14 best arduino bt

Product description

Module parameters:

1.PCB Size: 37.3mm (Long) *15.5mm (wide)

2. Weight: 3.5g

3. Input voltage: 3.6V--6V, prohibit exceeding 7V

4. Leads 6 feet: EN/VCC/GND/RXD/TXD/STATE (Bluetooth state leads, not connected output low level, the output high level after connection)

5. With the connection status indicator, LED flash indicates no Bluetooth connection; Led slow flash indicates enter at command mode

6. On-board 3.3V voltage regulator chip, input voltage DC 3.6V-6V; When not paired, current about 30mA (due to LED lights flashing, current in the state of change); After the pairing succeeds, the current is about 10mA

7. Effective transmission distance of 10 meters in open area, more than 10 meters is possible, but not to ensure the quality of the connection

8. After pairing succeeds, can be used as full duplex serial port. No need to understand any Bluetooth protocol, but only support 8-bit data bits, 1-bit stop bits, no parity communication format. This is also the most commonly used communication format, does not support other formats!

9. Press the key and then power up the Bluetooth module to enter at mode, set parameters and query information

10. Can switch host and machine mode from at command

11. The module default baud rate is 9600, the default pairing password is 1234, the default name is HC-05



Wiring method:

VCC: Connect the power supply positive

GND: Connecting the cathode

RXD: The receiver, the Bluetooth module receives data from other devices, and the sending end TXD of the other devices normally

TXD: Send end, Bluetooth module sends data to other equipment; the receiving end RXD of the other equipments normally

En: To enable the end, need to enter the at mode when 3.3V



Note: this item doesn't works with iOS.

Package included:

2 * HC-05 6 Pin Wireless Bluetooth RF Transceiver Module Serial BT Module for Arduino

• The factory setting is slave mode, but you can set this module to master mode so that you might be able to connect to other Bluetooth 2.0 devices.HC-05 Wireless BT Module
• HC-05 Wireless BT Module: with this HC 05 Bluetooth module,You can quickly add the Bluetooth feature to your Arduino project, and then you can use your android phone to control some gadgets, such as: switch, LED.
• Master and Slave 2-IN-1 HC 05 Module:Working Voltage 3.6V to 6V , Default baud rate:9600,Default pin:1234
• Button: Press the button, the module enter the AT mode. AT commands are executed only in AT mode.
• 6 PIN Dopunt Cable : with this Dupont Cable, you can easily connect this HC-05 Bluetooth module to your Arduino Board

User questions & answers

Question:	How do you use AT mode
Answer:	As I remember, you hold the button while applying power. In any case do an internet search for the HC-05 data sheet ant that will tell you everything you need to know.
Question:	does it come with the jumper cables to connect hc05 to arduino
Answer:	I don't think so
Question:	Is this compatible with iOS
Answer:	I don’t think so. You needs bluetooth 4.0 or later. Same company/vendor should provide an iOS compatible product at about the same price.
Question:	Can i communicate with my bluetooth battery management board (bms) using this (through the bms' app
Answer:	Yes as the Bluetooth signals are handled in the module. Just be sure you have the correct software in your app,

• Designed for short range BT interactions and power savvy projects.
• Small (48mm x 18mm) and robust board is built around the NINA B306 module, based on Nordic nRF 52840 and containing a powerful Cortex M4F.
• The board’s architecture is fully compatible with Arduino IDE Online and Offline with dedicated libraries; it has a 9 axis Inertial Measurement Unit (IMU) and a reduced power consumption compared to other same size boards.
• Clock 64MHz, Flask 1MB, RAM 256KB. Two 15 pin connectors - one on each side of the board.

Product features

What makes Arduino products special

• Continuous attention to User Experience
• High quality manufacturing & testing process: All products are assembled in Italy, following highest EU standards.
• End to end security for IoT: From hardware cryptography to cloud
• Best in> high quality communication modules
• Quality standards: We comply with the highest quality standards and pursue modern design approaches
• Customer support: We take care of our customers and provide several portals for communication and knowledge-sharing

MKR

The ideal solution for emerging battery powered IoT edge applications.

