Gravity: Analog Sound Level Meter _MAKE_SOLDER Very useful for displaying status

Very useful for displaying status information

Low standby current: 1

Jumper Wires

Soft AP mode for creating custom access point

it's a seriously exquisite hand tool with a ton of smarts that will make it your new favorite tool

Gravity: Analog Sound Level Meter _MAKE_SOLDER Very useful for displaying statusThis is an Arduino compatible sound level meter(also known as decibel meter, noise meter). It uses instrument circuit and low noise microphone, which enable it to accurately measure the sound level of the surrounding environment. It can be applied to environmental noise testing, such as highway noise monitoring station, bedroom noise monitoring, etc. Nowadays, there are many kinds of sounds surrounding, some of which are really noisy. It is really