You are reading a single comment by @Robin and its replies.
Click here to read the full conversation.
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.
@Robin
Tue 2020.04.07
After reviewing the available hardware, there is a technology, NFC Near Field Communication that is of some interest, as retailers are starting to adopt that payment mechanism at checkouts.
As NFC is currently only available on recent model smart phones, a quick size up of their viewable screen size in comparison to a tablet seems to be that in landscape mode, the tablet viewable screen area appears to be around one and one half inches larger.
Off to compare Smart Phone options, bang for the buck as they say, the offset of smaller reading area for what appears to be a higher initial cost outlay.