Radicom Research RB8762CMF Series User manual

Radicom Research, Inc.
Designer’s Guide for
RB8762CMF Series
(RoHS BLE 5.0 MESH Serial Bluetooth Modules)
Compliant
Date: 09/30/2019
Doc#RRD2Z50-20190903001-A07-C3
RB8762CMF
RB8762CMF EVK dongle

RB8762CMF Designer’s Guide (RRD2Z50-20180802001-A07-C3)
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Table of Contents
Radicom Research, Inc.................................................................................................1
Table of Contents .....................................................................................................2
Introduction..............................................................................................................2
RB8762CMF EVK and BLE Functionality...............................................................4
Features....................................................................................................................5
Approvals .................................................................................................................6
Electronic Characteristics.......................................................................................6
Model Naming System.............................................................................................7
Model and Ordering Information ............................................................................8
RB8762CMF Module Mechanical Dimensions & Pin Definitions .........................9
RB8762CMF-D Mechanical Dimensions & Pin Definitions .................................11
Layout Design Suggestions..................................................................................12
RB8762CMF EVK Development Board Figure and Functions............................13
Operating RB8762CMF-D ......................................................................................14
Supported AT Command List................................................................................17
AT-Command in Docklight ....................................................................................19
OTA Upgrade Firmware .........................................................................................20
How to access RB8762CMF from smartphone....................................................22
The wired method upgrades RB8762CMF firmware code ..................................24
FCC & IC Label and Model Identification .............................................................25
Important Regulatory Compliance and User Information...................................25
CE Declaration of Conformity ...............................................................................28
Limited Warranty....................................................................................................29
Contacting Radicom Research .............................................................................31
Information furnished by Radicom Research is believed to be accurate and reliable. However Radicom
Research assumes no responsibility for its use, or any infringement of patents or other rights of third
parties that may result from its use. Radicom Research reserves the right to change circuitry at any
time without notice. This document is subject to change without notice.

RB8762CMF Designer’s Guide (RRD2Z50-20180802001-A07-C3)
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Introduction
Thank you for choosing Radicom RB8762CMF Module. We are committed to providing you quality
service and technical support. The RB8762CMF modules are designed to meet OEM’s needs of
embedding low power, wireless data connectivity to their products. The RB8762CMF family offers a
quick and simple solution for wireless Bluetooth communications.
Radicom RB8762CMF module is designed to meet the emerging market for Bluetooth 5.0
applications. These embedded Bluetooth 5.0 modules integrate entire profiles, applications, and
Bluetooth protocol stack, and no external processor is needed. It also contains 256KB flash memory
and 80KB RAM.
The RB8762CMF can be factory configured for other Bluetooth cost-effective and power-efficient
wireless consumer products such as watches, medical sensors, mice, TV remote controls and fitness
trainers. Contact Radicom for help to add the BLE Data Protocol functionality to your 4.2 Bluetooth
device or for help in determining which Bluetooth Module is the best fit for your particular Bluetooth
application.
The RB8762CMF family modules can be powered with standard 1.8V~3.6V low power. In lowest
mode it consumes only 1.1 nA level power and will wake up in few hundred microseconds. The
RB8762CMF family provides superior performance in the presence of interference from 802.11
(WiFi) wireless devices and other 2.4GHz radios.
The RB8762CMF modules support quick connections and data transfers allowing an application to
establish a Bluetooth connection within a few milliseconds for short communication bursts before
quickly disconnecting the Bluetooth connection to save power. It takes much less time to make a
connection than conventional Bluetooth wireless technology and consumes approximately only 1/20th
of the power of Bluetooth Basic Rate.
The RB8762CMF is available in surface mount (SMD) or through-hole (DIP) hardware designs. The
RB8762CMF module is the surface mount model. The RB8762CMF can also mounted on a
conversion board to create the RB8762CMF-HM model for serial through-hole designs.

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RB8762CMF EVK and BLE Functionality
Radicom provides RB8762CMFEVK (development kits) as a quick platform for testing and
evaluating the RB8762CMF and RB8762CMF-HM Bluetooth modules. The kit includes two
RB8762CMF modules mounted on the RB8762CMF-HM DIP Module. Each RB8762CMF-HM is
installed into a RB8762CMF-MB evaluation board. One of the RB8762CMF-HM is configured to
operate in BLE Data Protocol Master Mode. The other RB8762CMF-HM is configured to operate in
BLE Data Protocol Slave mode. The RB8762CMF-MB boards have an RS232 Serial Port connector
and USB interface that allows the user to immediately connect to any standard serial port to evaluate
the Bluetooth modules.
The RB8762CMF modules are defaulted to use the BLE Data Protocol. For BLE Data Protocol
operation, you need one Radicom Master and one Radicom Slave module. The Slave Model
RB8762CMF-S advertises or broadcasts the Bluetooth signal. The Master Model RB8762CMF-M
will scan for Bluetooth signals and then request a Bluetooth connection. The RB8762CMF-S Slave
can then accept the connection for BLE Data transfers. The RB8762CMF-S Slave can also operate
with remote devices that also support the BLE Data Protocol.

