Please note that the BT5701 serial Bluetooth adapter only has a male 9-pin slave. If you need a host or a female 9-hole serial Bluetooth adapter, you can choose to purchase our company’s BT578 serial Bluetooth adapter. BT578 can completely replace BT5701. And the function is stronger, the appearance is more beautiful.
BT578 serial port Bluetooth adapter Taobao link:https://item.taobao.com/item.htm?spm=a1z10.3-c.w4002-1919973953.12.5c53351bcgfZic&id=18352550736

■Product functions and features  
The main function of the BT5701 serial Bluetooth adapter is to replace the traditional RS232 serial communication cable. BT5701 has built-in Bluetooth SPP protocol software, which can transform the wired serial connection into a wireless Bluetooth serial connection, thereby replacing the traditional serial cable connection and realizing wireless serial communication. For those applications in the industrial, medical, commercial, surveying and mapping fields that do not want to have too many connections, such as total stations, electronic scales, network debugging equipment, surveying and mapping instruments, scanners, serial printers, etc., this product provides a Simple and fast wireless serial communication solution.

● Bluetooth protocol software is embedded in this product, so there is no need to install additional drivers. It can be used in an operating system with an operating interface, and it can also be used on any device without an operating interface but with an RS232 serial port.
● Users do not need to know the professional knowledge of Bluetooth technology. For users, it is still ordinary serial communication, which is no different from traditional serial cable connection. Application developers only need to write serial communication code.
● Support Bluetooth Serial Port Profiles（SPP）, Bluetooth serial communication can be carried out with Bluetooth-enabled notebook computers, desktop computers equipped with USB Bluetooth adapters, handheld Bluetooth PDAs, Bluetooth GPS and other devices that support Bluetooth SPP services.
● Built-in high-quality 400mA lithium battery, which can provide nearly 24 hours of working power to the adapter. The user can supply power to the adapter and charge the internal lithium battery through the MiniUSB interface on the adapter.
● During use, be sure to set the baud rate of BT5701 to be consistent with the baud rate of your device. The user can directly plug the BT5701 into the serial port of the computer and set eight different waves from 1200bps to 115200bps through AT commands. Special rate（The default value is 9600,n,8,1）, You can also set a more personalized Bluetooth name for the device, or modify the Bluetooth pairing password. For detailed setting steps, please refer tohttp://www.irxon.com/application/viewthread.php?tid=130&extra=page%3D1
● Transmitting power complies with Bluetooth Class2 standard, built-in high-sensitivity PCB printed antenna, stable communication distance up to about 12 meters, and wireless serial communication through walls.
● Adopt CSR Bluetooth chip that supports Bluetooth 2.0 standard, its enhanced error rate performance and automatic frequency hopping technology can ensure efficient and safe communication, and has stronger anti-interference ability to ensure the stability and reliability of communication.

■Markets and Applications  
The purpose of using BT5701 is to replace the original serial cable connection, but how to replace it, the user should have a clear plan before purchasing the product. The following are several typical usage methods of BT5701 products.
● The BT5701 slave is connected to Bluetooth master devices such as Bluetooth laptops, USB Bluetooth adapters, Bluetooth PDAs, windows mobile systems with virtual Bluetooth serial port functions, and Android phones. This is a common way to use BT5701. The slave is installed on the serial device and waits for the Bluetooth master to find it. When the master finds the BT5701 slave, it sends a pairing request from the master and enters the correct slave pairing password on the master for verification.（BT5701 factory default pairing password is 0000）, After the pairing connection is completed, the system of the Bluetooth master device will assign a Bluetooth virtual serial port number for the Bluetooth connection. In the future, applications running on the master device only need to set the serial port number to communicate with the BT5701. Serial port communication with serial port devices such as serial port printers, total stations, electronic scales, network debugging devices, surveying and mapping instruments, scanners, etc. connected to the serial port Bluetooth adapter. For detailed communication examples or setup tutorials, please refer tohttp://www.irxon.com/application/forumdisplay.php?fid=8

It should be noted that BT5701 is to replace the original serial cable, so it is communicated on the computer. When the serial cable was used before, what kind of serial communication software was used on the computer side. When using the BT5701 serial Bluetooth connection, the same is used on the computer side. The serial communication software can be operated. If it is used on an Android phone or a handheld terminal such as a PDA with serial Bluetooth communication capabilities, you need to develop a software that can perform serial data communication normally on the Android or PDA side. For example, if you want to To perform serial Bluetooth communication between the Android mobile phone and the total station, you need to download the authorized road analysis palm test software on the Android mobile phone.

■Main specifications  
● Executive standard: Bluetooth SIG v2.0,
● Bluetooth protocol: Bluetooth serial port profile (SPP)
● Communication rate: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200bps
● Modulation method: 2.4G direct sequence frequency hopping（FHSS）
● Communication distance: 15 meters in open space
● Transmitting power: 3 dBm, Class2
● Receiving sensitivity: -80dBm
● Working current/pairing current: 8mA/25mA 
● Size and weight: 62x34x14mm 30g

■Product packing list  
● One BT5701 serial Bluetooth adapter
● A 410mAh lithium battery（Built-in）
● USB interface 220V-5V power adapter one
● A USB-MiniUSB power supply cable
● A copy of the instruction manual
● A certificate of conformity and a warranty card

■Purchase instructions  

● The RS232 interface of BT5701 has only male headers, and the factory default serial port parameters are: baud rate 9600, 8 data bits, 1 stop bit, no parity digit, pairing password is 0000, including baud rate and parity digit The password and password can be modified. Please confirm the factory serial port parameters of your device before purchasing. If the baud rate and other parameters are inconsistent, you can ask us to change it before delivery, or change it after receiving the goods, such as BT5701 and the device''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s serial port If the parameters are not set to be consistent, serial Bluetooth communication is not possible. If the serial port on the device is a DB9-M male connector, you can consider using our male-female adapterBT578 serial port Bluetooth adapter Taobao link:https://item.taobao.com/item.htm?spm=a1z10.3-c.w4002-1919973953.12.5c53351bcgfZic&id=18352550736 

■Quality Assurance Statement 

In order to allow you to use this product with confidence, according to the relevant provisions of the national three-guarantee law, Mizuki provides you with a quality assurance commitment of replacement within three months from the date of purchase and warranty within one year. The purchase date is subject to the date stated on the user''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s purchase transaction record or receipt.

1. During the replacement period, if the product has quality problems, you can go to the dealer or Mizuki to replace the new product for free with the proof of purchase and the essential warranty card. During the warranty period, if the product has quality problems, you can apply for free warranty service at the dealer or Mizuki Co., with the proof of purchase and the essential warranty card.

2. Out-of-warranty faulty products or damaged products for non-quality reasons can enjoy free manual maintenance service as appropriate. If the proof of purchase or warranty card is lost, but it is verified by our company that it is Mizuki Walker, you can also enjoy the maintenance service free of manual fees as appropriate. If it is delivered by post for repair, the round-trip freight will be borne by the customer.