Nowadays the most commonly used microphone types that need power from microphone connector are PC sound card microphones (3.5 mm plug) and Phantom powered professional microphones (XLR connector). Those two microphones are not compatible with each other, but there are cases where you might want to interchange them. In this posting I will describe how →
Want a virtual reality headset, but can’t afford the hefty pricetag on most existing models ? (Too expensive toy?). Google dropped an inexpensive solution following its I/O keynote: Google Cardboard, an app that lets Android users transform their phones into VR headsets with the help of a DIY cardboard viewer. This is interesting. The parts →
There are very many cool Arduino projects and project sites in Internet (make Google search to see). Here are some interesting links to check out: Arduino Projects at indestructables Arduino user projects Arduino Project Ideas Top 40 Arduino Projects of the Web Arduino Rising: 10 Amazing Projects People Are Doing With The Tiny Microcontroller Electronics →
Home automation has been a hot topic lately.Home is quickly becoming just another node in the worldwide Internet of Thing. Latest home automation news story series started on the Google bying NEST. It was followed with latest news on Apple’s Home Automation and Nest opening its APIs. For more details on the latest development on →
I had ordered HC-05 Bluetooth adapter for Arduino. After some frustration with some failed attempts to do the communication with it, I left it waiting for new motivation. Then last week I happened to see Triggering Remote Fireworks with an Arduino and an Android article that pointed to ArduDroid: A Simple 2-Way Bluetooth-based Android Controller →
Computer microphones: Interfacing Microphones to Computer Sound Cards is a nice compact document on interfacing different microphones to PC sound cards. It starts with the same basics as I covered on my electret mic interfacing document an continues with some more sound card interfacing details (including some stereo mics on some sound card). The document →
Virtual machines are mainstream in cloud computing. The newest development on the this arena are fast and lightweight process virtualization. Linux-based container infrastructure is an emerging cloud technology that provides its users an environment as close as possible to a standard Linux distribution. Linux Containers and the Future Cloud article tells that as opposed to →
Like 1080p before it, 4K is the new, ultra-high-resolution format that promises better detail and greater image clarity due to the huge number of pixels packed into your screen. It is true that the increased level of detail provided by 4K is theoretically indistinguishable to the human eye once you pass a certain distance from →
I found a cheap mixed signal oscilloscope product: HT-USBee AxPro. This HT-USBee AxPro is a said to be 8 Channel Logic Analyzer Oscilloscope Compatible USBee AX Pro I2C IIC SPI CAN Debugger. It features Oscilloscope Input (single channel, 16Msps, 3MHz bandwidth) and 8-CH Logic Analyzer. With suitable software it can be used as Data Recorder, →
Android has been with us in one form or another for more than six years, and it has changed a lot in that time. Android now a historically big operating system. Almost a billion total devices have been sold, and 1.5 million devices are activated per day—but how did Google get here? The history of →