The ADMP504 is a high performance, very low noise, low power, analog output, bottom-ported omnidirectional MEMS microphone. The ADMP504 consists of a MEMS microphone element, an impedance converter and an output amplifier. The ADMP504 sensitivity specification makes it an excellent choice for both near field and far field applications. The ADMP504 is function- and pin-compatible […]
ADI low noise MEMS microphone targets mobiles Continue Reading
This sketch shows you how to read the microphone sensor. The microphone will range from 0 (total silence) to 1023 (really loud). It uses the sound level to set a brightness level for the green LED. When you’re using the sensor’s reading (for example, to set the brightness of the LED), you map the sensor’s
Arduino Esplora Microphone (Sound Sensor) Continue Reading
MEMS Microphone Basics MEMS microphones are constructed with a MEMS (Micro-Electro-Mechanical System) component placed on a printed circuit board (PCB) and protected with a mechanical cover. A small hole is fabricated in the case to allow sound into the microphone and is either designated as top-ported if the hole is in the top cover or
Comparing MEMS and Electret Condenser Microphones Continue Reading
Built around the powerful Arm Cortex-M4 CPU with inbuilt DSP for optimized audio processing, it allows developers to quickly and easily integrate data-over-sound technology into embedded scenarios. Freely-available reference designs and open-source sample applications make it easy to build a data-over-sound prototype that can be seamlessly scaled to production. We’ve made it as quick and simple
THE CHIRP EXPLORER BOARD, A FIRST FOR DATA-OVER-SOUND. Continue Reading
Firefly has launched a new SODIMM-style, 67.6 x 40mm Core-PX3-SEJ module that runs Android 5.1 or Ubuntu 15.04 on a Rockchip PX3-SE. It’s a new 1.3GHz, quad-core, Cortex-A7 SoC. The 40 USD module is available in a 1GB RAM/8GB eMMC configuration on a $120, 117 x 85mm Firefly-PX3-SE development board. Other memory configurations may also be available soon. The PX3-SE SoC gives the module
Firefly’s Latest Core-PX3-SEJ COM Runs Ubuntu or Android Continue Reading
I built this a short while ago as an idea to use in a primary classroom setting. Poster displays are often used by primary teachers wanting to control the noise levels in their classrooms but I wanted to add technology to make it dynamic and responsive. The motivation for this came after seeing the Adafruit
VU Meter – LED Noise-o-Meter for Classrooms Continue Reading
The 3.5mm phone jack is a well-established standard in the audio industry and continues to get strong support from users in the market. Originally invented in the 19th century for telephone switch boards, it made its way into mobile phones, tablets, and personal computers to connect audio and communication headsets for phone calls or simply
Data-rich 3.5mm jack vies with USB-C for headsets Continue Reading
Features 3V and GND connections can be made from either side and allow you to power a second board such as the MonkMakes Relay Board or MonkMakes Speaker. LED ‘power on’ indicator Reverse polarity protection All three sensors are analog and can be connected to pins P0, P1 and P2 using alligator clips. Getting Started Connecting
Sensor Board For Micro:Bit Continue Reading
Kontron’s pITX-iMX8M motherboard features NXP’s dual or quad core CPUs based on the Arm Cortex-A53 architecture with up to 1.5 GHz. The Cortex M4 coprocessor and full 4K UltraHD resolution make the board the perfect foundation for sophisticated applications. It offers enhanced connectivity through two Gigabit Ethernet interfaces as well as superior graphics performance. Thanks to its
KONTRON SBC PITX-IMX8M FOR 4K UHD GRAPHICS PERFORMANCE Continue Reading
Hi guys, during the last few weeks, I’ve been working on reconnecting with my love for the guitar. Playing the box guitar was how I relax few years back before the saxophone took over. Going back to the guitar, after 3 years of rarely strumming a chord, I discovered amongst other things that I
Arduino Based Guitar Tuner Continue Reading
