• EOL

Bluetooth module HC-05 - discontinued

Index: MOD-02569

Blootooth v2.0 + EDR class 2 module works with 3.3 V, communicates via serial interface UART (RX, TX pins), supports AT commands. Maximum transmitter power is + 4 dBm, receiver sensitivity is - 85 dBm.

Bluetooth module HC-05 - discontinued
€8.01
€6.51 tax excl.
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Discontinued product
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Manufacturer: OEM

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Product description: Bluetooth module HC-05 - discontinued

Simple communication system based on Blootooth HC-05 v2.0 + EDR module. It communicates through UART serial interface using AT commands. It works with a voltage of 3.3 V, which means thata voltage converteris required to operate with 5 V platforms (e.g.Arduino UnoorLeonardo).

In addition to the HC-05 module, there are also some on the board:

  • LED diode, connected to the status pin PIO1 (when lit, it signals correct connection),
  • the KEY pin connected to the PIO3 pin,
  • resistors protecting UART interface lines - 1 kΩ,
  • supply voltage stabilizer 5 V -> 3.3 V,
  • capacitors filtering the supply voltage,
  • soldered goldpin connectors, enabling the module to be connected to thecontact plateor connected bywires.

Connection

In order to start the module, the supply voltage must be connected: 5 V to pin marked 5.0 or 3.3 V to pin marked 3.3. The module will be detected by the computer as an unknown chip or HC-05, to pair the two devices you need to enter a password:1234. A virtual COM port will appear in the system, through which you can transfer data using any terminal. The board has UART serial interface leads - RX and TX pins, which can be connected e.g. to Arduinoorto a computer viaFTDIadapter.

Although there are projects in the network where HC-06 system is directly connected to 5 V pins, e.g. Arduino Uno, for safety reasons we recommend using3.3 V - 5 Vconverter.

Communication can be tested by pairing the module with a computer and connecting the board viaFTDI converter. In two windows of the terminal, select appropriate communication ports and specify the transmission speed 9600 bps. If the configuration is correct, the text sent from one terminal will appear on the other.

Configuration of the module is done by popular AT commands, to enter this mode you have to connect KEY output up to 3.3 V. Examples of commands are

  • AT- connection testing, in response you get OK.
  • AT+NAME- returns the device name.
  • AT+NAME=XXX- changes module name to XXX.
  • AT+UART- returns UART interface configuration, three values separated by commas: speed, stop bit, parity.
  • AT+UART=9600.0.0- changes the configuration of the UART interface: transmission speed 9600, 1 stop bit, no parity.

Note that the command must be followed by crlf characters. The full set of commands can be found inthe module documentation.

Bluetooth module specification

  • Power supply voltage:
    • 5 V through built-in stabilizer - connection to pin 5.0
    • 3.3 V - connection to pin 3.3
  • The outputs work with 3.3 V
  • Power consumption:
    • Pairing 80 mA
    • Transmission: 8 mA
  • Class 2 - transmitter power max + 4 dBm
  • Range: up to 10 m
  • Standard: Bluetooth 2.0 + EDR
  • SPP profile with settings via AT commands
  • Communication: UART (RX, TX)
  • Default pairing code: 1234
  • Small dimensions: 37 x 17 mm

Same-day shipping

  • Crediting the payment for the order on our account on a business day before 10:00 AM means sending the goods on the same day.
  • All packages are being delivered by GLS Group courier and covered with insurance up to 1200 EUR.
  • You will receive a link to track your package and monitor the progress of delivery as soon as it is shipped.

Terms of delivery 

GLS - zone 1

Austria, Belgium, Croatia, The Czech Republic, Denmark, Germany, Netherlands, Poland, Slovakia 

  • Delivery time: 2-4 days
  • Delivery cost: from 4.18 EUR
  • Insurance: 1200 EUR
GLS - zone 2

Bulgaria, Estonia, France, Hungary, Italy, Latvia, Lithuania, Luxembourg, Portugal, Romania, San Marino, Slovenia

  • Delivery time: 2-5 days
  • Delivery cost: from 5.35 EUR
  • Insurance: 1200 EUR
GLS - zone 3

Finland, Greece, Ireland, Spain, Sweden 

  • Delivery time: 2-7 days
  • Delivery cost: from 7.67 EUR
  • Insurance: 1200 EUR

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