The raspberry lock is a small application that runs on a Raspberry Pi with a PiFace shield. It reads a 4-digit user-ID and a 4-6 digit passcode from a 4x4 matrix keypad. It then sends this data to a LDAP server to check if the entered user-id and passcode combination is correct. If the server answers with "correct", a door is opened by switching on an electric strike with a relais.
Install the piface module with the Raspberry Pi configuration tool:
sudo raspi-config (then follow the menu to Advanced -> SPI)
sudo apt-get install python3.2 python3.2-dev build-essential
sudo apt-get install libldap-2.4-2
sudo ln -s /usr/lib/arm-linux-gnueabihf/libldap_r-2.4.so.2 /usr/lib/arm-linux-gnueabihf/libldap.so
sudo ldconfig
sudo apt-get install python3-setuptools
sudo apt-get install python3-pifacedigitalios
git clone http://git.jaseg.net/python-lmap.git
cd python-lmap
python3 setup.py install
Now clone this repository and change into its subdirectory.
Copy config.py.sample to config.py and change the password/binddn/pin field/group membership test for your application.
python3 schloss.py
Press A, then enter your 4 digit UID code, then press A again. Now enter your 4-6 digit PIN code and hit A. If the code was correct, the door will open.
+-----------------------------------------------------------------------+
|+---------------------------------------------------------------------+|
||+-------------------------------------------------------------------+||
|||+-----------------------------------------------------------------+|||
|||| +------+................. ||||
|||| | | : +---------------+ ||||
|||+---+0 | RASPBERRY PI : | KEYPAD | ||||
||+----+1 +--------+ : | | ||||
|+-----+2 | : | 1 2 3 F | ||||
+------+3 | : | 4 5 6 E | ||||
|+4 +-------+ | 7 8 9 D | ||||
|+5 | | A 0 B C | ||||
|+6 ^ | | ||||
|+7 | | | ||||
|+0V + +---++++-++++---+ ||||
| | to LEDs |||| |||| ||||
| | ^ ^ |||| |||+------+|||
| PIFACE | Red| |Green |||| ||+--------+||
| | | | |||| |+----------+|
| | | | |||| +------------+
| ++ 7+-------+ | ||||
| || 6+---------+ ||||
| || 5+------------------------+|||
| || 4+-------------------------+||
| || +----+ +----+ 3+--------------------------+|
| || | | | | 2+---------------------------+
| || | R0 | | R1 | 1 |
| || | | | | 0 |
| ++ +----+ +----+ GND |
| .. +++ +++ +++ :|
+-------------||--------+ +-------------+
|+------------------| DOOR OPENER |-----+ +7.5V DC
| +-------------+
+---------------------------------------+ - (GND)
- PiFace documentation: http://www.farnell.com/datasheets/1684425.pdf
- The keypad that we used looks somethink like this: http://uk.farnell.com/eao/eco-16250-06/keypad-4x4-matrix-0-02a-24v-plastic/dp/1130806