Sound sensors, acoustic wave sensors with a microphone and vibration sensors are a group of transducers that detect vibrations in the form of waves of different frequency, converting them into an electrical signal. In Botland store, you will find sensors suitable for the application you are building .. Offer of sound sensors and electroacoustic signalling devices of the Grove module system from Seeed Studio, compatible with Arduino and Raspberry Pi. The sensors enable the construction of any applications that use sound signals for control (e.g. acoustic switches), as well as enriching the projects with the function of emitting a sound signal triggered by a specific event, e.g. low battery level. We also offer LED modules that can work with sensors and sounders. Another type of sensors we offer are vibration detecting sensors, i.e. operating in the frequency band from 1mHz to even 1GHz, so it can be used in a wide range of devices, e.g. in anti-burglary systems, motion detection systems in space, as well as switches.