8968560565
Includes ESP-IDF NFC stack (deep capture, 4K Classic geometry, UL write API, open SoftAP), React dashboard with live tag diagnostics, and docs. README updated for APIs and lab Wi-Fi defaults. Made-with: Cursor
1.1 KiB
1.1 KiB
Pinout notes (ESP32-S3-DevKitC-1)
Strapping and USB pins differ by revision — avoid GPIO 19–20 for PN532 when using USB-Serial/JTAG on many boards. Prefer SPI2 on free GPIOs from the DevKitC-1 user guide.
Kconfig defaults (examples only)
The firmware Kconfig ships example GPIOs:
- SPI: MOSI
11, MISO13, SCLK12, CS10 - I2C: SDA
8, SCL9
You must verify these against your PCB/breadboard and PN532 breakout (Adafruit / Elechouse / clones often label SPI and I2C jumpers).
PN532 wiring checklist
- SPI: connect
RSTO/RSTto MCU if exposed; some breakouts auto-reset via I2C/SPI activity. - I2C: set address pins per module (usually 0x24 7‑bit).
- Power: 3.3V logic on ESP32; ensure PN532 module is 3.3V compliant (level-shift if using a 5V Arduino-style shield).
Transport selection
Start with the bus your breakout is jumpered for — I2C is often simplest on ESP32 for bring-up; SPI may require lower clock initially (e.g. 100 kHz).