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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.
@Michael
Thanks guys for your help. As expected, taking the comment out didn't help. The RFID board is the same greenish-looking one on the module demo page. I've seen other red-coloured variants of this board that doesn't seem to have the SDA pin (not sure what this is for anyway).
Yes, I will try looking at the source file for the module's include and see what I can find (I may try another board too). I may also try pull-up resistors on the SPI lines.
Thanks alot for your assistance.