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v0.3.2
Firmware 0.3.2 and the Windows viewer.
sutterspeed-viewer.exe: Windows viewer (no install). Pick the board's COM port.sutterspeed.hex: firmware. Flash it from the viewer (chip icon) or withsutterspeed-viewer --flash sutterspeed.hex.
Changes in 0.3.2: the shutter measurement decides start and end on a lightly smoothed value, so noise around the trigger level no longer keeps a pulse open; trigger level / edge changes no longer restart the capture.