Wireless Bluetooth Serial Port Transmission Module Wireless Serial Port Communication HC-06 Slave Bluetooth ModuleItem NO.: HC-06

HC-06 Wireless Bluetooth Serial Port Transmission Module

Product Characteristics:

1. The core module uses HC-06 slave module, with interfaces including VCC, GND, TXD, RXD, and reserved LED status output pins. The microcontroller can use this pin status to determine whether Bluetooth has been connected, and the KEY pin is invalid for the slave

2. The LED indicates the Bluetooth connection status, flashing indicates no Bluetooth connection, and a constant light indicates that the Bluetooth is connected and the port is open

3. Base plate 3.3V LDO, input voltage 3.6-6V, current about 30mA when not paired, about 10mA after pairing, input voltage must not exceed 7V!

4. The interface level is 3.3V, which can be directly connected to various microcontrollers (51, AVR, PIC, ARM, MSP430, etc.). 5V microcontrollers can also be directly connected, without the need for MAX232 and cannot pass through MAX232!

5. The effective distance in an open area is 10 meters, and it is possible to exceed 10 meters, but there is no guarantee of the connection quality for this distance

6. After pairing, when using a full duplex serial port, there is no need to know any Bluetooth protocol, but only supports communication formats with 8-bit data bits, 1-bit stop bits, and no parity check. This is also a commonly used communication format and does not support other formats.

7. When a Bluetooth connection is not established, it supports setting the baud rate, name, pairing password through AT commands, and saving the set parameters after power failure. Automatically switch to transparent mode after Bluetooth connection

8. Compact in size (3.57cm * 1.52cm), factory produced SMT to ensure SMT quality. And a transparent heat shrink tube is installed, which is dustproof and aesthetically pleasing, and has a certain degree of anti-static ability.

9. This link is a slave device that can pair with various computers with Bluetooth functionality, Bluetooth hosts, most smartphones with Bluetooth, PDAs, PSPs, and other intelligent terminals. Slaves cannot pair with each other.

Common Sense (Very Important):

● TXD: The sending end, usually represented as its own sending end, must be connected to another device's RXD for normal communication.

● RXD: The receiving end, usually represented as its own receiving end, must be connected to another device's TXD for normal communication.

● During normal communication, the TXD itself is always connected to the RXD of the device!

● Self receiving spontaneity: During normal communication, the RXD is connected to the TXD of other devices. Therefore, if you want to receive the data you send, as the name suggests, it means that you receive the data you send. That is, your own TXD is directly connected to the RXD to test whether your transmission and reception are normal. This is a fast and simple testing method. When problems occur, you should first perform this test to determine whether the product is faulty. Also known as loop back testing.