Page 3 9-Apr-06 OpenTooth 3.0.00004 DS383-2 © FlexiPanel Ltd Patents apply and/or pending www.FlexiPanel.com
Note: The OpenTooth Evaluation Version may be supplied with a Class I radio with 100m range. Since most
phones etc are Class II devices, they will only be detected within a 10m range and operation will not be
noticeably different. In production quantities, a Class II device is preferred to improve RF channel availability.
Operating Configurations
OpenTooth can be used as a standalone unit or as part of a networked access control system.
In Standalone Operation, OpenTooth lights an LED when a trusted device is present. While the trusted
device is present, a relay can be (i) pulsed to provide access immediately (default), (ii) pulsed to provide
access if a pushbutton is pressed, or (iii) energized to disable an alarm. New users register by pairing using a
secret PIN code. Settings are managed by connecting to OpenTooth from a Windows PC or Pocket PC (or
certain high-end phones).
In Networked Operation, OpenTooth transmits information about the detected Bluetooth devices to a central
computer using the industry standard Weigand data format. Proprietary formats can be provided as a
customization feature. In access control applications, detected devices are be transmitted to the central
computer when a pushbutton is pressed, just like a standard Weigand card reader except that no card is
required. The central computer decides whether or not to provide access. For personnel tracking applications,
detected devices are transmitted to the central computer at regular intervals. This allows the central computer
to track users within a building using an existing Weigand security network
Standalone Operation
A typical application circuit for standalone
operation is shown in the adjacent figure. D1 is
an LED which pulses briefly every 15 seconds
during normal operation. Pushbutton PB1 is de-
bounced by C1 and R1.
To register, for example, a new phone, press the
pushbutton repeatedly until the LED flashes.
Use the Bluetooth on your phone to search for
OpenTooth and pair with it. Pairing may be
called bonding or trusted devices depending on
the phone. You will need to enter the New User
PIN code (the initial setting is 1234). Once
pairing is complete you may delete OpenTooth
from the phone’s list of paired devices –
OpenTooth will still remember it. New users registered in this way stay registered for six months and are then
automatically deleted. If you do not pair with any device within five minutes, or if you press the button again,
OpenTooth will reset.
Once a new device is registered, LED1 will light whenever it is present and, by default, relay RL1 will trigger
once every 15 seconds to provide access. If, for some reason, the user wishes stay in range, they may
temporarily disable the relay by pressing the button. Normal service will resume when the user is no longer
present or the relay is pressed again.
To configure OpenTooth in a more detailed manner it is necessary to connect to it using FlexiPanel Client
software. This is available for Windows PCs, Pocket PCs and high-end mobile phones. It is freely
distributable and may be downloaded from www.FlexiPanel.com. To connect to OpenTooth, press and hold
the button for five seconds until the LED flashes. Then search for and connect to OpenTooth from the
computer running FlexiPanel Client software. A
Configuration PIN must be entered. This can be
different from the New User PIN. The initial
setting is 0000.
Once connected, the Registered Users screen
will list the registered users. Press Add to add a
new user and the Add User screen is displayed.
The Add User screen shows a list of the
Bluetooth devices most recently detected.
OpenTooth
Vin
Relay I
Vin
Vss
R1
Vdd
Vss
Relay II
Relay III
Relay IV
C1
LED
PB
To lock
release
RL1
100n
47k
R2
1k
D1
PB1
D2
Typical application circuit for standalone operation
