Skip to content
Arduino Ethernet code for 23b's Open Access Control system
Branch: master
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Type Name Latest commit message Commit time
Failed to load latest commit information.


/* Open Access Control for Hacker Spaces - Ethernet Branch
 * Branch last modified by HeatSync Labs
 * by Will Bradley
 * Upstream created by 23B Shop Hacker Space
 * by John Norman and Dan Lozano
 * Readme updated 8/8/2012

For the latest version of THIS BRANCH, visit:

For the latest version of the UPSTREAM software, visit:

Note: Unpack the libraries (WIEGAND26, DS1307, PCATTACH) into your arduino
libraries directory.  This is usually:

(restart the Arduino program afterwards to apply the changes.)

The hardware design for the Open Access Control for Hacker Spaces uses the Arduino 
board with Atmega 328. It has been tested with:

-Arduino Uno
-Arduino Duemilanove
-Freeduino through hole (NKC)

The software has the following features:
-Shield compatible with Arduino
-Designed for use with Wiegand26 format readers (up to 3 support in software)
-DS1307 Real-time clock support
-(2) Wiegand26 reader inputs (optoisolated)
-(4) Alarm zone monitor ports using Analog0..3
-(4) Relay outputs


The following pin assignments are assumed by this software:

-Pins 2,3 for Reader 1
-Pins 4,5 for Reader 2
-Pins 5,6,7,8 for Relays
-Pins A0,A1,A2,A3 for alarm sensors
-Pins A4,A5 for SDA,SCL (I2C)

You'll need to adjust the IPAddress and the PRIVPASSWORD to fit your environment/preferences.

You can’t perform that action at this time.