Radicom Research RB8762C Series User manual

Radicom Research, Inc.
Designer’s Guide for
RB8762C Series
(RoHS BLE 5.1 Serial Bluetooth Modules)
Compliant
SIG DID: D057234
Date: 03/14/2019
Doc#RRD2Z50-20190314001-A09-C2

RB8762CJFDesigner’sGuide(RRD2Z50‐20190314001‐A09‐C2) 2
Table of Contents
Radicom Research, Inc. ............................................................................................... 1
Table of Contents ..................................................................................................... 2
RB8762C EVK and BLE Functionality .................................................................... 4
Features .................................................................................................................... 5
Approvals ................................................................................................................. 6
Electronic Characteristics ....................................................................................... 6
Model Naming System ............................................................................................. 7
RB8762C Module Mechanical Dimensions & Pin Definitions ............................... 8
RB8762CHM Mechanical Dimensions & Pin Definitions ...................................... 9
RB8762CMB Mechanical Dimensions .................................................................. 10
RB8762CMB RS232 DB9 Pin Definitions ............................................................. 11
Layout Design Suggestions .................................................................................. 12
RB8762C EVK Development Board Figure and Functions ................................. 13
Operating RB8762C MB ......................................................................................... 15
Supported AT Command List ................................................................................ 18
AT-Command in Docklight .................................................................................... 20
OTA Upgrade Firmware ......................................................................................... 22
How to access RB8762C from smartphone ......................................................... 26
The wired method upgrades RB8762C firmware code ....................................... 28
FCC , IC, NCC Label and Model Identification ..................................................... 34
Important Regulatory Compliance and User Information .................................. 34
CE Declaration of Conformity ............................................................................... 40
Limited Warranty .................................................................................................... 41
Contacting Radicom Research ............................................................................. 43
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.

RB8762CJFDesigner’sGuide(RRD2Z50‐20190314001‐A09‐C2) 3
Introduction
Thank you for choosing Radicom RB8762C Module. We are committed to providing you quality
service and technical support. The RB8762C modules are designed to meet OEM’s needs of
embedding low power, wireless data connectivity to their products. The RB8762C family offers a quick
and simple solution for wireless Bluetooth communications.
Radicom RB8762C module is designed to meet the emerging market for Bluetooth 5.1 applications.
These embedded Bluetooth 5.1 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 RB8762C 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 5.1 Bluetooth
device or for help in determining which Bluetooth Module is the best fit for your particular Bluetooth
application.
The RB8762C 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 RB8762C
family provides superior performance in the presence of interference from 802.11 (WiFi) wireless
devices and other 2.4GHz radios.
The RB8762C 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 RB8762C is available in surface mount (SMD) or through-hole (DIP) hardware designs. The
RB8762C module is the surface mount model. The RB8762C can also mounted on a conversion
board to create the RB8762CHM model for serial through-hole designs.

RB8762CJFDesigner’sGuide(RRD2Z50‐20190314001‐A09‐C2) 4
RB8762C EVK and BLE Functionality
Radicom provides RB8762C-EVK (development kits) as a quick platform for testing and evaluating
the RB8762C and RB8762CHM Bluetooth modules. The kit includes two RB8762C modules
mounted on the RB8762CHM DIP Module. Each RB8762CHM is installed into a RB8762CMB
evaluation board. One of the RB8762CHM is configured to operate in BLE Data Protocol Master
Mode. The other RB8762C-HM is configured to operate in BLE Data Protocol Slave mode. The
RB8762CMB 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 RB8762C 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 RB8762C-S
advertises or broadcasts the Bluetooth signal. The Master Model RB8762C-M will scan for Bluetooth
signals and then request a Bluetooth connection. The RB8762C-S Slave can then accept the
connection for BLE Data transfers. The RB8762C-S Slave can also operate with remote devices that
also support the BLE Data Protocol.

RB8762CJFDesigner’sGuide(RRD2Z50‐20190314001‐A09‐C2) 5
Features
 Support the Bluetooth 5.1 core specification
 Frequency Range 2.402 – 2.480 GHz
 Integrate MCU to execute Bluetooth protocol stack
 Ultra low power consumption with intelligent PMU
 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: -92.5dBm Min
 Range: Up to 20 meters (line of sight)
 15 GPIOs, 3 configurable LED pins
 Hardware Keyscan and Quad-decoder
 Embedded 256KB 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:RB8762C ~ 0.67” x 0.59”
RB8762CHM ~ 0.67” x 1.09”
 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

RB8762CJFDesigner’sGuide(RRD2Z50‐20190314001‐A09‐C2) 6
Approvals
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
※The Current Consumption is code dependent. Bluetooth functions and characteristics will
vary depending on the application firmware that is loaded into the RB8762C module. The
standard code is for BLE Slave. Using any RB8762C I/O (output) will draw more current
and change the overall current consumption.