NANO

A tiny footprint, powerful processors and excellent reliability.

PRO

Arduino’s series of high performance industry-rated boards.

• Designed for short range BT interactions and power savvy projects
• Small (48mm x 18mm) and robust board is built around the NINA B306 module, based on Nordic nRF 52840 and containing a powerful Cortex M4F
• The board’s architecture is fully compatible with Arduino IDE Online and Offline it has a 9 axis Inertial Measurement Unit (IMU) and a reduced power consumption compared to other same size boards.
• Clock 64MHz, Flask 1MB, RAM 256KB
• Two 15 pin connectors - one on each side of the board

Product features

What makes Arduino products special

• Continuous attention to User Experience
• High quality manufacturing & testing process: All products are assembled in Italy, following highest EU standards.
• End to end security for IoT: From hardware cryptography to cloud
• Best in> high quality communication modules
• Quality standards: We comply with the highest quality standards and pursue modern design approaches
• Customer support: We take care of our customers and provide several portals for communication and knowledge-sharing

MKR

The ideal solution for emerging battery powered IoT edge applications.

NANO

A tiny footprint, powerful processors and excellent reliability.

PRO

Arduino’s series of high performance industry-rated boards.

Product description

Package

1 X HC-05 Module



The Core module is HC-05 bluetooth 2.0 module.

By using this Bluetooth module, you can quickly add Bluetooth features to your for arduino project.

The factory setting is slave mode, but you can set this module to master mode so that you might be able to connect to other Bluetooth 2.0 devices.

Please note: This is a classic Bluetooth 2.0 module, it is not compatible for iphone or ipad If you need to use for iphone or ipad to control your for arduino project. You may need a Bluetooth 4.0 ble module (such as SH-HC-08 Bluetooth 4.0 ble module)

• 1.Use the CSR BC417 mainstream bluetooth chip, bluetooth V2.0 SPP protocol standards
• 2.Module working voltage 3.6 V to 6V
• 3.HC-05 Wireless BT Module: with this HC 05 Bluetooth module,You can quickly add the Bluetooth feature to your for Arduino project, and then you can use your android phone to control some gadgets, such as: switch, LED.
• 4.6 PIN Dopunt Cable : with this Dupont Cable, you can easily connect this HC-05 Bluetooth module to your for Arduino Board
• 5.Can be switched via AT commands as master or slave mode , the device can be connected via AT commands specified

Product description

Module parameters:

- Size: 37.3mm * 15.5mm

- Input voltage: 3.6V-6V

- Working voltage: 3.3V

- With transparent heat shrink tube.

- If the circuit is reversed, the module will not work.

- Keep pressing the reset button and power on the Bluetooth module to enter AT mode.

- Any serial device with a communication format of "fixed baud rate, 8 data bits, and no parity" can directly replace the original wired serial port.



TXD: Transmitter, normal communication must be connected to RXD of another device.

RXD: The receiving end, normal communication must be connected to the TXD of another device.

During normal communication, its TXD is always connected to the RXD of the device.

Loopback test: The TXD is directly connected to RXD and it can test whether its sending and receiving are normal.



Package List:

2* HC-05 Bluetooth Module

• ★ Master-slave integration ★ The original chip corresponds to the master-slave integration function. Master-slave integration can switch between master and slave modes. Through AT command setting, you can select master mode or slave mode.
• ★ CSR BC417 Bluetooth chip ★ Comply with Bluetooth V2.0 SPP protocol standard. Support a wide range of baud rate (4800~1382400), the default baud rate is 9600. The effective distance of Bluetooth connection is 10 meters.
• ★ Working status indicator ★ Fast flashing LED means no Bluetooth connection, slow flashing means entering AT mode, double flashing means Bluetooth is connected and the port is opened.
• ★ AT Setting ★ Press the button and power on the module to enter the AT mode. All functions are set by AT commands, which is easy to use.
• ★ Tips ★ Do not connect the power supply to the signal pin, otherwise the module will be directly damaged. The input voltage must not exceed 7V.

