STM32L EMV Access Card Design

I need a complete, production-ready EMV smart card built around an STM32L microcontroller. The card’s only job is secure identification and access control, so every design choice must reinforce that goal. Core features I must see working are NFC communication and on-card biometric authentication; I’m open to whichever biometric method best fits the hardware footprint and security requirements, as long as it meets current industry standards.

What I expect from you is a turnkey package that covers both electronics and firmware. That means the full schematic, layered PCB layout, BOM with realistic lead times, and clean, well-documented source code that runs on the STM32L and handles EMV transaction flow, biometric enrolment/matching, and NFC data exchange. The firmware has to compile without warnings, pass static-analysis checks, and be ready for field updates via a secure bootloader.

Deliverables
• Schematic (PDF & native CAD)
• PCB Gerbers, assembly drawings, pick-and-place files
• Complete BOM with supplier links
• STM32L firmware source, project files, and build scripts
• Firmware flashing & test procedure document
• Brief report explaining security hardening choices

Acceptance criteria
• Card successfully negotiates ISO 7816/EMV and NFC-A transactions on a standard tester
• Biometric match speed < 1 s with a false-accept rate in line with commercial readers
• Current consumption within STM32L low-power envelope for a passive NFC card

If you’ve shipped similar secure hardware before, especially anything EMV-based, this should feel familiar. Let me know which CAD, toolchain, and secure element libraries you plan to use, and an outline timeline for first prototypes.