USB SD MP3 Shield Board 32 Levels Adjustable Volume Compatible with Arduino <br /><br />Main Features:<br />● This is a upgrade version UNO R3 starter kit， add more components to achieve more features and experiment.<br />● You'll learn through building several creative projects.<br />● Start the basics of electronics， do more complex projects， the kit will help you control the physical world with sensor and actuators.<br /><br />Improved Version UNO R3 ATMEGA328P Shield<br />● Reserve USBAS download interface.<br />● This board can be used as smallest system board and USBASP download app.<br />● Serial port communication.<br />● With reserved pins， can connect with bread board and most pin plug module.<br />● Add two touch buttons， one high level trigger， one low level trigger.<br />● Add standard AT10 chip download interface， can use USBASP to download boot loader or hex program.<br /><br />    Specifications<br />General<br />	 Type: Internet of Things Starter Learning Kit                                                  <br />                        Suitable for: Arduino                                                  <br />                        Compatibility: Ardunio                                                	<br />Weight and Size<br />	 Product Weight: 0.405 kg                                                  <br />                        Package Weight: 0.505 kg                                                  <br />                        Product Size(L x W x H): 18 x 13 x 4 cm / 7.07 x 5.11 x 1.57 inches                                                  <br />                        Package Size(L x W x H): 20 x 15 x 5 cm / 7.86 x 5.90 x 1.97 inches                                                	<br /><br /><br /><br />                                            <br />Package<br />Contents<br />	1xImprovedVersionUNOR3Board<br />	1xI2CLCD1602Module<br />	<br />1xRFID-RC522KitModule<br />	1xDS1302ClockModule<br />	<br />1xVoiceSensor<br />	1xHumitureSensor<br />	<br />1xWaterLevelMeasurementModule<br />	30xJumperWire(MaletoMale)<br />	<br />1xBreadboard<br />	5xRedLED<br />	<br />5xYellowLED<br />	5xBlueLED<br />	<br />1xResistorPackage(1k10k220R)<br />	30xJumperWire(MaletoFemale)<br />	<br />1xPotentiometer<br />	1xActiveBuzzer<br />	<br />1xPassiveBuzzer<br />	1x74HC595Module<br />	<br />1xInfraredReceiver<br />	1xLM35TemperatureSensor<br />	<br />1xFlameSensor<br />	2xTiltSwitch<br />	<br />2xPhotoResistor<br />	1xButtonSwitch<br />	<br />1xRemoteController<br />	1xFourDigitSegmentDisplay<br />	<br />1x9VBatteryBuckle<br />	1xRGBModule<br />	<br />1x4x4KeypadModule<br />	1x8x8DotMatrixModule<br />	<br />1xStepperMotor<br />	1xULN2003Driver<br />	<br />1xServoSG90<br />	1xRelayModule<br />	<br />1xOneDigitSegmentDisplay<br />	1xJoystickPS2<br />	<br />4xButton<br />	1xSmallButton<br />	<br />1xUSBCable<br />	<br />	<br /><br />                       Product Safety Disclaimer: <br />We do not accept any responsibility or liability for misuse of this or any other product.  All our products are extensively tested to comply with rigorous and strict QC standards.  For certain products (e.g. toys， knives， etc.)， we recommend proper supervision as we cannot be held liable for misuse or accidents.<br /><br />                                                <br />