Gwyscope
Open hardware SPM controller with advanced sampling support.
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It is based on a low cost FPGA board Red Pitaya and additional high bit depth AD and DA converters. When put together with the AFM scanning hardware (sensor, scanner and their amplifiers) and user interface software it can serve as a standalone SPM system. Otherwise, it can serve as a sub-module for a custom built SPM system, e.g. providing the feedback loop mechanism only. Finally, it can be used as a board for developing advanced sampling techniques, which was the primary goal.