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Features
Support the Bluetooth 5.0 core specification
Frequency Range 2.402 –2.480 GHz
Integrate MCU to execute Bluetooth protocol stack
Ultra low power consumption with intelligent PMU
Support BT5.0 MESH
Supports Master and Slave modes
Support fully multiple Low Energy states
Support LE L2CAP Connection Oriented Channel Support
Support LE low duty directed advertising
Support LE data length extension feature
Integrated Bluetooth low energy stack including ATT, GATT, SMP, L2CAP, GAP
Generic Applications for GAP Central, Peripheral, Observer and Broadcaster Roles
Support OTA (Over-the-Air) programming
Firmware upgradeable through serial port
Support internal 32KHz OSC or external 32KHz clock input for low power mode
Low power 3.3V operation
TX Power: 4.0 dBm Max ~ RX Sensitivity: -97dBm Min
Range: Up to 20 meters (line of sight)
15 GPIOs, 3 configurable LED pins
Hardware Keyscan and Quad-decoder
Embedded 4MB flash
Embedded IR transceiver
Embedded 8-CH 12-bit ADC
Embedded G-sensor
Support AES128/192/256 encrypt/decrypt engine
Serial Interface ( SPI / I2C / PWM)
Support 3wire/2wire SPI
Wake-up interrupt
Watch Dog Timer
Small sizes:RB8762CMF ~ 23.5x13.1 mm
RB8762CMF-D ~ 90x20 mm
On-board microprocessor, RAM and ROM
On-board antenna or on-board U.FL connector for external antenna
0°C to +70°C temperature operating

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Approvals
Pending
FCC Certification
47 CFR FCC Part 15.247 & ANSI C63.10 2013 KDB 558074 D01 v03r05
FCC 1.1310
CE Certification
EN 300 328 V2.1.1
ETSI EN 301 489‐17 V2.2.1 / ETSI EN 301 489‐1 V1.9.2
EN 61000‐3‐2: 2014 / EN 61000‐3‐3: 2013
EN 55032: 2015 / EN 55024: 2010+A1: 2015
ETSI EN 301 489‐17 V2.2.1
ETSI EN 301 489‐1 V1.9.2
EN 61000‐3‐2: 2014
EN 61000‐3‐3: 2013
EN 55032: 2015
EN 55024: 2010+A1: 2015
IC Certified
RoHS Compliant
Electronic Characteristics
Minimum
Typical
Maximum
Unit
Operation voltage
2.35
3.3
3.6
V
Output Power
4.0
dBm
Sensitivity
-92.5
dBm
Current Consumption *
Pairing mode
4.4
mA
RX active
6.9
mA

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Model Naming System
Product Series: RB8762CMF-(X)
C: BT 5.0
Optional
D: EVK dongle

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Model and Ordering Information
Model Numbers
Description
RB8762CMF
Surface mount RB8762CMF Bluetooth module with on-board antenna.
RB8762CMF-D
RB8762CMF EVK dongle via USB interface.

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Size:
Module= 23.5x13.1 x 2.75 mm
RB8762CMF Module Mechanical Dimensions & Pin
Definitions
Side View
Unit: mm

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Pin Definitions

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RB8762CMF-D Mechanical Dimensions & Pin Definitions
Size:
RB8762CMF-D= 90 x 20 x 5.6 mm
Pin Define:
Top View
Unit: mm
90mm
20mm

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Layout Design Suggestions
General Layout Rules:
All Printed Circuit Boards must comply with UL94 V0 standard for flammability. Always use RoHS
compliant Parts and materials.
Suggestions for Layout:
Step 1.Do not place Power circuit, X’tal, Inductor, etc. near RF area.
Step 2.The bigger Antenna clearance area, the better. The Antenna itself needs to stay away from
any circuit or component at least 3mm. Antenna clearance area means Top and Bottom both
required to be cleared.
Step 3.Do not use metal materials on design where near Antenna area. For example, battery snaps,
USB connector, iron case, etc.
These guidelines are for design reference; real performance still depends on actual design.

