Timbra Technical Specifications

Microcontroller

• 8-bit architecture [details]
• 16 MHz operating frequency
• 32 KB program memory
• 2 KB RAM
• 1 KB non-volatile memory for fixed parameters

Connectivity

• Integrated 2.4 GHz Wi-Fi module
• Direct communication with backend systems [design choice]
• Real-time transmission of attendance events using standard protocols

Power Supply

• 5 V operating voltage
• Powered via USB cable or external adapter
• Low energy consumption suitable for continuous 24/7 operation

Identification & Reading

• Integrated RFID/NFC reader
• Compatible with badges and tags of any shape, including cards, keyfobs, labels and custom formats
• Immediate acquisition of the identification code with real-time online validation

Hardware Interfaces

• Configurable digital I/O lines for auxiliary functions and state signals
• Available analog inputs for optional additional sensors
• Support for serial, I²C and SPI communication for hardware expansions
• USB port used for power supply and diagnostics

Operating Features

• All identification and validation processes occur online
• If the connection is lost, the device automatically attempts to restore it until successful
• Local user feedback available through LEDs and buzzer

Data Security

• All data is encrypted during transmission
• Robust access protection mechanisms prevent unauthorized access
• Cloud infrastructure includes regular backups
• Privacy protections enforced through authentication of authorized users only

Badge Compatibility and Standards

• RFID/NFC reader supports 13.56 MHz standards
• Compatible with tags and badges from multiple vendors and manufacturers

Offline Handling and Local Buffer

• If the cloud connection fails, the system enters a “trying to reconnect” state
• The device does not accept attendance punches until the connection is restored

Scalability and Operational Limits

• Capable of managing an unlimited number of users
• Concurrent usage limits have not been reached in real-world tests
• Expected concurrent capacity in the range of several thousand users
• Cloud database infrastructure is fully scalable

Software Integration and Compatibility

• Supports exporting attendance data in CSV and Excel formats
• Compatible with external payroll and HR management systems via data import