Product description

Product description

*Core modules using HC-05 from module,interface includes EN/VCC/GND/RXD/TXD/STATE

*Reserved the LED Pin so that you can make the test



Notice:

*Prohibition of TXD or RXD with ground short circuit

*Ban modules to meet the power supply



Features





*Model:    HC-05

*Input  Voltage:    3.6V~6V

*Operating  Current:    30mA(Unpaired)/10mA(Paired)

*6 Pin Interface:    EN/VCC/GND/RXD/TXD/STATE

*Interface  Level:    3.3V(Direct  Connected 51,AVR,PIC,ARM,MSP430)

*Paired  Distance:    10M (Max)

*The Default  Rate:    9600

*Default  matching password:    1234

*Default Name:    HC-05

*Size:    35.7mm*15.2mm





You'll Receive



2 Pcs HC-05 Module

• [Master and slave Two in one module] The factory setting is slave mode, but you can set this module to master mode so that you might be able to connect to other Bluetooth 2.0 devices.Please note: iOS devices (iPhone) are not supported
• [HC-05 Wireless BT Module] with this HC 05 Bluetooth module,You can quickly add the Bluetooth feature to your Arduino project, and then you can use your android phone to control some gadgets, such as: switch, LED.
• [Master and Slave 2-IN-1 HC 05 Module] Working Voltage 3.6V to 6V , Default baud rate:9600,Default pin:1234
• [AT Button] Press the button, the module enter the AT mode. AT commands are executed only in AT mode.
• [6 PIN Dopunt Cable] with this Dupont Cable, you can easily connect this HC-05 Bluetooth module to your Arduino Board

Product description

Specifications:

Bluetooth protocal: Bluetooth Specification v2.0+EDR

Frequency: 2.4GHz ISM band

Modulation: GFSK(Gaussian Frequency Shift Keying)

Emission power: 4dBm, Class 2

Sensitivity: -84dBm at 0.1% BER

Speed: Asynchronous: 2.1Mbps(Max) / 160 kbps, Synchronous: 1Mbps/1Mbps

Security: Authentication and encryption

Profiles: Bluetooth serial port

Power supply: +3.3VDC 50mA

Working temperature: -20 ~ +75 Centigrade

Dimension: 26.9mm x 13mm x 2.2 mm

Note: This module does not suitable for IOS system. Package List 1 X HC-05 Module with Plastic cover

• HC-05, module core module VCC, GND, TXD, RXD, KEY pin, pin output connection status (STATE), using the interface of the leads, the output did not connect low.
• LED indicates the Bluetooth connection status, the flash indicates that there is no Bluetooth connection, the slow flash to enter the AT mode, the double flash indicates that Bluetooth has been connected and opened the port
• Works with any USB Bluetooth adapters, running in slave role: Pair with BT dongle. Led indicate Bluetooth connection status, flashing Bluetooth connectivity, lit the Bluetooth connection and open a port Backplane
• Aalt set 3.3V LDO with anti-reverse diode, input voltage 3.6 ~ 6V, unpaired current about 30mA, about 10mA coupling, input voltage must not exceed 7V!
• Effective distance of 10 meters (Class 2 power rating) is possible, more than 10 meters is possible, but do not make this connection to provide distance qualities.

Product features

Get Prototyping, Pronto

Over the last decade, Arduino has emerged as one of the most accessible hardware and software platforms for creatives and makers. Arduino 101 is one of the newest boards from Arduino. It combines the ease-of-use of boards like Arduino Uno with powerful features, such as Bluetooth, motion sensing, and gesture recognition.

In this book you’ll also explore the possibilities of creating web-based interfaces to communicate with Arduino 101 via the recently drafted Web Bluetooth API. You’ll also learn how to use the accelerometer and gyroscope built into the 101, along with Intel Curie’s pattern matching engine, to train the board and build your own media player.

This hands-on introduction to Arduino 101, complete with source code and walkthroughs, will help you start prototyping your projects right away.

