avr에 스피커 달기

[링크 : http://blog.naver.com/rk756/100133481427] BASCOM으로 AVR 소리내기

[링크 : http://www.mcselec.com/] BASCOM - BASic COMpiler for AVR

[링크 : http://www.maicom.co.kr/xe/3000]

[링크 : http://www.ermicro.com/blog/?p=580] c버전/ 반짝반짝 작은별

http://extremeelectronics.co.in/avr-tutorials/sound-generation-by-avr-micro-tutorial-i/ 

http://tahmidmc.blogspot.kr/2013/02/sine-wave-generation-with-fast-pwm-mode_2525.html