The Arduino is a small Atmel-based microcontroller development board easily integrated into many different types of digital control and automation. Hundreds of thousands of Makers, hobbyists and researchers around the world make use of Arduino variat
http://forum.arduino.cc/index.php?topic=28763.0 Arduino SD自带的例程都是有一个BUG的,必须在pinMode后面加上如下的第二行代码 pinMode(, OUTPUT); digitalWrite(10, HIGH); // davekw7x: If it's low, the Wiznet chip corrupts the SPI bus