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User Manual of HC-42 Bluetooth Serial Port Communication Module G

athering information and Carrying Dreams

Website：

http://www.hc01.com

Guangzhou HC Information Technology Co., Ltd

Address: Room 608, No.19, Jiangong Road, Tianhe Science Park, Tianhe District, Guangzhou City, Guangdong Province

Technical customer service QQ: 445253184 Sales hot line: 020-8408-3341

PAGE

User Manual for HC-42 Bluetooth Serial Port Module

Contents

1. Introduction of Module

1.1

Features

………….……………………………………………………………………………………………………………………………………..……………3

1.2

Basic parameters

.……………………………………………………………………………………………………………………………………………..……3

1.3

Electrical features

………………………………………………………………………………………………………………………………………..……3

1.4

Products

………….……………………………………………………………………………………………………………………………………………..……4

2. Connection Description

2.1

Operating Principle

………………………………………………………………………………………………....………………………………………4

2.2

Connection between the module and other equipment like MCU

……………………………………………………………………4

2.3

Connection between module and mobile phone

………………….……………………………………….………………………………....5

3. Rapid Testing

3.1

Connection between parameter frame and module

……………………………………………………………….…………………...5

3.2

Communication test

…………………………………..…………………………………………………………………….………………………..5

4. Development and Application

4.1

Definition of pins

…………………………………………………………………………………………………………………………………………6

4.2

Embedding mode

……………………………………………………………………………………………………………………………………………8

4.3

Reference connection circuit

…………………………………………………………………………………………………………………………9

5. AT Command

5.1

Module parameters setting-AT command

……………………………………………………………………………………..10

5.2 C

ommand set

………………………………………………………………………………………………………………………………….….10

5.3

Introduction of AT command

……………………………………………………………………………………………..….….…….11

6. About HC

6.1

Company profile

…………………………………………………………………………………………………………..…………………………....17

Summary of content (19 pages)

