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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.
@DaveNI
One quick question - when receiving an unknown number of bytes how can I tell that the "stream" of data has been fully received and how many dummy bytes should I send at a time?
Or maybe I need to ask the slave device how many bytes I should expect to receive (e.g. the size of a file)