RB8762CJFDesigner’sGuide(RRD2Z50‐20190314001‐A09‐C2) 7
Model Naming System
Product Series: RB8762C- (x) - (x)
Optional
a: on-board antenna
c: IPEX connector
Optional
G: with G sensor
Blank: without G sensor
FCC/CE certified:
RB8762C-(a/c)-G
RB8762C-(a/c)
IC certified:
RB8762C

RB8762CJFDesigner’sGuide(RRD2Z50‐20190314001‐A09‐C2) 8
Size:
Module=17.5x15.0x2.75mm[0.69”x0.59”x0.11”]
RB8762C Module Mechanical Dimensions & Pin
Definitions
Pin Definitions
Unit:mm[inch]
FrontView
Top View
SideView

RB8762CJFDesigner’sGuide(RRD2Z50‐20190314001‐A09‐C2) 9
RB8762CHM Mechanical Dimensions & Pin Definitions
Size:
RB8762CHM(w/o pin header)= 30.6 x 28 x 5.6 mm [1.2” x 1.1” x 0.24”]
Pin header pitch = 6mm [0.2”]
Unit:mm[inch]
SideView
FrontView
Top View
Pin Definition

RB8762CJFDesigner’sGuide(RRD2Z50‐20190314001‐A09‐C2) 10
RB8762CMB Mechanical Dimensions
Size:
Evaluation Board= 62.6 x 55.1 x 15.0 mm [2.5” x 2.2” x 0.6”]
Unit:mm[inch]
FrontView
TopView 
2-PH 2.54_2X11P;H=8.4
2-PH 0.10_2X11P;H=0.33”
SideView

RB8762CJFDesigner’sGuide(RRD2Z50‐20190314001‐A09‐C2) 11
RB8762CMB RS232 DB9 Pin Definitions
The pin definitions of DB9 used on the RB8762CMB RS232 Serial Connector are as follows:
Pin Signal name
1 DCD (Input, Carrier Detect)
2 RXD (Input, Received Data)
3 TXD (Output, Transmit Data)
4 DTR (Output, Data Terminal Ready)
5 GND (Ground)
6 DSR (Input, Data Set Ready)
7 RTS (Output, Request to Send)
8 CTS (Input, Clear to Send)
9 RI (Input, Ring Indicator)

RB8762CJFDesigner’sGuide(RRD2Z50‐20190314001‐A09‐C2) 12
Layout Design Suggestions
General Layout Rules:
All Printed Circuit Boards must comply with UL94V0 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.

RB8762CJFDesigner’sGuide(RRD2Z50‐20190314001‐A09‐C2) 13
RB8762C EVK Development Board Figure and Functions
The RB8762CMB Development Board has white silkscreen legend located by the switches and
connectors described below.
1. RS232 male DB-9 connector (J32)
2. Rows keys (J14)
Row 0 > P1_2 , Row 1 > P1_3 , Row 2 > P1_4 , Row 3 > P1_5
Row 4 > P1_6 , Row 5 > P1_7
3. Columns Keys(J15)
Column 0 > P0_7 , Column 1 > P0_6 , Column 2 > P0_5 , Column 3 > P0_4 ,
Column 4 > P0_1 , Column 5 > P0_0 , Column 6 > P3_6 , Column 7 > P3_5 ,
Column 8 > P3_4 , Column 9 > P3_3 , Column 10 > P3_2
4. Erase flash memory (J1)
4
1
2
3
5
6
7
8
9
10
11
12

RB8762CJFDesigner’sGuide(RRD2Z50‐20190314001‐A09‐C2) 14
5. UART interface header (J3)
6. GPIO interface header (J2)
7. RS232 _ UART header (J17)
8. I2C interface header (J8)
9. USB_UART header (J13)
10. SPI interface header (J4)
11. Power LED indicator
12. USB 5V slot (U3)

RB8762CJFDesigner’sGuide(RRD2Z50‐20190314001‐A09‐C2) 15
Operating RB8762C MB
Introduction:
Radicom provides RB8762CMB Development Kit as a quick platform for testing and evaluating the
RB8762CHM Bluetooth module. Each RB8762CMB has an UART and USB connector interface.
You may choose either UART or USB interface for data transmission.
If you use UART interface to transmit your data, please plug one null cable to COM port and insert a
4 pieces jumper into J17 (as below). Also remember to connect USB connector for power supply. As
long as connecting RB8762CMB with UART interface, you’re able to check information of
RB8762CMB, including role (master/slave), FW version, device name and BD address.
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 RM8762MB.
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 CP2102 USB driver from below link:
http://www.silabs.com/products/mcu/pages/usbtouartbridgevcpdrivers.aspx

RB8762CJFDesigner’sGuide(RRD2Z50‐20190314001‐A09‐C2) 16
Hardware Set-up - To provide power to the RB8762CMB, plug one end of the USB cable into USB
connector on the RB8762CMB. Plug the other end into the PC USB port.
PC Set-up - Turn on the PC. To send the AT commands and transmit & receive data with the
RB8762CMB 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.
1
2

RB8762CJFDesigner’sGuide(RRD2Z50‐20190314001‐A09‐C2) 17
Step 3. After these steps, power on the RB8762CMB and you’ll see device information as below.
※Actual version of RB8762CMB and BT device address might be different as above.
If you want to know the latest FW version, please contact Radicom.
2
1

RB8762CJFDesigner’sGuide(RRD2Z50‐20190314001‐A09‐C2) 18
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: The device will detect GPIO P1_0 state
to decide to be a master or slave device.
P1_0 is high, devcie will be master.
P1_0 is low, device will be salve.
at+inq Invalid √
Get slave device’s BD address (Max.=10
slave, sequence number 0-9)
After this command “at+sign” must be the
next command

RB8762CJFDesigner’sGuide(RRD2Z50‐20190314001‐A09‐C2) 19
AT Commands Slave Side Master Side Description
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”.
at+i √ √ Check role, FW version, device name and
BD address
at+reset √ √ Reboot the device

RB8762CJFDesigner’sGuide(RRD2Z50‐20190314001‐A09‐C2) 20
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.