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Member Since: June 1, 2010

Country: United States



Chief Engineer


Goal Technologies LLC

Spoken Languages

English, Chinese

Programming Languages

C, C++, Java, JavaScript, Python, C#


University of Minnesota



  • I found the solution at:

  • I tried to use this board with Breakout Board for ADMP401 MEMS Microphone (http://www.sparkfun.com/products/9868) to create mini radio station but I cannot get a FM radio to receive any audio out of it. Please help!

  • Does anyone get this chip work under 3.3V? I can only get it work under 5V 16MHz using Arduino IDE.

  • I figured out myself by choosing “w/USBtinyISP”.

  • I installed windows driver successfully on both windows 7 and XP. None of them shows the COM port. I don’t know how to get Arduino IDE work without specify COM port under “Tools->Serial Port” menu. Thanks!

  • But, this requires 4 I/O pins plus 1 interrupt. How can you figure out which pin’s value has been changed? When polling the values for all 4 pins, it is too late to get those pins previous values.

  • The code works fine but it uses 2 interrupts. I am using Arduino pro mini which has only 2 interrupts. How can I get 4 directions and one button work? Thanks.

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