HC-05 Bluetooth Module Pinout

€4,85 EUR
€4,85 EUR
Subtotal: €4,85

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- Product Inventory Location: China

- EU Countries Delivery Time: 1.5 weeks.

- Other Countries Delivery Time: 2 ~ 2.5 weeks.

HC-05 Bluetooth Module Pinout - OpenELAB

HC-05 Bluetooth Module Pinout

€4,85

HC-05 Bluetooth Module Pinout

€4,85

HC-05 Bluetooth is a master-slave Bluetooth serial module, simply put, when the Bluetooth device and Bluetooth device are paired with a successful connection, we can ignore the internal Bluetooth communication protocol, Bluetooth will be used directly as a serial port. When the connection is established, the two devices use a common channel that is the same serial port, a device to send data to the channel, another device can receive data in the channel.

Pin Function Description:

  • RXD: Receive data terminal, connected to the TX pin of the serial module.
  • TXD: Transmit data terminal, connected to the RX pin of the serial module.
  • GND: Power negative terminal, connected to the GND pin of the serial module.
  • VCC: Power positive terminal, connected to a 5V power supply and the VCC pin of the serial module.
  • EN: Used to set the working mode (1. Working mode, 2. AT command setting mode). This is controlled by a small black button on the module.

Main Parameters:

  • Operating Voltage: DC 3.3V - 5V
  • Operating Role: Slave mode
  • Serial Parameters: 38400 bits/s, 1 stop bit, no parity bit
  • Pairing Code: 1234
  • Device Name: HC-05
  • Connection Mode: Supports connection with any Bluetooth device (Restore default settings with AT command: AT+ORGL)

Core Functions:

  • Status Indicator: The LED indicates the Bluetooth connection status. Rapid red-blue flashing means no Bluetooth connection, slow flashing (every 2 seconds) indicates AT mode and double flashing (twice per second) indicates Bluetooth is connected and the port is open.
  • Reverse Connection Protection: The board is equipped with a reverse connection protection diode and a 3.3V LDO. The input voltage is 3.6V-6V. The current is about 30mA when not paired and about 10mA after pairing. The input voltage must not exceed 7V!
  • Interface Level: 3.3V level, can be directly connected to various microcontrollers (51, AVR, PIC, ARM, MSP430, etc.). 5V microcontrollers can also be connected directly, without the need for MAX232 and should not go through MAX232!
  • Communication Distance: Effective range of 10 meters in open space (Power class: CLASS 2). It may connect beyond 10 meters, but the quality of the connection is not guaranteed.
  • Communication Format: After pairing, it can be used as a full-duplex serial port, supporting 8-bit data bits, 1 stop bit, and optional parity bit communication format, which is the most common format. It does not support other formats.
  • AT Command Mode: You can enter AT command mode by pulling up pin 34 to set parameters and query information.
  • Size: The module size is 3.57cm x 1.52cm, factory-produced with surface-mount technology to ensure quality. It is covered with transparent heat-shrink tubing for dust proofing, aesthetic appearance, and some level of electrostatic protection.
  • Mode Switching: Can switch between master or slave mode via AT commands, and can connect to specific devices using AT commands.
  • Baud Rate: Supports baud rates from 4800bps to 1382400bps.
  • Control Signal: Controlled via serial communication.

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Distributors are not eligible for free shipping.


Shipping Options

We offer competitively priced DHL/FedEx shipping service with tracking to ensure the beloved products will be delivered to you safely and timely (import duty excluded).

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Currently, we store our products in Shenzhen, and we are opening our warehouse in Munich, Germany and Seattle, US in 2024. Overseas warehouse suppliers help to pick, pack and ship your parcel with lower shipping costs, faster delivery and custom free. This service will soon be valid for Europe and the US and we will expand overseas warehouses to other countries in the near future.

Germany DHL Paket Expedited:

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Customs are quite different in each country. please comment while you are placing order about the requirements, we will support as much as possible.


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Please note that it may take 1-2 working days for DHL/FEDEX or 7-10 working days for registered airmail services for the status to update from "Shipped" to "Traceable".

 

 

Effective Date: March 25, 2024

OpenELAB guarantees to provide accurate descriptions and high-quality products. If you encounter any problems with any executed purchase order, please notify OpenELAB within 60 days from the date of shipment.

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We would like to kindly remind you that the customer is responsible for shipping the product back to our warehouse in Europe, US or China, which ever is convenient to you.

Return for Refund: within 5 days of receiving your product. (unopened)
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