Product description

Product description



Module parameters:

1.PCB Size: 37.3mm (Long) *15.5mm (wide)

2. Weight: 3.5g

3. Input voltage: 3.6V--6V, prohibit exceeding 7V

4. Leads 6 feet: EN/VCC/GND/RXD/TXD/STATE (Bluetooth state leads, not connected output low level, the output high level after connection)

5. With the connection status indicator, LED flash indicates no Bluetooth connection; Led slow flash indicates enter at command mode

6. On-board 3.3V voltage regulator chip, input voltage DC 3.6V-6V; When not paired, current about 30mA (due to LED lights flashing, current in the state of change); After the pairing succeeds, the current is about 10mA

7. Effective transmission distance of 10 meters in open area, more than 10 meters is possible, but not to ensure the quality of the connection

8. After pairing succeeds, can be used as full duplex serial port. No need to understand any Bluetooth protocol, but only support 8-bit data bits, 1-bit stop bits, no parity communication format. This is also the most commonly used communication format, does not support other formats!

9. Press the key and then power up the Bluetooth module to enter at mode, set parameters and query information

10. Can switch host and machine mode from at command

11. The module default baud rate is 9600, the default pairing password is 1234, the default name is HC-05

Wiring method:

VCC: Connect the power supply positive

GND: Connecting the cathode

RXD: The receiver, the Bluetooth module receives data from other devices, and the sending end TXD of the other devices normally

TXD: Send end, Bluetooth module sends data to other equipment; the receiving end RXD of the other equipments normally

En: To enable the end, need to enter the at mode when 3.3V



Note: this item doesn't works with iOS.

Package included:

1* HC-05 6 Pin Wireless Bluetooth RF Transceiver Module Serial BT Module for Arduino

• The factory setting is slave mode, but you can set this module to master mode so that you might be able to connect to other Bluetooth 2.0 devices.HC-05 Wireless BT Module
• HC-05 Wireless BT Module: with this HC 05 Bluetooth module,You can quickly add the Bluetooth feature to your Arduino project, and then you can use your android phone to control some gadgets, such as: switch, LED.
• Master and Slave 2-IN-1 HC 05 Module:Working Voltage 3.6V to 6V , Default baud rate:9600,Default pin:1234
• Button: Press the button, the module enter the AT mode. AT commands are executed only in AT mode.
• 6 PIN Dopunt Cable : with this Dupont Cable, you can easily connect this HC-05 Bluetooth module to your Arduino Board

Product description

It's blue! It's thin! It's the Pro Mini! SparkFun's minimal design approach to microcontrollers. This is a 5V board running the 16MHz bootloader. Pro Mini, Compatible with Arduino, does not come with connectors populated so that you can solder in any connector or wire with any orientation you need. We recommend first time Arduino IDE platform users start with the Arduino Uno R3. It's a great board that will get you up and running quickly. The Pro series is meant for users that understand the limitations of system voltage (5V), lack of connectors, and USB off board.

We really wanted to minimize the cost of a board that is compatible with Arduino. In order to accomplish this we used all SMD components, made it two layer, etc. This board connects directly to the FTDI Basic Breakout board and supports auto-reset. The Pro Mini also works with the FTDI cable but the FTDI cable does not bring out the DTR pin so the auto-reset feature will not work. There is a voltage regulator on board so it can accept voltage up to 12VDC. If you're supplying unregulated power to the board, be sure to connect to the "RAW" pin and not VCC.

The latest and greatest version of this board breaks out the ADC6 and ADC7 pins as well as adds footprints for optional I2C pull-up resistors! We also took the opportunity to slap it with the OSHW logo.

• ATmega328 running at 16MHz with external resonator (0.5% tolerance)
• No USB connection off board. Need FTDI board (or similar device) to program.
• Supports auto-reset
• 5V regulator
• Max 150mA output

User questions & answers

Question:	mA output
Answer:	150 mA is the limit for the onboard voltage regulator. The Pro Mini should have no trouble driving 27 Charliplexed LEDs directly because it's only turning on a few LEDs at time.
Question:	If I had an output speaker how could I download or program the board to play it
Answer:	For the most comprehensive answer I would suggest going to www.arduino.cc. Hope this helps!
Question:	Where can I get a schematic for this board
Answer:	Sparkfun, https://www.sparkfun.com/products/11113
Question:	This board will able to connect led light and sound
Answer:	Yes. Don't think about the size of the circuit board, look at the microcontroller that is on it to judge the capabilities. This has the digital and analog output necessary for light and sound.

