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Raspberry Pi AirPlay Tube Radio

Raspberry Pi AirPlay Tube Radio

Vintage tube radios are nostalgic. The crackle of the game on the after dark high powered AM station from 500 miles away. The smell of the tubes and the warmth of the tones. They remind us of simpler times. Times when families sat together – not blankly staring unengaged at the TV, bur rather talking,

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Debug GPIO with LED

Debug GPIO with LED

During the daily device driver development routine, we often need to understand the behavior of the GPIO pins to understand if there is I2C traffic or if our driver is handling the coming interrupts and so on. Sometimes is not enough to mount the debugfs interfaces and read out the values or cat/grep the /proc/interrupts

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