SPECIFICATIONS

HC-05 SMD Module

• Working frequency band: 2.4G

• Communication interface: UART3.3V TTL level

• Working voltage: 3.0-3.6V

• RSSI support: not supported

• Communication level: 3.3V

• Transmitting power: ≤4dBm

• Reference distance: 10m

• Air speed: 2Mbps

• Antenna interface: built-in PCB antenna

• Communication current: 15mA

• Receive sensitivity: -85dBm@2Mbps

• Working humidity: 10%~90%

• Storage temperature: -40 ° C ~ +85 ° C

• Working temperature: -25 ° C ~ +75 ° C

• TXD: Output, URAT output, 3.3V TTL level

• RXD: Input, URAT input, 3.3V TTL level

• CTS: Suspended, serial port flow control is not supported at this time.

• RTS: floating, does not support serial port flow control function

• PCM_CLK: floating, NC

• PCM_OUT: floating, NC

• PCM_IN: floating, NC

• PCM_SYNC: floating, NC

• AIO0: Hanging, NC

• AIO1: Hanging, NC

• RST: Input, pull-up, module reset pin, require low level of not less than 10ms for reset

• VCC: input, power supply pin, requires DC 3.3V power supply, supply current is not less than 100mA

• GND: module common ground

• NC: Hanging, NC

• USB_D- : Dangling, USB function is not supported at this time

• CSB: Hanging, NC

• MOSI: Hanging, NC

• MISO: Hanging, NC

• CLK: floating, NC

• USB_D+: Hanging, NC

• GND: floating or grounded, module common ground

• CON: input, onboard LED light control pin, ground off LED light

• PIO0: Dangling, NC

• PIO1: Hanging, NC

• PIO2: Hanging, NC

• PIO3: Hanging, NC

• PIO4: Hanging, NC

• PIO5: Hanging, NC

• PIO6: Hanging, NC

• PIO7: Dangling, NC

• PIO8: Output, module status indicator output pin

• PIO9: Output, module connection indicator output pin

• PIO10: Hanging, NC

• PIO11: Input, weak pull-down, AT command setting pin, host clear memory (Note 3)

Precautions

Module status indicator output pin, high level output, connect the resistor in series when connecting the LED.

Before the connection, when the host does not record the slave address, it lights up 200ms per second; when the master records the slave address, it lights up for 500ms every 1 second; the slave lights up 200ms per second.

After the connection, the LED flashes and stops.

 

First set the KEY pin and then power on the module to enter the AT command mode. The baud rate is fixed at 38400 and the LED is on for 1 second every 2 seconds.

The module is connected to the indicator output pin, which is a high level output. When connecting the LED, connect the resistor in series.

Before the connection, the lamp pin is output at a constant low level. (LED off)

After the connection, the lamp pin is always at a high level. (LED lights are always on)

 

Input pin, internal pull down. This pin is tied high, the module enters the AT command mode, and the host is used to clear the recorded slave address.

 

HC-05  with Baseboard

Product Manual

• Pin: Output low when not connected, output high when connected, KEY is the AT command setting pin, and the button function is the same.

• Button: Equivalent to pulling 3/4 pin high/lower, used with AT command (most AT commands, you need to press the button to send it).

• Voltage description: The input voltage is 3.2-6V, the power supply comes with anti-reverse connection, but the reverse connection does not work. The indicator indicates: when the host does not record the slave address, it flashes quickly; when the host records the slave address, it flashes slowly; the slave is not connected. When it is flashing; after the connection, the master and slave are both LED flashing and stopping.

• Interface Description: The interface level is 3.2-6V, which can be connected to various single-chip microcomputers (for Arduina, 51, AVR, PIC, ARM, etc.), 5V MCU can be directly connected. Direct connection to the microcontroller serial port, can not pass the MAX232 chip.

• Communication distance: The effective distance is 10 meters in an open environment.

• Communication format: After pairing is successful, it can be used as a full-duplex serial port without any Bluetooth-compatible protocol. The default common communication format: 9600, 1, N (AT command can set the stop bit to 2, odd or even check).

• Master-slave setting: The module is master-slave, the factory default is slave, and the host can be switched by AT command.

• Default: slave, baud rate 9600, pairing password 1234, LED status light on.

 

 

HC-06 SMD Module

Product Parameters

• Working frequency band: 2.4G

• Communication interface: UART3.3V TTL level

• Working voltage: 3.0-3.6V

• RSSI support: not supported

• Communication level: 3.3V

• Transmit power: up to 4dBm

• Reference distance: 10m

• Air speed: 2Mbps

• Antenna interface: built-in PCB antenna

• Communication current: 40mA

• Receive sensitivity: -85dBm@2Mbps

• Working humidity: 10%~90%

• Storage temperature: -40 ° C ~ +85 ° C

• Working temperature: -25 ° C ~ +75 ° C

 

HC-06 with Baseboard

Product Manual

• Pin: Standard UART connection, RXD and TXD are cross-connected with the serial port of the MCU. EN input high level to clear the host pairing memory.

• AT setting: When the module is not paired after power-on, it is the AT mode, and the module parameters can be set. AT setting does not require a button, no need to pull up 34 feet.

• Voltage description: The input voltage is 3.2-6V, the power supply comes with anti-reverse connection, but the reverse connection does not work.

• Status indication: Before the connection, when the host does not record the slave address, it will light 110ms every 200ms seconds; when the master records the slave address, it will illuminate 750ms every 1.5 seconds; the slave will light 110ms every 200ms seconds. After the connection, the indicator light is on.

• Interface Description: The interface level is 3.2-6V, which can be connected to various single-chip microcomputers (for Arduina, 51, AVR, PIC, ARM, etc.), 5V MCU can be directly connected. Direct connection to the microcontroller serial port, can not pass the MAX232 chip.

• Communication distance: The effective distance is 10 meters in an open environment.

• Communication format: After pairing is successful, it can be used as a full-duplex serial port without any Bluetooth-compatible protocol.

• Master-slave setting: The module is master-slave, the factory default is slave, and the host can be switched by AT command.

• Default: slave, baud rate 9600, pairing password 1234, LED status light on