The Electret Mic Breakout translates amplitude (not volume) by capturing sound waves between two conducting plates (one a vibrating diaphragm and the other fixed) in the microphone and converting them into electrical waves. These electrical signals are then amplified and picked up by your microcontroller’s ADC.
The ADMP401 is a high quality, low cost analog output bottom ported omnidirectional MEMS microphone. That was a mouthful! A wide frequency response and low current consumption makes it perfect for embedded applications.****Check for a breakout board below.
Small electret microphone. Useful in acoustic and audio applications.
Communication with microSD cards is achieved over an SPI interface. The SCK, DI, and DO pins of the microSD socket are broken out to the ATmega168/328’s standard SPI pins (digital 11-13), while the CS pin is broken out to Arduino’s D8 pin.
The SparkFun Big Red Box Proto Board is a large, custom made PCB that has been specifically designed to be used with and installed into our Big Red Box. This board features a large prototyping area with exactly 1,488 solder points (yes, we counted).
EasyVR 3.0 is a multi-purpose speech recognition module designed to add versatile, robust and cost effective speech and voice recognition capabilities to virtually any application. EasyVR is the third generation version of the successful VRbot module and builds on the features and functionality of its predecessor. In addition to the EasyVR 3.
The SparkFun Inventor’s Kit for Photon is the latest and greatest in Internet of Things kits. Whether you’re a software developer just getting in to hardware, an EE learning software, or somewhere in between, this kit will help you get your projects hooked up to the Internet in no time.
The amplifier on the breakout has a gain of 67 and more than meets the bandwidth requirements of the mic. The amplifier’s AUD output will float at one half Vcc when no sound is being picked up. The amplifier produces a peak-to-peak output of about 200mV when the microphone is held at arms length and is being talked into at normal conversational...
The envelope output allows you to easily read amplitude of sound by simply measuring the analog voltage. Gain can be adjusted with a through-hole resistor, to change the threshold of the binary (gate) output pin as well. Check the hookup guide below for more information about setting gain.