Firmtech FBL770BC User manual

FBL770BC Quick Guide
BLE ( Bluetooth Low Energy ) Module
Low ENERGY(4.0)/SMART
FBL770BC
BLE module

8.0 mm
14.5 mm
24 mm
24 mm
8.0 mm
14.5 mm
A picture of FBL770BC on a coin
FBL770BC
BLE module
Top Bottom
FBL770BC
BLE module

What are the roles of BLE operation?
A BLE plays a total of four roles: Central and Observer as the Master; Peripheral and Broadcaster as the Slave. (Standard codes)
◆The FBL770BC BLE Module supports the Peripheral role and the Broadcaster role.
Central Role
①
(ex) Smartphone
Observer Role
②Broadcaster Role
Can be used only for the Bluetooth transmission
function.
Peripheral Role
③
Can be used for both Bluetooth transmission and
receiving functions.
Can be used only for the Bluetooth receiving function.
Can be used for both Bluetooth transmission and
receiving functions.
④
(ex) Smart Watch
(ex) Smart thermo-hygrometer
Master Slave
(ex) Beacon

Understanding the BLE communication method –Difference between
Connection and Advertising communication methods
Connection is a bilateral Bluetooth communication that can be applied to the case 1 configuration in the picture shown below.
◆Advertising is a unilateral Bluetooth communication that can be applied to all of case 1, case 2, case 3 and case 4 configurations
in the picture shown below.
Advertising is a method by which own basic data can be transmitted at a certain interval regardless of the reception of the counterpart.
This method can be used only when the counterpart is within the communication radius.
Basic data includes the device name, Mac address, provided services, wireless output power level, etc. of the Peripheral or Broadcaster device that is currently
advertising. If necessary, analog value (sensor), digital input value (status), etc. that are collected via the external input/output port interfaced with the Peripheral or
Broadcaster device can also be transmitted.
Central Role Peripheral Role
Connection
Advertising
Central Role Broadcaster Role
Observer Role Peripheral Role Observer Role Broadcaster Role
Master Slave Master Slave
Master Slave Master Slave
Case 1 Case 2
Advertising Advertising
Advertising
Case 3 Case 4

1. What is FBL770BC ?
FBL770BC is a Bluetooth embedded module based on Bluetooth 4.0 that supports Bluetooth Low Energy which is a low power
function. FBL770BC is a product with an all-in-one type built-in package that incorporates all functions, including hardware,
firmware, application software, and a chip antenna for user convenience; FBL770BC operates by itself when power is supplied
from an external source. This product is configured to be easily controlled by a smartphone.
Low ENERGY(4.0)/SMART
FBL770BC
BLE module
Low ENERGY(4.0)/SMART

If the BLE plays a role of a Broadcaster, it can be used for the beacon function.
PIO (8bit) PWM (2Channel)
ADC (2Channel)
Supports the various GPIO
port functions
UART ( TX,RX,GND)
Supports the Low Energy function
①
②③
2. Summary of core functions of FBL770BC
Examples of application –Issuing coupons, location search, inventory management,
distribution, healthcare, tourism, ticketing, etc.
Supports the Beacon function
FBL770BC
BLE module

FBL770BC
BLE module
Beacon
Smart home
Life style
Boiler control
Security system
Lighting control
Home appliance
Pulse meter
Fat analyzer
Blood glucose monitor
Blood pressure monitor
Cardiac defibrillator
Activity tracker
Thermo-hygrometer
Weight scale
Passometer
Robot cleaner
Gaming pad
Toy
Smartband
Smartwatch
Prosimity tag
Location search
Issuing coupons
Inventory management
Healthcare
Distribution/tourism
Ticketing
Crop management
Blood glucose meter
Industrial sensor
Robot control
Electronic scale
Health & fitness
Mobile accessories
Industrial
Low ENERGY(4.0)/SMART
3. Application of FBL770BC (examples)

