Wiegand.h -

while (1) vTaskDelay(pdMS_TO_TICKS(1000));

// Configuration structure typedef struct uint8_t pin_d0; uint8_t pin_d1; uint32_t bit_timeout_us; // Max gap between bits (e.g., 2500) uint32_t packet_timeout_us; // Gap to finalize packet (e.g., 15000) bool pullup_enable; // Use internal pullups? wiegand_config_t; wiegand.h

#ifndef WIEGAND_H #define WIEGAND_H #include <stdint.h> #include <stdbool.h> while (1) vTaskDelay(pdMS_TO_TICKS(1000))

bool validate_26bit(uint32_t raw) uint8_t even_parity = parity_even((raw >> 25) & 0x7F); // Bits 1..13? uint8_t odd_parity = parity_odd((raw >> 1) & 0x3FFF); // Bits 14..25? return (even_parity == ((raw >> 25) & 1)) && (odd_parity == ((raw >> 0) & 1)); // Max gap between bits (e.g.

void IRAM_ATTR on_d1_falling() record_bit(1);