Intercom
General architecture of hardware and software elements of the Intercom system
Embedded Files
Hardware architecture
Control Unit
Raspberry Pi 3B+ with audio feeder
usb sound card with PAM8610 amplifier
Interface panel
speaker
microphone MAX9814
buttons PBS-33B (in the future will be replaced by a full numeric keypad)
NFC reader DFR0231-H with NXP Pn532 chip
Mifare identification device DESFire EV2 with MF3ICD41 chip
Software architecture
Samyy application - WEB-site, with native API
physical identity device emulation service
SIP telephony service
SamyyAdmin administrator application
physical identity device programming
encrypted local base for whitelist
hardware stability system
configuration setting system
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