1 Core module uses HC-06 from the module, including the interface leads VCC, GND, TXD, RXD, Reserve LED status output pin, the microcontroller can be connected via Bluetooth to determine whether the state of the pin, KEY pin slave invalid
2, led Indicates Bluetooth connection status, Flashing indicates no Bluetooth connection, Always indicate Bluetooth connection and open ports
3, floor 3.3V LDO, Input voltage 3.6 ~ 6V, when the unpaired current is about 30mA, paired about 10mA, Input voltage hibit more than 7V!
4, interface level 3.3V, can be directly connected to various microcontrollers?51, AVR, PIC, ARM, MSP430, etc.?, 5V MCU also can be connected directly, without MAX232 MAX232 can not go through!
5, Open to the effective distance of 10 meters, More than 10 meters are possible, but do not make this connection the of distance
6, when the pair later Full duplex serial port Use, without having to know any Bluetooth tocol, but only supports 8 data bits, 1 stop bit, no parity Communication format, which is the most common communication format does not support other formats.
7, Bluetooth connection is not established When setting the baud rate support, through the AT command name, password pair, Power-down save parameter settings . After the Bluetooth connection is automatically switched to transparent mode
8, compact ?3.57cm * 1.52cm?, Chip duction Ensure the placement . Transparent shrink tube and sleeve, dust and beautiful, and there is a certain anti-static capabilities.
9, The link from the machine, PC, Bluetooth host, with most Bluetooth enabled phone, PDA, PSP and other intelligent terminal with Bluetooth pairing with a variety of functions from, between slaves can not be paired.
TXD: Send side, generally expressed as their transmitter, RXD normal communication must be connected to another device.
RXD: the receiver, generally designated himself on the receiving end, Normal communication TXD must be connected to another device.
When normal communication itself TXD RXD always connected device!
Since the resumption of spontaneous: RXD when normal communication TXD connected to other devices, so if you want to receive data sent by itself as the name suggests, is to receive the data they transmit their own, that is directly connected to its own TXD RXD, used and receive test itself is it normal, Is the fastest and easiest way to test when there is a blem to do the first test to determine if your blem . Also known as the loopback test.