Table of Contents
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Features
®
• Fully certified Bluetooth
version 4.1 module
• On-board Bluetooth Low Energy 4.1 stack
• ASCII command interface API over UART
• Device Firmware Upgrade (DFU) over UART or Over
the Air (OTA)
• Microchip Low-energy Data Profile (MLDP) for serial
data applications
• Remote commands over-the-air
• 64 KB internal flash
• Compact form factor: 11.5 mm x 19.5 mm x 2.5 mm
• Castellated SMT pads for easy and reliable PCB
mounting
• Environmentally friendly, RoHS compliant
• Certifications: FCC, ISED, CE, QDID, VCCI, KCC
and NCC
Operational
• Single operating voltage: 1.8V to 3.6V (3.3V typical)
• Temperature range: -30°C to 85°C
• Low-power consumption
• Simple, UART interface
2
• Integrated Crystal, I
C Interface, Internal Voltage
Regulator, Matching Circuitry, and PCB Antenna
• Multiple IOs for control and status
• GPIO, ADC
• Three Pulse Width Modulation (PWM) outputs
RF/Analog Features
• ISM Band 2.402 to 2.480 GHz operation
• Channels 0-39
• RX Sensitivity: -92.5 dBm at 0.1% BER
• TX Power: -19.0 dBm to +7.5 dBm
• RSSI Monitor
MAC/Baseband/Higher Layer Features
• Secure AES128 encryption
• GAP, GATT, SM, L2CAP, and integrated public
profiles
• Create custom services using command API
• Keyboard I/O Authentication
• Software configurable role as peripheral or central
and client or server
• Built-in scripting capabilities for hostless operation
2014-2022 Microchip Technology Inc.
®
Bluetooth
Low Energy Module
RN4020
Applications
• Health/Medical Devices
- Glucose meters
- Heart rate
- Scale
• Sports Activity and Fitness
- Pedometer
- Cycling computer
- Heart rate
• Retail
- Point of Sale (POS)
- Asset tagging and tracking
- Proximity advertising
• Beacon Applications
• Internet of Things (IoT) Sensor tag
• Remote Control
- Embedded Device Control
- AV consoles and game controllers
• Wearable Smart Devices and Accessories
• Industrial Control
- Private (custom) services
- Low bandwidth cable replacement
• Smart Energy/Smart Home
Description
Microchip's RN4020 Bluetooth Low Energy Module pro-
vides a highly integrated solution for delivering low-power
Bluetooth 4.1 solutions. The advanced command inter-
face offers rapid time to market. The RN4020 module
complies with Bluetooth specification version 4.1. The
module integrates RF, a baseband controller, and a com-
mand API processor, making it a complete Bluetooth Low
Energy solution. The RN4020 can be used with ultra-low
cost microcontroller for intelligent Bluetooth Low Energy
applications. For simple sensor applications, the RN4020
internal scripting capabilities enable basic functions to be
implemented without the need for external host MCU or
software development tools.
DS50002279D-page 1
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Related Manuals for Microchip Technology RN4020
Summary of Contents for Microchip Technology RN4020
- Page 1 Bluetooth 4.1 solutions. The advanced command inter- • Keyboard I/O Authentication • Software configurable role as peripheral or central face offers rapid time to market. The RN4020 module and client or server complies with Bluetooth specification version 4.1. The • Built-in scripting capabilities for hostless operation...
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Page 2: Table Of Contents
RN4020 Table of Contents Device Overview................................... 3 General Specifications.................................. 6 Microcontroller to RN4020 Interface ............................. 7 Physical Dimensions ..................................8 Typical Application Schematic ..............................11 ASCII Command API .................................. 12 Supported Services ..................................13 Regulatory Approval ................................... 15 Ordering Information................................... 21 Appendix A: Revision History ................................ -
Page 3: Device Overview
RN4020 DEVICE OVERVIEW FIGURE 1-2: RN4020 PIN DIAGRAM The RN4020 Bluetooth Low Energy RF module integrates Bluetooth 4.1 radio baseband, MCU, digital analog I/O, on-board stack, and ASCII command API. Figure 1-1 shows the top view of the module. The... - Page 4 PIO[4] MISO for Diagnostics and Factory Calibration if pin MISO 17 asserted. • MISO • CTS (input) Reserved for CTS if hardware flow control is enabled PIO[5] on the UART; active-low. • PIO[5] 2014-2022 Microchip Technology Inc. DS50002279D-page 4...
- Page 5 SPI/PIO for pins 10-13; active-high selects SPI on pins 10-13 Reserved for RTS if hardware flow control on UART • RTS (output) is enabled. If the data transmission to RN4020 must PIO[6] be halted, assert RTS to high. RTS pin operates • PIO[6] independently from the CTS (pin 14).
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Page 6: General Specifications
Actual results may vary -2.5 17.6 depending on the customer’s design. 20.7 26.9 TABLE 2-2: WEIGHT AND DIMENSIONS 33.6 Specification Description Dimensions 11.5 mm x 19.5 mm x 2.5 mm Weight 1.2g 2014-2022 Microchip Technology Inc. DS50002279D-page 6... -
Page 7: Microcontroller To Rn4020 Interface
FIGURE 3-1: INTERFACE DESCRIPTION Note: If the RN4020 is operated in a hostless mode (without a microcontroller), set the UART_RX pin to high via a 10K resistor to reduce power consumption in Deep Sleep mode. 2014-2022 Microchip Technology Inc. -
Page 8: Physical Dimensions
For optimal radio performance, it is recom- Figure 4-1 shows the physical dimensions for RN4020 mended that the antenna end of the RN4020 module module. Figure 4-2 illustrates the recommended PCB protrudes at least 31 mm beyond any metal enclosure. - Page 9 RN4020 FIGURE 4-2: RN4020 RECOMMENDED PCB FOOTPRINT FIGURE 4-3: RN4020 MODULE MOUNTING DETAILS 2014-2022 Microchip Technology Inc. DS50002279D-page 9...