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User Manual of HC-42 Bluetooth Serial Port Communication Module Website：http://www.hc01.com Gathering information and Carrying Dreams User Manual for HC-42 Bluetooth Serial Port Module Contents 1. Introduction of Module 1.1 Features………….……………………………………………………………………………………………………………………………………..……………3 1.2 Basic parameters.…………………………………………………………………………………………………………………………………………… ..……3 1.3 Electrical features………………………………………………………………………………………………………………………………………..……3 1.4 Products………….
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User Manual of HC-42 Bluetooth Serial Port Communication Module Website：http://www.hc01.com Release Date: June 18, 2018 Software Version：HC-42V2.0 Hardware Version：V1.0 Gathering information and Carrying Dreams Version: V2.0 2018-06-18 2018-01-12 PAGE 2 Guangzhou HC Information Technology Co., Ltd Address: Room 608, No.
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Gathering information and Carrying Dreams User Manual of HC-42 Bluetooth Serial Port Communication Module Website：http://www.hc01.com 1. About the Module HC-42 1.1 Features The HC-42 Bluetooth serial communication module is a new generation of data transmission module based on Bluetooth Specification V5.0 BLE Bluetooth protocol. Its radio operating frequency band is 2.4GHz ISM, and the modulation methodis GFSK. The module has a dimension of 26.9mm×13mm×2.0m and integrates stamp hole packaging process.
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User Manual of HC-42 Bluetooth Serial Port Communication Module Website：http://www.hc01.com Gathering information and Carrying Dreams 1.4 Products Model HC-42 Communica Operating Communica Air -tion protocol frequency -tion range data rate Bluetooth 4.0 2.4G 40m 1Mbps Dimensions Embedding Features mode 26.9*13*2mm SMT BLE low power consumption HC-02 Bluetooth 2.0 2.4G 10m 2Mbps 26.9*13*2mm SMT Dual-mode Bluetooth HC-05 Bluetooth 2.0 2.4G 10m 2Mbps 26.
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User Manual of HC-42 Bluetooth Serial Port Communication Module Website：http://www.hc01.com Gathering information and Carrying Dreams ①: When the module is connected to the MCU with the power supply system of 3.3V, the serial ports can be cross connected.
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User Manual of HC-42 Bluetooth Serial Port Communication Module Website：http://www.hc01.com Gathering information and Carrying Dreams 3. Rapid Testing 3.1 Connection between parameter frame and module Put the HC-42 Bluetooth module into the HC-USB-P parameter frame, as shown in the figure. The module can be tested by plugging directly into the USB interface of the PC. 3.2 Communication test Visit HC’s official website （http://www.hc01.com）to download HID serial port helper.
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User Manual of HC-42 Bluetooth Serial Port Communication Module Website：http://www.hc01.com I/O direction Gathering information and Carrying Dreams PINS Definitions Explanations 1 TXD（P0.06） O UART output port, 1.8~3.6V level , consistent with operating voltage 2 RXD（P0.08） I, pull up UART input port, 1.8~3.6V level, consistent with operating voltage 3 P0.07 No setting, suspended 4 P0.05 No setting, suspended 5 P0.
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User Manual of HC-42 Bluetooth Serial Port Communication Module Website：http://www.hc01.com Gathering information and Carrying Dreams Note ① : The Module has an on-board indicator LED2 (near the first pin of the module). The 14-pin LEDCON of the Module is the control pin of the on-board indication LED2. When the pin is grounded, the Bluetooth indication LED inside the module is turned off. When the foot is suspended, the Bluetooth indication LED is turned on.
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User Manual of HC-42 Bluetooth Serial Port Communication Module Website：http://www.hc01.com Gathering information and Carrying Dreams 4.3 Reference connection circuit PAGE 9 Guangzhou HC Information Technology Co., Ltd Address: Room 608, No.
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User Manual of HC-42 Bluetooth Serial Port Communication Module Website：http://www.hc01.com Gathering information and Carrying Dreams 5. AT Command 5.1 Module parameters setting-AT command 1. AT command are used to set the parameters of the module. The module can operate the AT command in the disconnected state and enter the serial port transparent transmission mode after connection. 2.
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Gathering information and Carrying Dreams User Manual of HC-42 Bluetooth Serial Port Communication Module Website：http://www.hc01.com 5.3 Introduction of AT command 5.3.1 Test command Command Response Explanations AT OK Test 5.3.2 Viewing software versions command Command AT+VERSION Response OK+VERSION=HC-42 V2.0.180601 Explanation www.hc01.com Obtain software version and official website address 5.3.
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Gathering information and Carrying Dreams User Manual of HC-42 Bluetooth Serial Port Communication Module Website：http://www.hc01.com Examples: Send: AT+RFPM=-4 Return: OK+RFPM=-4 (Set RF power as -4dBm) Send: AT+RFPM Return：OK+RFPM=-4 (Inquire RF power as -4dBm) 5.3.
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Gathering information and Carrying Dreams User Manual of HC-42 Bluetooth Serial Port Communication Module Website：http://www.hc01.com Examples: Send: AT+PM=1 Return: OK+PM=1 (Modify into power consumption mode 1) Send: AT+PM Return: OK+PM=1 (Inquire as power consumption mode 1) Reminder: In the low power consumption mode, the average operating current of the module is related to the broadcast interval. If the broadcast interval is increased, the operating current will decrease.
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User Manual of HC-42 Bluetooth Serial Port Communication Module Website：http://www.hc01.com Gathering information and Carrying Dreams Or in other words: Only when AT+SLEEP and LPIN are both set to low power consumption, the module can be in low power consumption. Reminder: The interval between entering and exiting from low power consumption is recommended to be greater than 100ms. 5.3.
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User Manual of HC-42 Bluetooth Serial Port Communication Module Website：http://www.hc01.com Gathering information and Carrying Dreams 5.3.12 Master-slave setting command Response Explanation Details S: Slave (default) P: Peripheral (default) AT+ROLE OK+ROLE=x Inquire the current role of M: Master module C: Central S 跟 P 是一样，M 跟 C 也是一样 S Is the same as P, M also same as C. AT+ROLE=x OK+ROLE=x Set the current role of module S and P are slaves, M and C are masters.
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Gathering information and Carrying Dreams User Manual of HC-42 Bluetooth Serial Port Communication Module Website：http://www.hc01.com Examples: Send: AT+IBUUID Return: OK+IBUUID=FDA50693-A4E2-4FB1-AFCF-C6EB07647825 Send: AT+IBUUID=FDA50693-A4E2-4FB1-AFCF-C6EB07647825 Return: OK+IBUUID=FDA50693-A4E2-4FB1-AFCF-C6EB07647825 5.3.
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User Manual of HC-42 Bluetooth Serial Port Communication Module Website：http://www.hc01.com Gathering information and Carrying Dreams 6. About HC Guangzhou HC Information Technology Co., Ltd was established in September 2008 and is a pioneer in the field of wireless data transmission. For more than ten years, HC has always adhered to independent research and development and provided wireless data transmission solutions for the majority of technology companies.
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This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
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Integration instructions for host product manufacturers according to KDB 996369 D03 OEM Manual v01 2.2 List of applicable FCC rules[and ISED Radio Standards Specifications] CFR 47 FCC PART 15 SUBPART C has been investigated. It is applicable to the modular. 2.3 Specific operational use conditions This module is stand-alone modular.