4. Major functions of FBL770BC –Supports the Low Power Mode
It can operate even with
a mercury cell for a long
time.
3 V
GND
Low ENERGY(4.0)/SMART
FBL770BC
BLE module
The summary of current consumption per each operating mode of FBL770BC
Status
Current Consumption (uA)
Min
Max
Average
Advertising (Advertising Interval: 1s)
2
526
67
Advertising (Advertising Interval: 10s)
2
520
16
Connection (Connection Interval: 100ms)
157
339
268
Connection (Connection Interval:4000ms )
2
260
14
Using a CR2032 225 mAh battery
Users can operate FBL770BC for 580 days when the Advertising interval is set to 10 seconds.
Users can operate FBL770BC for 130 days when the Advertising interval is set to 1 seconds.
Remark

5. Major functions of FBL770BC –Supports the Beacon function
The broadcaster unilaterally transmits its basic data to the Central device as a certain interval, which is called Advertising.
The basic data provided by the Broadcaster to the Central device by Advertising is as follows:
- Basic data includes the device name, Mac address, provided services, wireless output power level, etc. of the Broadcaster device. If
necessary, analog value (sensor), digital input value (status), etc. that are collected via the external input/output port interfaced with the
Peripheral or Broadcaster device can also be transmitted.
◆The Central device can be used to issue tickets (an example of application) using the unique data delivered from the Broadcaster while
interlocking with the beacon service server.
◆This series of service is called the beacon service, which can be used in various ways on industrial sites.
FBL770BC
Master
Central Role
Slave
Broadcaster Role
Slave
Broadcaster Role
3 V
GND
Advertising
Advertising
①
②
ID
③
ID
Service
3 V
GND
Becon 서비스 서버
FBL770BC
mainly used for the beacon service
When using it as a beacon system, it is mostly configured such that the Master plays the Central role and the Slave plays the
Broadcaster role.
The BLE network
configuration method

Offers various Android-
based apps for the
purpose of testing
FBL770BC’s functions
FBL770BC
8 Bit PIO
2 Channel ADC
2 Channel PWM
UART (TX,RX,GND)
One of the features of FBL770BC is that it can be configured so that to be used after freely setting its own PIO 8 bit, 2 ADC channels,
2 PWM channels, and UART communication (TX, RX, GND) to input or output as desired without using a MICOM.
No MICOM is required.
6. Major functions of FBL770BC –Supports the various GPIO port functions
Expected effect: As it allows users to develop a target device without using a MICOM, its effect is the reduction of product size
and manufacturing cost as a result.
MICOM
Low ENERGY(4.0)/SMART
Slave
Peripheral Role
Master
Central Role
FBL770BC
BLE module
[ BLE module ]

FBL770BC
8 Bit PIO
2 Channel ADC
2 Channel PWM
UART
* Offers various Android-based apps for the purpose of testing FBL770BC’s functions ((Available on our webpage’s resources section)
Example
FBL770BC 외부장치
Master
Central Role
Low ENERGY(4.0)/SMART
Slave
Peripheral Role
LED
Switch
Sensor
Motor
7. Major functions of FBL770BC –Supports the various GPIO port functions

Each of PIO 8bits can be set to input or output as desired.
◆Any bit of PIO 8 bits set to input delivers the current input status to a wirelessly connected smartphone when an Event occurs.
An Event refers to a change of input (Falling edge or Rising edge) supplied to the PIO port.
Falling edge
Supports the 8 Bit PIO (Port Input Output) functions
FBL770BC
①
③
①
Rising edge
④
2 Channel ADC
2 Channel PWM
UART (TX,RX,GND)
Master
Central Role
Low ENERGY(4.0)/SMART
Slave
Peripheral Role
①
8 Bit PIO
②
3.3V
0 V
⑴⑵
⑴
⑵
8. Major functions of FBL770BC –Supports the 8 bit I/O ports.

②
ADC1, ADC0 On/Off function
It reads current analog values of FBL770BC’s ADC1 and ADC0 ports, converts them to digital values, and transmits the
values to a smartphone.
The transmission interval of ADC1 and ADC0 ports can be freely set in seconds from 1 second to 18 hours.
Make sure that the maximum input voltage does not exceed 3.3V since the range of ADC’s input voltage is from 0 to 3.3V.
Supports the 2 Channel ADC (Analog to Digital Convertor) funtions
FBL770BC
①
④
UART (TX,RX,GND)
Master
Central Role
Low ENERGY(4.0)/SMART
Slave
Peripheral Role
8 Bit PIO
2 Channel ADC
②
③
2 Channel PWM
9. Major functions of FBL770BC –Supports the 2 channel ADC ports.

