Selkamies/raspberry_clock_in

Cloking-in device with Raspberry Pi 4 using C.

Clocking in device with Raspberry Pi 4 using C.

A clocking in device, where user can enter a PIN code using a keypad, and codes are validated from a database. Upon valid PIN, a log entry is saved to a database.

Features

• RGB LED displaying colors depending on user input.
• Sound output depending user input.
• Configuration file with settings for:
  • Keypad size and the characters on the keypad keys.
  • All GPIO pin numbers.
  • PIN lengths, timeout times and update intervals.
  • Default audio device or manual device id.

External libraries used.

• pigpio, for GPIO pin handling. GitHub link. License: Public domain.
• SQLite database. License: Public domain.
• Simple DirecMedia Layer, SDL 2. GitHub link. License: zlib license.
• SDL_Mixer for sound output. License: zlib license.

Credits

• Selkamies
• jaakho