I think you'd struggle with sensible realtime speeds using individual HTTP requests... On pretty much any device running Espruino.
What about just using websockets, or opening a direct socket connection to Espruino? Those would be really quick (especially sockets).
@Gordon started
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.
I think you'd struggle with sensible realtime speeds using individual HTTP requests... On pretty much any device running Espruino.
What about just using websockets, or opening a direct socket connection to Espruino? Those would be really quick (especially sockets).