SPECIFICATIONS

Product Introduction

Bluetooth 4.0 module. The connection between the BTV4 module interface and the single-chip microcomputer only requires

Four wires: 5V (VCC) GND TXD RXD

Advantages of this module:

It is equipped with a logic level conversion circuit inside. There is no need to convert the 5V level to 3.3V level externally

2. The power input port is equipped with an anti-reverse circuit. Avoid the problem of module burnout caused by accidentally plugging in the power supply in reverse

First, confirm whether the Bluetooth module of the Android phone hardware supports Bluetooth 4.0 (phone hardware module)

If it's not supported, even if the software is done correctly, it won't connect!

2. Upgrade the system to version 4.3 or later

3. The HMBLEComAssistant.rar in the data package can be used to test the sending and receiving

----HM-10 module configuration requires USB-to-TTL device. Not compatible wirelessly

All configurations are correct! (Because after wireless pairing, the data was directly transmitted.)--

When not paired and connected to the remote device, the LED flashes slowly. AT this time, AT can be used

Commands are used for module-related configurations.

2. The HM-10 module can only recognize all capitalized AT commands and does not support lowercase or mixed case

Co-writing method.

3. The factory default baud rate is 9600 8n1

Slave machine Settings:

After the AT+BAUD0//9600 Settings are completed, the power must be cut off and the system restarted for it to take effect

AT+NAMEAC

AT+PASS000000// must input at least 6 digits

AT+TYPE1

AT+ROLEO

Host Settings:

After the AT+BAUD0//9600 Settings are completed, the power must be cut off and the system restarted for it to take effect

AT+NAMEAC

AT+PASS000000// must input at least 6 digits

AT+TYPE1

AT+ROLE1