Open Access 3.0

Open Access Control v 3.0

This page summarizes the design notes for the next generation of the Open Access Control system. Included are lessons learned from the 1.0 and 2.0 versions and the detailed specification for the next revision.

System Features

The new system includes:

• Standard and Mega versions (4 or 8 relays, 4 or 16 alarm zones)
• RS-485 support for networking of systems, readers, etc.
• 2xfully-mplemented Wiegand readers with power, LED, etc.
• 25,000 user memory, thanks to the 1Mbit Atmel AT24C eeprom chip. (Increased from 200 user limit of current system)

Design Docs and Background

• Design Requirements
• Functional Blocks
• Detailed Specification
• Firmware and Libraries

Downloads

Open Access Mega (Arduino Mega Version)

File:Open Access v3.1 mega v100a8.zip

• Includes Eagle CAD Schematic and Board Files
• Bill of Materials included as attributes in drawing

File:Open Access Control Mega Firmware v101.zip

• Firmware and libraries for Open Access Mega