littleBits Sound Trigger

Use this Bit to control your circuits with sound. It’s a great way to make your inventions hands-free!

The sound trigger has a microphone that measures how much noise is around it. When the noise goes above a certain level, the sound trigger will send out an on or 5 volt signal to the following Bits in the circuit. Use the adjustment slider to set the sensitivity (how much noise is needed to trigger your Bit).