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Easy Bluetooth (#30085)
The Easy Bluetooth is a RoboTech RBT-001 Bluetooth serial module with an adapter specifically designed
to be used with the Parallax Board of Education
®
AppMod Header or breadboard. In addition, the Easy
Bluetooth can plug into any 0.1 inch spacing development platform which allows it to be breadboard
friendly, and also easy to implement into a soldering application. The module has two parts, the RBT-001
module and the SIP with voltage regulator PCB. With the on-board regulator, the module can be
connected to voltages higher than 3.3 VDC, such as the Board of Education regulated supply (+5 VDC)
without worry of damaging the unit; while the RX and TX can utilize serial communication at CMOS and
TTL levels.
Features
1.x & 2.0 Bluetooth Compliant
Class 2 Operation (nominal range up to 30 meters)
10-pin SIP package for breadboard, perfboard, or Board of Education AppMod Header
On-board regulator for safe operations across various voltages
CMOS & TTL Compatible
Key Specifications
Power requirements: 3.3 to 5.5 VDC
Communication: UART Command/Data Port
supports for up to 921.6k baud
Operating temperature: +32 to +113 °F
(0 to +45 °C)
Dimensions: 1.40 x 1.79 x .49 in (34.41 x 45.65
x 12.51 mm)
Application Ideas
Control a Boe-Bot via Bluetooth from a PC, Cell
Phone, or another Bluetooth module
Communicate with a device or project wirelessly
Packing List
RBT-001 Module
10-pin SIP with connector Module
(pre-assembled with RTB-001)
Copyright © Parallax Inc.
Easy Bluetooth (#30085)
v1.3 4/14/2010 Page 1 of 9
Quick Start Circuit for the BASIC Stamp 2 and Board of Education
There are a few steps to take to install an Easy Bluetooth module, creating a Bluetooth connection on a
PC operating with Windows XP, and finally writing a program for the BASIC Stamp
®
2. Once you are
done, you will have a working Easy Bluetooth module communicating with the PC via Bluetooth.
Installing the Easy Bluetooth Module
1. Carefully open the Easy Bluetooth package and check that the two small boards are properly
plugged into each other as shown in Figure 1.
2. Now plug the Easy Bluetooth module into the AppMod header of the Board of Education: insert
the module in the left row of the AppMod Header and notice there are labels on the module that
indicate correct pin placement (Rx uses P0, Tx uses P2, Vss with Vss and Vdd with Vdd). Visually
confirm the module is inserted correctly using Figure 2 before powering.
3. Connect a communication cable and power supply to the Board of Education and turn the power
switch to location 1.
Figure 1
Creating a new Bluetooth Connection
Figure 2
1. Be sure that the Bluetooth dongle that you installed on your PC is working correctly and is turned
on (see Bluetooth Dongle user manual for specific instructions to ensure proper operation).
a. Open Control Panel, click “Printer and Other Hardware” and then click Bluetooth Devices.
If in Classic View double click “Bluetooth Devices”.
Copyright © Parallax Inc.
Easy Bluetooth (#30085)
v1.3 4/14/2010 Page 2 of 9
b. Click “Add”.
c.
Check “My Device is set up and ready to be found” in the “Add Bluetooth Device Wizard”
and click "Next".
d. Select "EasyBT" from the displayed Bluetooth devices and click “Next”.
e. Select “Use the passkey found in the documentation" and enter the Passkey Code 0000
(zero four times) and click “Next”.
f.
Bluetooth Manager should display and designate an Outgoing and Incoming COM port for
the Easy Bluetooth device: make a note of the COM ports because these are the ports
you will use to communicate with the Easy Bluetooth.
g. Select "Finish" to complete the Bluetooth device configuration.
2. To close the “Bluetooth Devices” window click “OK”.
A test for the BASIC Stamp 2 microcontroller
1. The Easy Bluetooth can communicate at numerous baud rates, and with many different
microcontrollers. This example uses the AppMod Header on the Board of Education, the BASIC
Stamp 2, at 9600 baud.
2. The easiest way to see in your code if a Bluetooth connection has been established is to wait for
a byte to be received. You can copy the program below into the BASIC Stamp Editor to ensure a
proper connection.
' {$STAMP BS2}
' {$PBASIC 2.5}
RX
TX
Baud
combyte
CON
CON
CON
2
0
84
VAR Byte
'Receive Pin
'Transmit Pin
'9600 Baud
'Communication Byte
DEBUG “Use This Screen for Display”,CR
DO
'Wait for a first byte indicating an active Bluetooth connection
SERIN RX, Baud, [combyte]
DEBUG combyte
LOOP
3. Download the program using Run => Run (ctrl + r) from the BASIC Stamp Editor
4. Keep Current DEBUG Screen open, and open another DEBUG Screen (ctrl +d) from the BASIC
Stamp Editor, and select TX COM that the Bluetooth module (refer to COM ports during Bluetooth
installation) is using; you should now have 2 DEBUG Terminal windows open. Click in the white
area of the DEBUG window of DEBUG Terminal 2 and press any key; if all the steps were
correctly done, the same key will be sent back to the DEBUG Terminal 1 window.
Copyright © Parallax Inc.
Easy Bluetooth (#30085)
v1.3 4/14/2010 Page 3 of 9
Resources and Downloads
You may download the RBT-001 user manual, example source codes, PC applications, and mobile phone
application from
www.parallax.com.
*Mobile phone must be compatible with the JSR-82 Java API; usually all Nokia and Sony Ericsson phone
are compatible, but check users manual for compatibility. Configuration of mobile phone is not supported
by Parallax Technical Support.
Device Information
Theory of Operation
Bluetooth is an open wireless protocol for exchanging data over short distances from fixed and mobile
devices, creating Personal Area Networks (PANs). It was originally conceived as a wireless alternative to
RS232 data cables. It can connect several devices, overcoming problems of synchronization.
There are various versions of Bluetooth communication and the Easy Bluetooth is compatible with
versions 1.x and 2.0.
Precautions
The Easy Bluetooth uses the microwave radio frequency spectrum in the 2.4 GHz to 2.4835 GHz range.
Maximum power output from this Bluetooth radio 2.5 mW; Class 2 devices are considered less of a
potential hazard than mobile phones.
Pin Definitions and Ratings
Pin
1
2
3
4
5
6
7
8
9
10
Vss
RX
TX
NC
NC
NC
NC
NC
NC
Vdd
Name
Function
Ground
Receive Serial Communication (CMOS & TTL Level Compatible)
Transmit Serial Communication (CMOS & TTL Level Compatible)
Not Connected
Not Connected
Not Connected
Not Connected
Not Connected
Not Connected
+3.3 to +5 VDC (+5.5 max voltage)
Communication Protocol
UART Command/Data Port supports up to 921.6k non-inverted baud.
Copyright © Parallax Inc.
Easy Bluetooth (#30085)
v1.3 4/14/2010 Page 4 of 9
Connection Diagram
Vdd
(3.3 VDC
≤ Vdd ≤ 5 VDC)
nc
nc
nc
nc
nc
nc
Rx
Tx
GND
Module Dimensions
1.40 in (34.41 mm)
1.79 in (45.65 mm)
Copyright © Parallax Inc.
Easy Bluetooth (#30085)
v1.3 4/14/2010 Page 5 of 9
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