• 5V 8-Channel Relay interface board, each one needs 70mA Driver Current; Equiped with high-current relay, AC250V 10A ; DC30V 10A
• Each relay has normally open and normally closed contact. Can be selected by jumper relay and TTL or ground.
• With power indicator,8-way road has a status indicator. With a relay coil to absorb the diode protection.
• Standard interface that can be controlled directly by microcontroller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic)
• The 8 channels are optically isolated, safe, reliable, anti-interference. Widely used for all MCU control, industrial sector, PLC control, smart home control。For a complete data sheet for this relay board, please download it from: http://dwz.win/UhW

User questions & answers

Question:	I know these are 10 amp relays but what would happen if I put a 15 amp device on them? Like a table saw. Would it shorten the life or just not work
Answer:	There is another board that looks identical to this one that is rated the same except it specifically calls out the 120V rating... And it's rated at 15A for 120V and 10A for 250V. Looks identical... I'd either just buy that one or use this one to run a larger relay. That said what is 15A? Because the max continuous load on a 15A AC circuit is 12A. I wouldn't worry about hitting this thing with 15A if start up.
Question:	Why is it active on low and how do i close it on arduino
Answer:	Active low, energized when the control pin is set to 0v, is because semi-conductors can absorb (or sink) more power than they can push out (or supply). This means that the common side of the relays is connected to the supply, in this case +5vdc, and circuit completes by setting the other pin to 0v. The other side then acts as a switch closing the contact and completing the external high voltage/current circuit.
Question:	Is there a datasheet for this
Answer:	Pls. download it from this link: http://www.elegoo.com/tutorial/Elegoo%208%20Channel%20DC%205V%20Relay%20Module%20with%20Optocoupler%20for%20Arduino%20UNO%20R3%20MEGA%202560.pdf
Question:	why can the relay handle such a high AC power but a low DC power
Answer:	When it comes to switches or relays, the big difference between AC and DC is that AC naturally has "current zeros" twice a cycle. As you open the contacts, you'll draw an arc until there's a current zero which obviously means it extinquishes. Assuming the current and voltage are somewhat in phase, the voltage across the contacts at the time will also be relatively low. This gives the ionized air formed by the arc some time to dissapate before the voltage rises to a maximum, and so the air gap should hold. With DC, there are no current zeros. You have to break the current by separating the contacts across so much air that the voltage isn't enough to maintain the ionized path. This means that the AC rating of a switch or relay should be higher than its DC rating.

Product features

Product discription:

Product Name : 8-Channel Relay Module; Output Channel : 8

Power Supply : 5V;Load Voltage : AC 250V 10A,DC 30V 10A

Total Size : 134mm x 52mm x 17mm/ 5.3" x 2.0" x 0.7" (L*W*H);

Mounted Hole Size : 3mm/ 0.12"

Upper Mounted Hole Center Distance : 129.2 x 46.7mm/5.1" x 1.8"(L*W);

Lower Mounted Hole Center Distance : 128.5 x 46.7mm/5.1" x 1.8"(L*W);

Material : Electric Part

Weight : 122g;

Package Content : 1 x 8-Channel Relay Module

• Small (48mm x 18mm), powerful, Bluetooth connected and with all the sensors you may need to design innovative applications.
• Built around the NINA B306 module for BLE and Bluetooth 5 communication; the module is based on Nordic nRF 52840 processor that contains a powerful Cortex M4F
• The board’s architecture is fully compatible with Arduino IDE Online and Offline; it has a 9 axis Inertial Measurement Unit (IMU), temperature, pressure, humidity, light, color and gesture sensors, plus a microphone that are managed through specialised Arduino libraries.
• Clock 64MHz, Flask 1MB, RAM 256KB
• Two 15 pin connectors - one on each side of the board.

