The NanoVNA-H firmware and variants has a "capture" command which returns the raw screen data, which can be used to make screenshots of the device. I'm adding support for this to NanoVNA-Saver. If you were to add a similar facility to the NanoVNA-F firmware, I would want to support this as well. :-)
I see that a capture command has been added. However, it seems to send erroneous data: Cyan is sent the same way as white, ie. as 0xFFFF. I think that's a bug?
The NanoVNA-H firmware and variants has a "capture" command which returns the raw screen data, which can be used to make screenshots of the device. I'm adding support for this to NanoVNA-Saver. If you were to add a similar facility to the NanoVNA-F firmware, I would want to support this as well. :-)