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Driver code available

The driver for the PiFi-240 amplifier’s now available in the Raspian source tree – many thanks to Phil Elwell for patiently walking us through the process.

We’ve also been taking some measurements just to verify its performance, and it’s where it should be according to the datasheets – THD+N is <0.05% at 1W across the board.  Next up is to measure its thermal performance – how its temperature in still air changes with average power output – and to verify the peak power output available.

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