Wiegand.h [new] Direct

// Callback type for completed card reads typedef void (*wiegand_callback_t)(uint32_t facility_code, uint32_t card_number, int bits_received);

Wiegand::Wiegand() instance = this; _rawCode = 0; _bitCount = 0; _frameComplete = false; wiegand.h

Most implementations, such as the monkeyboard library, follow a similar structure: monkeyboard/Wiegand-Protocol-Library-for-Arduino - GitHub // Callback type for completed card reads typedef

While not a standard library in the Arduino Core or vanilla C libraries, wiegand.h appears across thousands of GitHub repositories, custom firmware projects, and commercial access control panels. This article explores what wiegand.h does, its common implementations, the intricacies of the Wiegand protocol, and how to write your own robust wiegand.h for microcontrollers. Wiegand::Wiegand() instance = this