User Guide RN4020 (Microchip) - 2

Note the following details of the code protection feature on Microchip devices:
• Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. • There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. • Microchip is willing to work with the customer who is concerned about the integrity of their code. • Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.” Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act. Information contained in this publication regarding device
Trademarks
applications and the like is provided only for your convenience The Microchip name and logo, the Microchip logo, dsPIC, and may be superseded by updates. It is your responsibility to FlashFlex, flexPWR, JukeBlox, KEELOQ, KEELOQ logo, Kleer, ensure that your application meets with your specifications. LANCheck, MediaLB, MOST, MOST logo, MPLAB, MICROCHIP MAKES NO REPRESENTATIONS OR OptoLyzer, PIC, PICSTART, PIC32 logo, RightTouch, SpyNIC, WARRANTIES OF ANY KIND WHETHER EXPRESS OR SST, SST Logo, SuperFlash and UNI/O are registered IMPLIED, WRITTEN OR ORAL, STATUTORY OR trademarks of Microchip Technology Incorporated in the OTHERWISE, RELATED TO THE INFORMATION, U.S.A. and other countries. INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR The Embedded Control Solutions Company and mTouch are FITNESS FOR PURPOSE
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Microchip disclaims all liability registered trademarks of Microchip Technology Incorporated arising from this information and its use. Use of Microchip in the U.S.A. devices in life support and/or safety applications is entirely at Analog-for-the-Digital Age, BodyCom, chipKIT, chipKIT logo, the buyer’s risk, and the buyer agrees to defend, indemnify and CodeGuard, dsPICDEM, dsPICDEM.net, ECAN, In-Circuit hold harmless Microchip from any and all damages, claims, Serial Programming, ICSP, Inter-Chip Connectivity, KleerNet, suits, or expenses resulting from such use. No licenses are KleerNet logo, MiWi, MPASM, MPF, MPLAB Certified logo, conveyed, implicitly or otherwise, under any Microchip MPLIB, MPLINK, MultiTRAK, NetDetach, Omniscient Code intellectual property rights. Generation, PICDEM, PICDEM.net, PICkit, PICtail, RightTouch logo, REAL ICE, SQI, Serial Quad I/O, Total Endurance, TSHARC, USBCheck, VariSense, ViewSpan, WiperLock, Wireless DNA, and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. Silicon Storage Technology is a registered trademark of Microchip Technology Inc. in other countries. GestIC is a registered trademarks of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in other countries. All other trademarks mentioned herein are property of their respective companies. © 2014, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. ISBN: 978-1-63277-072-1
QUALITY MANAGEMENT SYSTEM
Microchip received ISO/TS-16949:2009 certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and
CERTIFIED BY DNV
Tempe, Arizona; Gresham, Oregon and design centers in California and India. The Company’s quality system processes and procedures are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping ==
ISO/TS 16949
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devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified. DS70005191B-page 2  2014 Microchip Technology Inc. Document Outline Preface Introduction Document Layout Conventions Used in this Guide Recommended Reading The Microchip Web Site Development Systems Customer Change Notification Service Customer Support Document Revision History Chapter 1. Introduction 1.1 Bluetooth Low Energy Fundamentals Table 1-1: Characteristic Properties Chapter 2. RN4020 Command Interface 2.1 RN4020 Control Lines Figure 2-1: RN4020 Module Pin Diagram Table 2-1: RN4020 Module