Interfacing bluetooth module with arduino pdf

For details, see the reference and tutorials. They operate at 5 volts. The ATmega on the Arduino BT comes preburned with hluetooth bootloader that allows you to upload new code to it without the use of an external hardware Interfacing bluetooth module with arduino pdf. Higher voltages or reversed polarity in the power supply can damage or destroy the board. Its name is set to ARDUINOBT and passcode to The ATmega also supports I2C TWI and SPI communication. These pins can be configured to trigger an interrupt on a low value, a rising or falling edge, or a change in value. You can supply voltage through this pin, or, if supplying voltage via the screw terminals, access it through this pin.


Interfacing bluetooth module with arduino pdf

The Arduino BT is a microcontroller board originally was based on the ATmegabut now is supplied with the It supports wireless serial communication over bluetooth but is not compatible with Bluetooth headsets or other audio devices. It contains everything needed to support the microcontroller and Interfacin be programmed wirelessly over the Bluetooth connection. Instructions are available for getting started with the Arduino BT.

The board contains a DC-DC convector that allows it to be powered with as little as 2. Higher voltages or reversed polarity in the power supply can damage or destroy the board. The protection for reverse polarity connection is ONLY on the screw terminal. The ATmega has 32 KB of flash memory for storing code of which 2 KB is used for the bootloader. It has 1 KB of SRAM and bytes of EEPROM which can be read and written with the EEPROM library. Each of the 14 digital pins on the BT can be used as an input or output, using pinModedigitalWriteand digitalRead functions.

They operate Interfacing bluetooth module with arduino pdf 5 volts. Each pin can provide or receive a maximum of 40 mA and has an internal pull-up resistor disconnected by default of kOhms. In addition, some pins have specialized functions: The BT has 6 analog inputs, each of which provide 10 bits of resolution i. By default they measure from ground to 5 volts, though is it possible to change the upper modulr of their range using the AREF pin and some low-level code.

The Bluegiga WT11 module on the Arduino BT provides Bluetooth communication with computers, phones, and other Bluetooth devices. The WT11 communicates with the ATmega via serial shared with the Mldule and TX pins on the board. It comes configured for baud communication. The Arduino software includes a serial monitor which allows simple textual data to be sent to and from the Arduino board over this bluetooth connection.

The board can also be reprogrammed using this same wireless connection. The WT11 is specially configured for use in the Arduino BT. Its name is Interfading to ARDUINOBT and passcode to For details, see the complete initialization sketch. The Arduino BT has a number of other facilities for communicating. The ATmega also supports I2C TWI and SPI communication. The Arduino software includes a Wire library to simplify use of the I2C bus; see bluetootj documentation on the Wiring website for details.

To use the SPI communication, please see the ATmega datasheet. The Arduino BT can be programmed with the Arduino software download. For details, see the reference and tutorials. The ATmega on the Arduino BT comes preburned with a bootloader that allows you to upload new code to it without the use of an external hardware programmer.

It communicates using the original STK protocol referenceC header files. You can also bypass the bootloader and program the ATmega through the ICSP In-Circuit Serial Programming header; see these instructions for details. The maximum length and width of the BT are approximately 3. Three screw holes allow the Interfaxing to be attached to a surface or case. Note that the distance between digital pins 7 and 8 is mil 0. Instructions are available for getting started with the Arduino Adruino. Analog Input Pins 6.

DC Current for 3. DC Current for 5V Pin mA Interfacing bluetooth module with arduino pdf a 1. Flash Memory 32 KB of which 2 KB used by bootloader. Clock Speed 16 MHz. The power pins are as follows:. The input voltage to the Arduino board i. You can supply voltage through this pin, or, if supplying voltage via the screw terminals, access it through this Interfacing bluetooth module with arduino pdf. Warning: The protection for reverse Bose bluetooth adapter amazon connection is ONLY on the screw terminal, do not attach negative voltages to this pin.

It will damage the board. This pin outputs a regulated 5V from the regulator on the board. The board can be supplied with power either from the screw terminal 2. Supplying voltage via the 5V or 3. It has 1 KB of SRAM and bytes of EEPROM which can be read and written with the EEPROM library. In addition, some pins have specialized functions:. Serial: 0 RX Interfacing bluetooth module with arduino pdf 1 TX.

Used to receive RX and transmit TX TTL serial data. These pins are connected to the corresponding pins of the Bluegiga WT11 module. External Interrupts: 2 and 3. These pins can be configured to Intertacing an interrupt on a low value, a rising or falling edge, or a change in value. See the attachInterrupt function for details.

PWM: 3, 5, 6, 9, Interfacing bluetooth module with arduino pdf, and Provide 8-bit PWM output with the analogWrite function. SPI: 10 SS11 MOSI12 MISO13 SCK. These pins support SPI communication, which, although provided by the underlying hardware, is not currently included in the Arduino language. Connected to bluehooth reset line of the Bluegiga WT11 module, which is active high. There is a built-in LED connected to digital pin The BT has 6 analog inputs, each of which provide 10 bits of resolution i.

Additionally, some pins have specialized functionality:. Support I 2 C TWI communication using the Wire library documentation on the Wiring website. There are a couple of Interfacing bluetooth module with arduino pdf pins on the board:. Reference voltage for the analog inputs. The board can also be reprogrammed using this same wireless connection. For details, see the complete initialization sketch.

To use the SPI communication, please see the ATmega datasheet. For details, see the reference and tutorials. It communicates using the original STK protocol referenceC header files. You can also bypass the bootloader and program the ATmega through the ICSP In-Circuit Serial Programming header; see these instructions for details.


Interfacing bluetooth module with arduino pdf


Arduino BT (Bluetooth) with the (datasheet) and the Bluegiga WT11 bluetooth module (details and datasheet [ pdf ]). Schematic: Arduino_BT. pdf. The Arduino BT is a microcontroller board based on the ATmega (datasheet) and the Bluegiga WT11 bluetooth module (details and datasheet [ pdf ]). HC embedded Bluetooth serial communication module (can be short for module) has two work modes: order-response work mode and automatic connection.