User questions & answers

Question:	Can this be programmed via the Bluetooth module
Answer:	Yes, it works with the Arduino BLE Library.

Product features

What makes Arduino products special

• Continuous attention to User Experience
• High quality manufacturing & testing process: All products are assembled in Italy, following highest EU standards.
• End to end security for IoT: From hardware cryptography to cloud
• Best in> high quality communication modules
• Quality standards: We comply with the highest quality standards and pursue modern design approaches
• Customer support: We take care of our customers and provide several portals for communication and knowledge-sharing

MKR

The ideal solution for emerging battery powered IoT edge applications.

NANO

A tiny footprint, powerful processors and excellent reliability.

PRO

Arduino’s series of high performance industry-rated boards.

• NEW IMPROVEMENT: Clear prints on the female header connector, more precise and easier to use the wire.
• The ELEGOO UNO R3 BOARD now uses an ATMega16U2 instead of the ATMega8U2 chip. Faster transfer rates and more memory.
• Control using ATMEL ATMEGA328P chip(the same with Arduino UNO R3)
• 100% compatible with the Arduino IDE and RoHS Compliant
• We have always cared about the customer experience and improve the product function details.

User questions & answers

Question:	Ordered two of these and get the same error message: avrdude: ser_open() : can't open device "\\.\COM4": the system cannot find the file specified
Answer:	18 abd 20 awg work
Question:	is the Elegoo compatible with the official Arduino program? (1.8.1 to be exact
Answer:	Yes, I have done that and it works like any ordinary wire. But it’s important to know that you cannot really put the crimped connector ends back onto the wire after removing. (You can but it’s not made to do so)
Question:	Does this use the CH
Answer:	If you are talking about taking off the black dupont connector and sliding the pinned wire into a new dupont connector, then yes, you can. Each connector has the tab that you would expect in a dupont connector. I just did this to 4 wires putting them into a 4 pin connector. If you want to cut the wires shorter then you will need the dupont pins, a wire stripper, and a crimper to crimp the new pins onto the shortened wires. Sorry this answer is long past when it is likely useful to you, but it may help others.
Question:	Is this the same thing as an arduino
Answer:	Most definitely

Product features

The ELEGOO UNO R3 board can be powered via the USB connection.

The ELEGOO UNO R3 board can be powered with an external power supply.

Excellent welding and production quality to make sure satisfied customer experience

Clearly printed pin names on the header connector, more precise and much easier to use the wires.

Product description

Microcontroller Microchip ATmega328P

Operating Voltage 5V

USB Standard Type B

Digital I/O Pins 14

PWM Digital I/O Pins 6

Analog Input Pins 6

Flash Memory 32 KB

SRAM 2 KB

EEPROM 1 KB

Clock Speed 16 MHz

• This board is your entry to the unique Arduino experience: great for learning the basics of how sensors and actuators work, and an essential tool for your rapid prototyping needs
• Arduino Uno is the most used and documented board in the world
• "Uno" means one in Italian and was chosen to mark the release of Arduino Software (IDE) 1.0, now evolved to newer releases
• It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP header and a reset button
• Arduino is an open-source hardware, software, and content platform with a worldwide community of over 30 million active users

User questions & answers

Question:	Does it come with a usb cable
Answer:	Made in Italy. Correct LED color and screen printing on mine. Don't know why the other reviewers had issues, but as of June 2013 the Arduino is authentic.
Question:	Are the boards sold by Mp3Car Store genuine? Order is fulfilled by Amazon but some sellers are selling fake boards
Answer:	Your best bet is probably gonna be contacting the manufacturer. Unless you can find lengths of key stock shaped the same, and cut down to what is needed... but that is just a guess. Good luck.
Question:	Do these come with the arduino.org label and not arduio.cc? There was a falling out and to support original founders they need to be arduino.cc
Answer:	The box says 16 3/4".
Question:	Is this an original Italy made Arduino?? or china product
Answer:	It comes with a set of 2 Jack stands.