Makeblock Neuron - Sound Sensor Block ST-MS Each SparkFun gator:bit can be

Each SparkFun gator:bit can be powered from 2

Perfboards

and some know how

and how to use gates in conjunction with the micro:bit via code

Makeblock Neuron - Sound Sensor Block ST-MS Each SparkFun gator:bit can beThe Sound Sensor detects sound intensity. A stronger sound increases the strength of the signal the block sends out. Features The magnetic design at the back of Neuron blocks makes you can simply place your gadget on the magnetic surface such as whiteboard The redesigned magnetic Pogo Pin connectors effectively prevent blocks from being connected incorrectly Support two ways to update firmware: wired and wireless Detects intensity of vibrations and