La placa Arduino BT es una placa Arduino con un módulo bluetooth incorporado, que permite la comunicación inalámbrica. Para empezar a utilizar la Arduino BT, sigue las instrucciones para comenzar con la Arduino NG en tu sistema operativo (Windows, Mac OS X, Linux), con las siguientes modificaciones:

• En primer lugar, vincula la Arduino BT con el ordenador y crear un puerto serie virtual para ella. Busca un dispositivo bluetooth llamado ARDUINOBT y la contraseña es 12345.

• Selecciona Arduino BT desde el menu Tools | Board del entorno de desarrollo Arduino.

Información sobre la Arduino BT

En lo esencial, la Arduino BT es similar a la Arduino Diecimila. Éstas son las principales diferencias de la placa Arduino BT (además del hecho de que se comunica a través de bluetooth en vez de USB):

• La Arduino BT es más frágil y sencilla de romper que una placa Arduino normal.

• No alimentes la placa con más de 5,5 voltios ni invertas la polaridad (la alimentación y los pines de masa) de su fuente de alimentación, o podrías 'cargarte' el microcontrolador ATmega168 de la Arduino BT. En cambio, la Arduino BT puede funcionar con un mínimo de 1,2 voltios, esto te facilita alimentarla con baterías.

• El microcontrolador (un ATmega168) de la Arduino BT es una versión físicamente más pequeña del mismo circuito integrado que tiene las placas Arduino USB. Es complicado quitarlo. Mejor no intentes quitarlo, de lo contrario si te lo 'cargas', necesitarás una Arduino BT nueva.

• Hay dos entradas analógicas adicionales en la Arduino BT (8 en total). Dos de ellas, aunque, no están conectadas a las clavijas de pines de la placa; podrás usarlas soldando algo a las pistas con los números "6" y "7".

• El pin 7 está conectado al pin de 'reset' del módulo bluetooth, no lo utilices para nada (salvo para restablecer el módulo).

Para más información, mira la página del hardware de Arduino BT.

Uso de la Arduino BT

La comunicación serie en placa entre el módulo bluetooth y un 'sketch' Arduino (ejecutándose en el ATmega168) tiene que ser a 115.200 baudios (es decir, tienes que llamar a Serial.begin (115.200) en tu función setup()). La comunicación entre el módulo bluetooth y el ordenador puede ser a cualquier velocidad de transmisión.

El establecimiento de la comunicación entre el módulo BT y el ordenador puede ser cambiante. Quizás es mejor abrir el monitor serie un par de segundos después de reiniciar la placa.

In most respects, the Arduino BT is similar to the Arduino Diecimila. Here are the main differences of BT board (besides the fact that it communicates over bluetooth instead of USB):

• The Arduino BT is more fragile and easy to break than a regular Arduino board.

• Don't power the board with more than 5.5 volts to the or reverse the polarity (power and ground pins) of your power supply, or you might kill the ATmega168 on the Arduino BT. The Arduino BT can, however, run with a minimum of 1.2 volts, making it easier to power with batteries.

• The Arduino BT is more fragile and easy to break than a regular Arduino board.

• Pin 7 is connected to the reset pin of the bluetooth module; don't use it for anything (except resetting the module).

The on-board serial communication between the bluetooth module and the Arduino sketch (running on the ATmega168) needs to be at 115200 baud (i.e. call Serial.begin(115200) in your setup() function). Communication between the bluetooth module and the computer can be at any baud rate.

Communication between the BT module and the computer can be temperamental. You might want to open the serial monitor a couple of seconds after resetting the board.

• The microcontroller (an ATmega168) on the Arduino BT is a physically smaller version of the chip on the USB Arduino boards. You can't remove it, so if you kill it, you need a new Arduino BT.

• There are two extra analog inputs on the Arduino BT (8 total). Two of these, however, are not connected to the pin headers on the board; you'll need to solder something to the pads next to the numbers "6" and "7".

• Select Arduino BT from the Tools | Board menu of the Arduino environment.

The microcontroller (an ATmega168) on the Arduino BT is a physically smaller version of the chip on the USB Arduino boards, with the following small difference:

• There are two extra analog inputs on the Arduino BT (8 total). Two of these, however, are not connected to the pin headers on the board; you'll need to solder something to the pads next to the numbers "6" and "7".

• First, pair the Arduino BT with your computer and create a virtual serial port for it. Look for a bluetooth device called ARDUINOBT and the pass code is 12345.

Only communicate at 115200 baud using the serial commands (e.g. Serial.begin(), etc.). This is the speed for which the bluetooth is configured.

Pin 7 is connected to the reset pin of the bluetooth module; don't use it for anything (except resetting the module).

For more details, see the Arduino BT hardware page.

Using the Arduino BT

Only communicate at 115200 baud using the serial commands (e.g. Serial.begin(), etc.). This is the speed for which the bluetooth is configured.

The Arduino BT is more fragile and easy to break than a regular Arduino board.

The Arduino BT is an Arduino board with built-in bluetooth module, allowing for wireless communication. To get started with the Arduino BT, follow the directions for the Arduino NG on your operating system (Windows, Mac OS X, Linux), with the following modifications:

• First, pair the Arduino BT with your computer and create a virtual serial port for it.

• Select ATmega168 from the Tools | Microcontroller (MCU) menu of the Arduino environment.

Information about the Arduino BT

The Arduino BT has a more powerful chip than the regular Arduino board (an ATmega168 instead of an ATmega8), meaning:

• Your sketches can be twice as big (14 KB instead of 7 KB).

• There are three extra PWM outputs (on pins 3, 5, and 6) in addition to the three on regular Arduino boards (pins 9, 10, and 11).

• There are two extra analog inputs (8 total).

The Arduino Mini is more fragile and easy to break than a regular Arduino board.

• Don't power the board with more than 5.5 volts to the or reverse the polarity (power and ground pins) of your power supply, or you might kill the ATmega168 on the Arduino BT. The Arduino BT can, however, run with a minimum of 1.2 volts, making it easier to power with batteries.

• You can't remove the ATmega168, so if you kill it, you need a new Arduino BT.

For more details, see the Arduino BT hardware page.

First, you need to power the Arduino BT. The board takes a minimum of 1.2 volts and a maximum of 5.5 volts. If you apply more voltage or reverse the polarity of the power supply, you'll kill the board.

Second, you'll have to pair the Arduino BT with your computer. Search for bluetooth devices using your computer's bluetooth software. The Arduino BT will be called ARDUINOBT. The default pass code is 12345. You'll also need to create a virtual serial port (also called a virtual com port) for the Arduino BT. The steps required depend on your computer's bluetooth hardware and software.

Third, you'll need to set a couple of options within the Arduino environment. Select the virtual serial port corresponding to your Arduino BT from the Tools | Serial Port menu. Select ATmega168 from the Tools | Microcontroller (MCU) menu.

Now you should be able to upload a sketch to the Arduino BT. Open the led_blink example, reset the board, and press the upload button in the environment.

ArduinoBT

The Arduino BT is an Arduino board with built-in bluetooth module, allowing for wireless communication. This page explains how to get started using your Arduino BT. For more information on the board, see the Arduino BT hardware page.

Using the Arduino BT

To use the ArduinoBT, you'll need bluetooth connectivity for your computer. Many computers come with bluetooth connectivity, if yours doesn't, you'll need a bluetooth dongle.

First, you need to power the Arduino BT. The board takes a minimum of 1.2 volts and a maximum of 5.5 volts. If you apply more voltage or reverse the polarity of the power supply, you'll kill the board.