User Guide RN24, RN25, RN41, RN42, RN41XV, RN42XV, RN220XP, RN240, RN270, RN274 (Microchip) - 2

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Roving Networks products are not authorized for use in safety-critical 102 Cooper Court applications (such as life support) where a failure of the Roving Networks Los Gatos, CA 95032 product would reasonably be expected to cause severe personal injury or +1 (408) 395-5300 death, unless officers of the parties have executed an agreement specifi- www.rovingnetworks.com cally governing such use. www.rovingnetworks.com Version 1.0r 3/26/13 page 2 Advanced Information Document Outline Chapter 1. Introduction 1.1 Overview 1.2 Evaluation Boards & Reference Designs 1.3 Command Mode vs. Data Mode Figure 1-1: Data & Command Modes 1.3.1 Configuring the Module over the UART Port 1.3.2 Remote Configuration Using Bluetooth 1.3.3 Enter Command Mode Table 1-1: Serial Port Settings Figure 1-2: View Current Settings 1.4 Operating Modes 1.5 Using Dipswitches & GPIO Pins for Configuration Table 1-2: Dipswitch & GPIO Settings Table 1-3: GPIO Assignments 1.6 Making a Bluetooth Connection 1.6.1 Discovery Figure 1-3: Discover the Bluetooth Module 1.6.2 Pairing Figure 1-4: Pair with the Bluetooth Module Figure 1-5: Bluetooth COM Port Settings 1.6.2.1 Pairing with a Computer or Smart Phone 1.6.3 Connecting Figure 1-6: PC’s Bluetooth Radio MAC Address Figure 1-7: Terminals A & B 1.6.4 Security Modes Chapter 2. Command Reference 2.1 Command Syntax Table 2-1: Command Types 2.2 SET Commands 2.2.1 S7,<flag> Table 2-2: 7-Bit Data Mode Values 2.2.2 SA,<value> Table 2-3: Set Authentication Values 2.2.3 SB,<value> Table 2-4: Set Break Values 2.2.4 SC,<value> 2.2.5 SD,<value> 2.2.6 SE,<value> 2.2.6.1 Firmware version 5.40 & Higher 2.2.6.2 Firmware Prior to Version 5.40 Table 2-5: Set Encryption Enable 2.2.7 SF,1 2.2.8 SH,<value> Table 2-6: HID Flag Register Bits 2.2.9 SI,<hex value> 2.2.10 SJ,<hex value> 2.2.11 SL,<char> Table 2-7: UART Parity Values 2.2.12 SM,<value> Table 2-8: Mode Values 2.2.13 SN,<string> 2.2.14 SO,<string> 2.2.15 SP,<string> 2.2.16 SQ,<mask> Table 2-9: Special Configuration Settings Values 2.2.17 SR,<hex value> 2.2.18 SS,<string> 2.2.19 ST,<value> Table 2-10: Configuraion Timer Settings 2.2.20 SU,<value> 2.2.21 SW,<value> 2.2.22 SX,<flag> Table 2-11: Bonding Values 2.2.23 SY,<hex value> Table 2-12: Power Settings (August 2012 and Later) Table 2-13: Power table (before August 2012) 2.2.24 SZ,<value> 2.2.25 S~,<value> Table 2-14: Profile Values 2.2.26 S-,<string> 2.2.27 S?,<flag> Table 2-15: Role Switch Values 2.2.28 S$,<char> 2.2.29 S|,<value> 2.3 GET Commands 2.3.1 D 2.3.2 E 2.3.3 GB 2.3.4 GF 2.3.5 GK 2.3.6 GR 2.3.7 G& 2.3.8 G<char> 2.4 Change & Action Commands 2.4.1 $$$ 2.4.2 --- 2.4.3 + 2.4.4 & 2.4.5 C 2.4.6 C,<address> 2.4.7 CF,<address> 2.4.8 CFI 2.4.9 CFR 2.4.10 CT,<address>,<value> 2.4.11 F,1 2.4.12 H 2.4.13 I,<value 1>,<value 2> 2.4.14 IN<value 1>,< value 2> 2.4.15 IQ 2.4.16 IS<value> 2.4.17 IR<value> 2.4.18 J 2.4.19 K, 2.4.20 L 2.4.21 M 2.4.22 O 2.4.23 P,<char> 2.4.24 Q 2.4.25 R,1 2.4.26 T,<flag> Table 2-16: T Command Values 2.4.27 U,<value 1>,<value 2> 2.4.28 V 2.4.29 W 2.4.30 Z 2.5 GPIO Commands 2.5.1 S@,<hex value> 2.5.2 S&,<hex value> 2.5.3 S%,<hex value> 2.5.4 S^,<hex value> 2.5.5 S*,<hex value> 2.5.6 Controlling the GPIO Pins 2.5.7 Setting GPIO Pin Power-Up Values 2.5.8 