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Gwyscope is a low cost, open hardware, Digital Signal Processor (DSP) suitable for Scanning Probe Microscopy measurements, focusing on demonstrating the concept of adaptive scanning, general XYZ data acquisition and statistical data processing on the controller level. More details can be found in: M. Valtr et al., Scanning Probe Microscopy controller with advanced sampling support, HardwareX, Volume 15, e00451 https://www.hardware-x.com/article/S2468-0672(23)00058-5/fulltext 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. ...