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RB8762CMF EVK Development Board Figure and
Functions
The RB8762CMF-MB Development Board has white silkscreen legend located by the switches
and connectors described below.
1. USB connector
2. Active button
3. RESET button
4. Power switch
5. MESH LED
1
2
3
5
4

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Operating RB8762CMF-D
Introduction:
Radicom provides RTL8762CMF Development Kit as a quick platform for testing. Each
RTL8762CMF DONGLE has an USB connector interface.
If you use USB interface to transmit your data, please plug one USB cable to USB connector and
insert a 4piece jumper into J13 (as below). This USB connector can work as power supply and data
transmission at the same time. With USB interface, you may use AT-command (at-i) to check
information of RTL8762CMF dongle
After above connection, you can issue AT commands to instruct the modules to establish a Bluetooth
connection to transmit and receive data through this USB-UART interface.
※The actual data transportation is USB to UART Bridge Virtual COM Port for this usage.
Please download FT232 USB driver from below link:
http://www.silabs.com/products/mcu/pages/usbtouartbridgevcpdrivers.aspx

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Hardware Set-up - To provide power to the RB8762CMF-MB, plug one end of the USB cable into
USB connector on the RB8762CMF-MB. Plug the other end into the PC USB port.
Pending
PC Set-up - Turn on the PC. To send the AT commands and transmit & receive data with the
RB8762CMF-MB use a serial communication package such as Docklight. Set the appropriate COM
port for each side with the DTE speed set to 9600 and parity set to 8N1.
Docklight setting is as follows:
Step 1.Click upper-right corner of Docklight (as below) to enter “Project Settings”.
Step 2.Enter “Project Settings” and choose the appropriate COM port. Then set “COM Port
Settings” as: Baud rate: 9600, 8 data bits, None parity, 1 stop bits and None flow control.
Click “OK” to complete setting.

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Step 3.After these steps, power on the RB8762CMF-MB and you’ll see device information as
below.
※Actual version of RB8762CMF-MB and BT device address might be different as above.
If you want to know the latest FW version, please contact Radicom.
2
1
1
2

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Supported AT Command List
AT Commands
Slave Side
Master Side
Description
at
√
√
Test UART channel
at+laddr
√
√
Read BD address
at+name
√
√
Read device name
at+name<Parameter>
√
√
Set device name(Max. length=16 byte)
Default name is “Radicom”.
After changing name, you should use
“at+reset\r\n” command and the new name
will work.
at+baud
√
√
Check current Baud rate.
at+baud< Parameter>
√
√
Set Baud rate.
Parameter range(1, 2,…,9):
1: 1200bit/s
2: 2400bit/s
3: 4800bit/s
4: 9600bit/s
5: 19200bit/s
6: 38400bit/s
7: 57600bit/s
8: 115200bit/s
9: 230400bit/s(USB only)
at+role
√
√
Check the role of device.
at+role< Parameter>
√
√
Role setting.
Parameter range(0,1,2):
0: slave device
1: master device
2: OTA
at+inq
Invalid
√
Get slave device’s BD address (Max.=10
slave, sequence number 0-9)
at+sinq
Invalid
√
Stop searching for BT device. *Must-do
step, or master device will keep searching.
at+conn< Parameter>
Invalid
√
Connect a slave device.
*Input parameter from “AT+INQ”.

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AT Commands
Slave Side
Master Side
Description
at+i
√
√
Check role, FW version, device name and
BD address
at+adv
√
Invalid
Check the setting of advertising
at+adv< Parameter>
√
Invalid
Set advertising.
1:Enable
0:Disable
at+reset
√
√
Reboot the device

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AT-Command in Docklight
Master EVB
Slave EVB
Step 1.
Enter “at+role=1<CR><LF>” to set as master.
Step 5.
Enter “at+inq<CR><LF>”. Get slave’s BD
address.
OK. At+inq<CR><LF>
+INQ<CR><LF>
0:0X0012A1123456
Step 6.
Enter “at+sinq<CR><LF>”. Stop the master from
searching BT device.
+INQE<CR><LF>
Step 7.
Enter “at+conn0<CR><LF>”. Connect to slave
device.
OK<CR><LF>
+CONNS<CR><LF>
+CONNECTED>>0X12A1123456<CR><LF>
Step 2.
Enter “at+role=0<CR><LF>” to set as slave.
Step 3.
Enter “at+name<CR><LF>”to read device
name.
+Name=Radicom
Step 4.
Enter “at+laddr<CR><LF>” to read BD address.
+LADDR=0012A1123456
※Device will enter data mode as long as connect. If you want access command mode again,
please send “+++ath” to the connecting device. The device will leave data mode and enter
command mode.
※Once power on the device, please wait 8 seconds to enter advertising mode.

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OTA Upgrade Firmware
This chapter will show you how to use OTA to upgrade firmware.
Step 1.Plug in USB cable to power on RB8762CMF-MB.
Step 2.Follow page14 to setup RB8762CMF-MB with Docklight
Step 3.Issue “at+role2<CR><LF>”to enter OTA mode(as below)
Step 4.Install OTA APP (OTA.apk) in your Android smart phone.
Step 5.Upload the latest firmware file into your smart phone.
Step 6.Launch OTA APP and search for “Radicom_OTA” device. Then click the device to enter next
step.