Multifunctional expansion board shield is a ideal started shield contatining a host of input output options. It had features for digital inputs through 3 switches, 4 ditial outputs in the form of leds. A 4 digit 7 segment display, a potentiometer, a buzzer and more.
4 On board leds
3 Micro switches + reset switch
Plug and play with arduino uno or mega
4 digit 7-segment led display module
4 x surface mount leds
1 x 10k adjustable precision potentiometer for trying adc experiments