Older, free versions were previously hosted on GitHub, but many have been removed or moved to mirrors like Gitee .
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>> pidTuner
PID Toolbox (PTB) is a specialized graphical analysis tool designed for FPV drone enthusiasts to tune their flight performance by analyzing Blackbox log data from Betaflight, INAV, and Emuflight. It provides advanced visual data like spectrograms and step response curves to help users refine their PID and filter settings. Older, free versions were previously hosted on GitHub,