- Page 10 RN4020 FIGURE 4-4: RN4020 HOST PCB EXAMPLE LAYOUT 2014-2022 Microchip Technology Inc. DS50002279D-page 10...
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Page 11: Typical Application Schematic
TYPICAL APPLICATION SCHEMATIC The following figure shows the schematics for the RN4020 Bluetooth Low Energy PICtail™/PICtail Plus development tool (P/N: RN-4020-PICtail). FIGURE 5-1: RN4020 TYPICAL APPLICATION SCHEMATICS... -
Page 12: Ascii Command Api
RN4020 ASCII COMMAND API • IO - Configure GPIO mask The RN4020 command API is documented in RN4020 - Set/Get GPIO states Bluetooth Energy Module User’s Guide - Ready and Write ADC values (DS70005191). - Read/Write I Commands categorized into... -
Page 13: Supported Services
RN4020 web page. Public and Private Services The RN4020 provides the ability to create private ser- vice. If the services are supported on both end points of a Bluetooth Low Energy connection, such as Central and Peripheral devices, data can be exchanged. - Page 14 RN4020 Soldering Recommendations FIGURE 7-2: ANTENNA PLOT The RN4020 wireless module is assembled using standard lead-free reflow profile IPC/JEDEC J-STD-020. The module can be soldered to the host PCB using standard leaded and lead-free solder reflow profiles. To avoid damaging the module, the following recom- mendations are given: •...
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Page 15: Regulatory Approval
Transmitter approval. Modular approval allows the undesired operation end user to integrate the RN4020 module into a fin- ished product without obtaining subsequent and sepa- A user’s manual for the product should include the fol-... - Page 16 Canada shall display the following notice in a conspicuous loca- tion: The RN4020 module has been certified for use in Can- ada under Innovation, Science and Economic Develop- This radio transmitter [IC: 6514A-RN4020] has been ment Canada (ISED, formerly Industry Canada) Radio approved by Innovation, Science and Economic Standards Specification (RSS) RSS-210 and RSSGen.
- Page 17 Table 8-1, the module shall be installed in accordance with the installa- The RN4020 module can only be sold or operated with tion instructions in this data sheet and antennas with which it was approved. Transmitter may shall not be modified. When integrating a be approved with multiple antenna types.
- Page 18 RF transmitter test reports can be used in part to 8.3.3 APPROVED ANTENNAS demonstrate compliance against the New Zealand “General User Radio License for Short Range For RN4020, the approval is received using the integral Devices”. New Zealand Radio communications (Radio PCB antenna listed in Table 7-2.
- Page 19 Contains transmitter module with certificate number: 8.8.1 LABELING AND USER INFORMATION REQUIREMENTS The RN4020 module is labeled with its own NCC mark and certificate number as below: 8.6.2 4.6.2 HELPFUL WEB SITES Ministry of Internal Affairs and Communications (MIC): http://www.tele.soumu.go.jp/e/index.htm...
- Page 20 China MIIT Notice 2014- 01 of State Radio Regulation Committee (SRRC) certi- The label on the final product that contains the RN4020 fication scheme. Integration of this module into a final module must follow the UKCA marking requirements.
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Page 21: Ordering Information
RN4020 ORDERING INFORMATION The following table provides ordering information for the RN4020 module. TABLE 9-1: ORDERING INFORMATION Part Number Description RN4020-V/RM Standard firmware (GATT, GAP, L2CAP) peripheral and Central mode Note: For custom applications, contact Microchip representative. Go to http://www.microchip.com for current pricing and a list of distributors carrying Microchip products. - Page 22 RN4020 NOTES: 2014-2022 Microchip Technology Inc. DS50002279D-page 22...
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Page 23: Appendix A: Revision History
This revision includes the following changes: TABLE D-1: MAJOR SECTION UPDATES Section Update Description Section 8.9 “UKCA (UK Conformity Assessed)” Added UKCA regulatory approval information. Section 8.10 “China” Added SRRC regulatory approval information. 2014-2022 Microchip Technology Inc. DS50002279D-page 23... - Page 24 RN4020 NOTES: 2014-2022 Microchip Technology Inc. DS50002279D-page 24...
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Page 25: The Microchip Web Site
To register, access the Microchip web site at www.microchip.com. Under “Support”, click “Customer Change Notification” and follow the registration instructions. 2014-2022 Microchip Technology Inc. DS50002279D-page 25... - Page 26 RN4020 NOTES: 2014-2022 Microchip Technology Inc. DS50002279D-page 26...
- Page 27 Microchip intellectual property rights unless otherwise stated. GestIC is a registered trademark 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.
- Page 28 Tel: 46-31-704-60-40 Tel: 631-435-6000 Sweden - Stockholm San Jose, CA Tel: 46-8-5090-4654 Tel: 408-735-9110 UK - Wokingham Tel: 408-436-4270 Tel: 44-118-921-5800 Canada - Toronto Fax: 44-118-921-5820 Tel: 905-695-1980 Fax: 905-695-2078 2014-2022 Microchip Technology Inc. and its subsidiaries DS50002279D-page 28 09/14/21...
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