However, the first time using the R3 on a new computer, you will need to have Arduino 1.0 installed on that machine.  If you are interested in reading more about the changes to the IDE, check out the official Arduino 1.0 Release notes!

Not sure which Arduino or Arduino-compatible board is right for you? Check out " Arduino Buying Guide "!


  • ATmega328 microcontroller
  • Input voltage - 7-12V
  • 14 Digital I/O Pins (6 PWM outputs)
  • 6 Analog Inputs
  • 32k Flash Memory
  • 16Mhz Clock Speed


Multi-function Shield for Arduino UNO 2560 Leonardo

Compatible with arduino uno 2560 leonardo
4 LED indicator
DS18B20 temperature sensor
LM35 temperature sensor
3296 adjustable potentiometer
4-digits digital counter
Three separate buttons, a reset button
Wireless bluetooth interface
Servo interface
Infrared detection Interface

Document link:

Package Included:
1 X Multi-function Shield

Arduino Nano V3.0 (Economy)

The Arduino Nano is a small, complete, and breadboard-friendly board based on the ATmega328. It has more or less the same functionality of the Arduino Duemilanove, but in a different package. It lacks only a DC power jack, and works with a Mini-B USB cable instead of a standard one.

In the Arduino Nano V3.0 (Economy) it use CP2102 USB to TTL chip Instead of FTDI.

Microcontroller: ATmega328 
Operating Voltage (logic level) 5 V 
Input Voltage (recommended) 7-12 V 
Input Voltage (limits) 6-20 V 
Digital I/O Pins 14 (of which 6 provide PWM output) 
Analog Input Pins 8 
DC Current per I/O Pin 40 mA 
Flash Memory 32 KB of which 2 KB used by bootloader 
Clock Speed 16 MHz 
Dimensions 0.73 x 1.70 inch

Arduino USB-SD MP3 Shield

This shield is more powerful and flexible. It supports both wave and mp3 format. Both SD card and U-disk are supported directly. Also there is an on-board 64Mbit flash which could store music files.There is a standard 3.5mm headset jacket on the shield. You could connect with a standard earphone. We also integrate an audio amplifier on the shield. You could

There is a standard 3.5mm headset jacket on the shield. You could connect with a standard earphone. We also integrate an audio amplifier on the shield. You could connect loudspeaker directly.


  • Plug in and play for Arduino
  • Control by Serial UART interface or keys onboard.
  • Directly drive 32ohm headset.
  • On-board Audio Amplifier to drive 3W/4Ω external loudspeaker.
  • 32 levels adjustable volume.
  • Support FAT16/FAT32 file system.
  • Support both SD/SDHC card and U-Disk.
  • On board 64MBit SPI-FLASH.
  • Support copying audio files from SD card or U-Disk to SPI-FLASH.
  • Supporting Sleep Mode.
  • Support 16K~320Kbps MP3 files and 8K~44.1KHz sampling rate WAV files (SPI-FLASH only supports MP3 format)


Plug in and play.



Product list

  • Arduino MP3 Shield x1

Note: SD card or U-disk is not contained in the product list.


LilyPad 328 Board for Cloths Arduino Main Board 5V 16M ATmega328P

5V 16M ATmega328P for Arduino LilyPad 328 Main Board


The Arduino Compatible LilyPad is a microcontroller board designed for wearables and e-textiles. It can be sewn to fabric and similarly mounted power supplies, sensors and actuators with conductive thread. The board is based on the ATmega328 with the Arduino bootloader. The main board has a minimum number of external components to keep it as small (and as simple) as possible. The latest version supports automatic reset for even easier programming. The back side of the LilyPad is completely flat. It uses a surface mount programming connector, which keep the header from poking through.

Microcontroller: ATmega328P
Operating voltage: 2.7V ~ 5.5V (recommended 5V)
Input voltage: 2.7V ~ 5.5V (recommended 5V)
Digital I/O pins: 14 (of which 6 provide PWM output)
Analog input pins: 6
DC current per I/O pin: 40mA
Flash memory: 16KB (of which 2KB used by bootloader)
EEPROM: 512bytes
Clock speed: 16MHz


Don't power the LilyPad Arduino with more than 5.5V, or plug the power in backwards: you'll kill it.

Package included:
1 x Arduino compatible LilyPad ATmega328P

2.8 inch 240X320 TFT LCD Display Screen Shield for Arduino

2.8 inch TFT LCD Display Screen with Colorful Touch Screen Module 240X320 for Arduino

LCD screen size:2.8 inch
Visual angle: 120°
LCD driver chip:ILI9325 
Logic level:2.8V-3.3V 
Data interface:8 bit和16 bus interface
Shield mode:8 bit bus mode
Supply voltage:DC 5V
Touch control board 
White backlit

Parameter                        Specification                Unit    
Module size                     H/W/D 81×53×15               mm 
Effective area                    W/H 43.2×57.6               mm  
Resolution ratio                  W/H 240×320                 Dot 
LCD color                             RGB
Pixel                             W/H 0.18×0.18               mm 
LCD type                    TFT              

Package Included:
1 X 2.8 inch TFT LCD Screen Display Touch Screen



Dimensions (cm) 10.2 x 5.5 x 2
Weight (kg) 0.045

Free Shipping To buy Arduino MEGA Prototype Shield ProtoShield V3 Expansion Board with Mini Bread Board


MEGA ProtoShield V3 Prototype Shield Gold PCB processing technology, motherboards, little gold square cushion separating, welding parts less demanding. SOP28 SMD segment bundle to be more helpful hardware aficionados won't be straightforwardly embedded bound parts. The board can not just get MEGA consistent attachment controller, straightforwardly bound to the above parts to finish an assortment of model circuit, you can glue Mini breadboard, through the 7-shading jumper to finish an assortment of circuit try, board coordinated power marker and status lights, and reset catches, simple to learn MEGA favored model controller extension board. Full Compatible with Mega ATmega.

Packing include:

1 x Arduino MEGA Prototype Shield ProtoShield V3 Expansion Board with Mini Bread Board

Arduino Pro Mini 328 - 3.3V/8MHz

You need to wedge an Arduino into a really tiny spot? Simple - just use a SMD '328 IC. Oh... you want a reset, and voltage regulator too? Why didn't you say so!

Try this - the super-flat SparkFun Arduino Pro Mini, featuring a ATMega328 at 8MHz on 3.3V. Mind you, there's no headers and USB interface - you have to wire it up yourself, and have an offboard USB-serial cable to program it with!


  • ATmega328 running at 8MHz with external resonator (0.5% tolerance)
  • Low-voltage board needs no interfacing circuitry to popular 3.3V devices and modules (GPS, accelerometers, sensors, etc)
  • USB connection off board
  • Weighs less than 2 grams!
  • Supports auto-reset
  • 3.3V regulator
  • Max 150mA output
  • Over current protected
  • DC input 3.3V up to 12V
  • On board Power and Status LEDs
  • Analog Pins: 8
  • Digital I/Os: 14

Note: Unlike most other Arduino development boards, this one has the USB connection is off board.