tldr; nitty gritty details of an interesting chip for a “smart” card reader/writer
Further exploring teh depths of access control all the things has led to what’s the latest and greatest from NXP. This is a newer iteration of the PN532, a well established and tested choice with some existing open source designs.
Is this an opportunity to further an open source reference design with future functionality options beyond the Clipper?
- Data Sheet https://www.nxp.com/docs/en/data-sheet/PN7462.pdf
- Antenna design guide https://www.nxp.com/docs/en/application-note/AN11706.pdf
- Contact Smart Card application https://www.nxp.com/docs/en/application-note/AN11738.pdf