The Arduino peripheral expansion board has multiple functions in one

Accessory Shield for Arduino Development, Several Accessories IN One BoardAccessory Shield OverviewAccessory Shield integrates common used accessories/components listed as follows :Joystick (5 directions)Adjustable potentiometerBuzzerRGB LEDTemperature sensor3-axis digital accelerometerHigh precision RTC0.96inch OLEDXBee interfaceFeaturesArduino standard interfaces, compatible with Arduino boards like Arduino UNO, Leonardo, NUCLEO, XNUCLEOEasy to use, comes with underlying function libraries for all of the onboard accessories, just call the related functionOnboard XBee interface, supports connecting XBee wireless modules for remote communicationWhat's on BoardArduino expansion headers : for connecting with an Arduino boardXBee connectors : connecting XBee wireless modules0.96inch OLED : 128¡Á64 resolutionRGB LED : 256¡Á256¡Á256 colorsBuzzer : controlled by PWM, capable of playing simple music10K adjustable potentiometerADXL345 : 3-axis digital accelerometer, measuring range up to ¡À16g