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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.
@Robin
Mon 2019.12.30
Just checked my notes, @Drumline18 and the SPI setup is identical to mine. So that should be good to go. Wire it up to the D1 and let us know of your success!
Post #1 mentioned KeyeStudio, but the datasheet points to the MIFARE flavor. A few subtle differences. Dug up the link I used: (datasheet .pdf in link close to page end)
Yeah, I kept seeing the data line image diagrams in other posts back then. First figured I couldn't afford a S.W.A.G. guess of $1000, as scopes cost that and sidelined the thought. Later, just did a little searching like you are doing to find one suitable for my kitchen table projects.
shhhhh . . . While Amazon carries the FX2 for just under twenty dollars, Banggood has (unvetted to me) a different label CN knockoff for half that cost, should shipping wait time not be an issue. they are probably from the same chip mfg anyway