Pin Description 2.2 GAP Role Switching Table 2-2: Role Switch Commands 2.3 RN4020 UART-ASCII Command and Responses Table 2-3: RN4020 UART Configuration Table 2-4: Command Descriptions 2.3.1 Set/Get Commands Example 2-1: Set Command Format Table 2-5: UART Baud Rate Settings Table 2-6: SP Level/TX Power Out Table 2-7: Bitmap Features Table 2-8: Bitmap Services Table 2-9: Connection Parameters 2.3.2 Action Commands Table 2-10: Bitmap of “|O” and “|I” Commands 2.3.3 I2C™ Commands Table 2-11: I2C™ Commands 2.3.3.1 Enable I2C 2.3.3.2 Disable I2C 2.3.3.3 I2C EEPROM Access 2.3.3.4 I2C Basic Operations Table 2-12: I2C™ Events 2.3.3.5 Example of Accessing the Microchip I2C EEPROM 24LC512 Figure 2-2: Writing Data via the I2C™ Interface Figure 2-3: Reading Data via the I2C™ Interface 2.3.4 PWM Commands Figure 2-4: PWM Waveform Table 2-13: PWM Parameters 2.3.5 Characteristic Access Commands 2.3.5.1 Definition of Characteristic Access Commands Example 2-2: Listing Client Service and Characteristics 2.3.6 Private Service Configuration Commands Table 2-14: Security flags of characteristic 2.3.7 Microchip MLDP Commands 2.3.7.1 Microchip Low-Energy Data Profile (MLDP) 2.3.7.2 MLDPv2 2.3.8 RN4020 Scripting Commands 2.3.8.1 RN4020 Scripting Capabilities 2.3.8.2 Event Driven Table 2-15: List of Events and Event Labels 2.3.8.3 Comments 2.3.8.4 Variables 2.3.8.5 Remote Function Call Example 2-3: Function Example 2.3.9 RN4020 Script Commands Table 2-16: “WR” Command Input Parameters and Associated Events 2.3.10 Remote Command 2.4 Summary of RN4020 UART Outputs 2.4.1 ASCII Commands with Non-Standard Response Table 2-17: Non-Standard Response for ASCII Commands 2.4.2 UART Response to PIO Switches Table 2-18: UART Response to PIO Events 2.4.3 UART Notifications Table 2-19: UART Notification 2.5 Device Firmware Upgrade 2.5.1 DFU Commands Chapter 3. Application Examples 3.1 Demonstration with a Smart Device 3.1.1 Setup 3.1.2 Running the Demonstration Figure 3-1: Discovering the RN4020 Module Figure 3-2: Reading the Model Number String From the Device Information Service Figure 3-3: Reading Battery Level in Battery Service Figure 3-4: Notification Result of Battery Level Example 3-1: User-Defined Private Services Figure 3-5: Private Services Discovered After Power Cycle Figure 3-6: Reading the Private Characteristic Figure 3-7: Writing Values to Private Characteristics Figure 3-8: Notification to Private Characteristic 3.2 Connecting Two RN4020 Modules 3.2.1 Configure the First Device (Module A) 3.2.2 Configure the Second Device (Module B) 3.2.3 Connecting the Two Devices 3.2.4 Checking Server and Client Services Table 3-1: Module A Server and Client Services Table 3-2: Module B Server and Client Services 3.2.5 Setting the Battery Service 3.3 MLDP Demonstration 3.4 RN4020 Scripting Demonstration 3.4.1 Setting Up Private Service and Characteristics 3.4.2 Script Input 3.4.3 Running the Script Appendix A. PICtail™ Daughter Board Schematics Figure A-1: RN4020 Module Figure A-2: PIC18LF25K50-I/ML Device Figure A-3: 28-pin and 30-pin PICtail™ Connectors Figure A-4: RN4020 Module Breakout Pins Figure A-5: Status LEDs Figure A-6: Voltage Regulator Figure A-7: Decoupling Capacitor for the PIC18LF25K50-I/ML Device Figure A-8: Test Switch Figure A-9: ICSP™ Connector Corporate Office Atlanta Austin, TX Boston Chicago Cleveland Fax: 216-447-0643 Dallas Detroit Houston, TX Indianapolis New York, NY San Jose, CA Canada - Toronto Fax: 852-2401-3431 Australia - Sydney China - Beijing China - Shanghai India - Bangalore Korea - Daegu Korea - Seoul Singapore Taiwan - Taipei Fax: 43-7242-2244-393 Denmark - Copenhagen France - Paris Germany - Dusseldorf Germany - Pforzheim Italy - Milan Italy - Venice Spain - Madrid Worldwide Sales and Service