Sensors / Microphone / Sound

Add an ear to your project with this well-designed electret microphone amplifier with AGC. This fully assembled and tested board comes with a 20-20KHz electret microphone soldered on. For the amplification, we use the Maxim MAX9814, a specialty chip that is designed for amplifying electret microphones in situations where the loudness of the audio isn't predictable....

Listen to this good news - we now have a breakout board for a super tiny I2S MEMS microphone. Just like 'classic' electret microphones, MEMS mics can detect sound and convert it to voltage, but they're way smaller and thinner. This microphone doesn't even have analog out, it's purely digital. The I2S is a small, low-cost MEMS mic with a range of about 50Hz - 15KHz,...

Hey, listen up! It's the world's smallest USB microphone! OK maybe it's not in the Guinness Record Book, but it is pretty darn small! This plug-and-play Mini USB Microphone needs no driver, and its USB interface means you can use it with any computer, laptop, SBC, etc! Works great with a Raspberry Pi computer, but you can also use it with any other computer you want...

An exotic new microphone has arrived in the Adafruit shop, a PDM MEMS Microphone! PDM is the 'third' kind of microphone you can integrate with electronics, apart from analog or I2S. These microphones are very commonly used in products, but are rarely seen in maker projects. Still, they have some benefits so we thought we'd offer a breakout for the shop. The first...

Listen to this good news - we now have a breakout board for a super tiny MEMS microphone. Just like 'classic' electret microphones, MEMS mics can detect sound and convert it to voltage, but they don't need a bias resistor or amplifier, its all in one! The SPW2430 is a small, low cost MEMS mic with a range of 100Hz - 10KHz, good for just about all general audio...

This electret capsule microphone is the same one we use in our great microphone amplifier board. It contains a small vibrating element that will output a few millivolts peak-to-peak. You will need an op-amp to amplify the signal, some chips are designed with the amplifier built-in in which case you can wire it up directly. This is an "omnidirectional" microphone,...

An exotic new microphone has arrived in the Adafruit shop, a PDM MEMS Microphone! PDM is the 'third' kind of microphone you can integrate with electronics, apart from analog or I2S. These microphones are very commonly used in products, but are rarely seen in maker projects. Still, they have some benefits so we thought we'd offer a breakout for the shop. The first...

That's one tiny microphone! At about the size of a mature aphid, this wired Electret Microphone is perfect for your FONA. This microphone's very similar to our PCB-mount Electret Microphone but is significantly smaller and has pre-attached 65mm long wires. We don't have a specific datasheet for it but it can be biased with 2V and 2K impedance. You do need an electret...

An assortment of the most common sensors used in electronics. 9 sensors and 3 additional components to interface with the 'analog world'. We have some tutorials here, to get you started. Includes Triple-axis analog accelerometer - for measuring motion and tilt. Force sensitive resistor - for sensing pressure/force. Temperature sensor - for measuring from -40 to over...

Add an ear to your project with this well-designed electret microphone amplifier. This fully assembled and tested board comes with a 20-20KHz electret microphone soldered on. For the amplification, we use the Maxim MAX4466, an op-amp specifically designed for this delicate task! The amplifier has excellent power supply noise rejection, so this amplifier sounds really...