Arduino Uno Rev3 switchscience It has a buzzer and

It has a buzzer and three groups of GVS pins(P0/P1/P2) on board

Infrared Receiving Diode

24 toothed-wheel building block *3

build alarms

Radio feature on the micro:bit enables wireless communication between rero:micros

Arduino Uno Rev3 switchscience It has a buzzer andThe Arduino UNO is the best board to get started with electronics and coding. If this is your first experience tinkering with the platform, the UNO is the most robust board you can start playing with. The UNO is the most used and documented board of the whole Arduino family. Overview Arduino Uno is a microcontroller board based on the ATmega328P (datasheet). It has 14 digital input output pins (of which 6 can be used as PWM outputs), 6 analog inputs,