Setting GPIO8, GPIO9, GPIO10 & GPIO11 Chapter 3. Advanced Topics 3.1 Power Management Table 3-1: Power Management Methods 3.1.1 Optimizing Inquiry (Discovery) & Page (Connection) Windows 3.1.2 Sniff Mode 3.1.3 Enabling Deep Sleep 3.1.4 Disabling Output Drivers 3.1.5 Lowering Transmit Power Table 3-2: Power Settings 3.2 Configuration Timer Settings Table 3-3: Configuration Timer Settings 3.3 Interfacing to a Microprocessor 3.3.0.1 How do I know the module is ready for command mode? 3.3.0.2 Which hard signals should I connect? 3.4 HCI Mode 3.4.1 HCI over UART 3.4.2 HCI over USB 3.5 Profile Settings & Features Table 3-4: Profile Change Values 3.6 Using GPIO Pins as Modem Control Signals 3.7 Design Concerns 3.7.1 Hardware Signals 3.7.1.1 Reset Circuit 3.7.1.2 Factory Reset GPIO4 3.7.1.3 Connection Status Table 3-5: GPIO5 Status Table 3-6: GPIO2 Status 3.7.1.4 Using the SPI Bus for Flash Upgrades 3.7.1.5 Hardware Connections & Power 3.7.2 LED Status Table 3-7: Green LED Status 3.7.3 Optimizing for Latency or Throughput 3.7.4 Limitations of 7-Bit Data Mode 3.7.5 Common Issues 3.7.5.1 My Bluetooth client can see the FireFly module and its serial service, but I can’t connect 3.7.5.2 How do I change the client’s COM port? 3.7.5.3 How do I connect to more than one FireFly module from the same client at the same time? 3.7.6 Discovery & Connection Example Sequence 3.7.7 Auto-Pairing/Auto-Connection Table 3-8: GPIO Pin/Dipswitch Settings for Auto-Pairing/Connection 3.8 Serial Adapter Configuration Figure 3-1: DB9 Connector Pins Table 3-9: DB9 Connector Pin-Out 3.9 Null Modem & Flow Control Jumpers Figure 3-2: RN422, RN240, RN270 & RN274 Jumpers Figure 3-3: RN220XP Jumpers 3.10 Dipswitch Settings Figure 3-4: DipSwitches Table 3-10: Switch Functions Chapter 4. Applications 4.1 Instant Cable Replacement 4.1.1 Hardware Pairing Using Dipswitches Figure 4-1: Cable Replacement DipSwitch Settings for Pairing Figure 4-2: Setting DipSwitch 2 for Deployment 4.1.2 Software Pairing Using Commands Chapter 5. HID Profile 5.1 Overview Figure 5-1: Typical HID Environments 5.2 HID Firmware Overview 5.2.1 Operational Modes 5.2.2 Profile Configuration 5.2.3 Device Discovery & Pairing 5.2.4 HID Flag Register Table 5-1: HID Flag Register Bits 5.2.4.1 Bit 9 5.2.4.2 Bit 8 5.2.4.3 Bits 7-4 5.2.4.4 Bit 3 5.2.4.5 Bits 2-0 5.3 HID Reports Table 5-2: Data Interpretation 5.3.1 Translation Mode 5.3.2 Keyboard Shorthand Mode 5.3.3 Raw Report Mode 5.3.4 Special Reports & Modes 5.3.4.1 Output Reports Table 5-3: Status Byte Definitions 5.3.4.2 Apple Virtual Keyboard 5.3.4.3 Key Map Register 5.3.4.4 Disconnect Key 5.3.4.5 Consumer Report Table 5-4: Data Byte Format 5.3.4.6 Scan Code Tables: UART (ASCII) to HID Report Table 5-5: UART-to-HID Scan Code Table 5-6: ASCII to HID Report (to Host) Scan Codes 5.4 HID References Appendix A. Factory Defaults Table A-1: Factory Default Settings Appendix B. Command Quick Reference Guide Table B-1: Set Commands Table B-2: Get (Display) Commands Table B-3: Action Commands (Part 1 of 2) Table B-4: GPIO Commands Appendix C. Firmware Revision History C.1 Version 6.15 (3/26/2013) C.2 Version 6.12 (Limited Release) C.3 Version 6.11 C.4 Version 6.10 C.4.1 HID Firmware Known Issues C.5 Version 4.77 (8/10/2009) C.6 Version 4.74 (3/7/2009) Appendix D. Document Information Conventions Used in this Guide Recommended Reading Document Revision History