Just to add, it looks from the screenshots (down the bottom of them) like the DSO has a buffer that's about 3x the size of what you can see - so (even though we don't need the whole signal) it looks like you may stand a chance of getting it in.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Just to add, it looks from the screenshots (down the bottom of them) like the DSO has a buffer that's about 3x the size of what you can see - so (even though we don't need the whole signal) it looks like you may stand a chance of getting it in.