③
PWM1, PWM0 On/Off function
Each duty rate of PWM1 and PWM0 can be freely set from 0 to 255.
Supports the 2 Channel PWM (Pulse Wide Modulation) functions
FBL770BC
①
Master
Central Role
Low ENERGY(4.0)/SMART
Slave
Peripheral Role
8 Bit PIO
②
③
2 Channel PWM
④
UART (TX,RX,GND)
( Example ) ( Example )
2 Channel ADC
10. Major functions of FBL770BC –Supports the 2 channel PWM ports.
Output waveform when the duty ratio is 50%
Diagram of the output waveform of
PWM1 or PWM0 when PWM duty cycle
value is set to 128
Output waveform when the duty ratio is 25%
Diagram of the output waveform of
PWM1 or PWM0 when PWM duty cycle
value is set to 64

Supports the UART ( Universal Asynchronous Receiver Transmitter ) function
④
Data can be sent or received in maximum 20 bytes for the UART communication.
FBL770BC
①
Master
Central Role
Low ENERGY(4.0)/SMART
Slave
Peripheral Role
8 Bit PIO
②
④
UART (TX,RX,GND)
③
2 Channel PWM
2 Channel ADC
10. Major functions of FBL770BC –Supports the UART port.

No.
Name of Signal
Feature
I/O Direction
Signal Level
1
NC
-
-
-
2
NC
-
-
-
3
DC
-
-
-
4
DD
-
-
-
5
NC
-
-
-
6
PIO7
Digital Input or Output Port
-
-
7
PIO6
Digital Input or Output Port
-
-
8
NC
-
-
-
9
NC
-
-
-
10
VCC
3.3V DC
11
PIO5
Digital Input or Output Port
Input/output
TTL
12
PIO4
Digital Input or Output Port
Input/output
TTL
13
PIO3
Digital Input or Output Port
Input/output
TTL
14
PIO2
Digital Input or Output Port
Input/output
TTL
15
PIO1 / PWM 1
Digital Input or Output Port / PWM
Input/output
TTL
16
PIO0 / PWM 0
Digital Input or Output Port / PWM
Input/output
TTL
17
Advertising Control
Advertising on/off Control
Input
TTL
18
Power Save Control
Power Save on/off Control
Input
TTL
19
Power Save Status
Power Save Operation Status
Output
TTL
20
Advertising Status
Advertising Operation Status
Output
TTL
21
TX
Transfer Data ( Data out )
Output
TTL
22
RX
Received Data ( Data In )
Input
TTL
23
ADC1
Analog to Digital Convertor
Input
0~3.3V
24
ADC0
Analog to Digital Convertor
Input
0~3.3V
25
Reset
Reset
Input
-
26
GND
Ground
27
Ant
Chip Antenna
12. FBL770BC PIN Description –Detail
1
9
1
9
10
16
10
Top
Bottom
16
25
17
25
17
27
26

13. FBL770BC PIN Description –Major input / output Port
PIO 7
PIO 6
Reset
TX
ADC0
ADC1
Advertising status
Advertising control
Ant
NC
NC
DC
DD
NC
NC
NC
PIO 5 PIO 4 PIO 3 PIO 2
PIO 0 / PWM 0
VCC
Power Save control
PIO 1 / PWM 1
Power Save status
RX
GND
Top Bottom
No
Port
Feature
Major
input/output
port
PIO7 ~ PIO0
It’s an 8-bit port used for digital input or digital output. Users can select the function for each
bit as input or output. Users can freely and selectively set each bit as input or output.
ADC1 , ADC0
As an analog input port, its applicable input voltage range is 0~3.3V.
PWM1 , PWM0
It is a PWM output port. Its duty rate setting range is from 0 to 255.
TXD, RXD
It is used for serial (RS232) communication between a PC and FBL770BC.
(Used for initial settings of FBL770BC)

14. FBL770BC PIN Description –Major control port
PIO 7
PIO 6
Reset
TX
ADC0
ADC1
Advertising status
Advertising control
Ant
NC
NC
DC
DD
NC
NC
NC
PIO 5 PIO 4 PIO 3 PIO 2
PIO 0 / PWM 0
VCC
Power Save control
PIO 1 / PWM 1
Power Save status
RX
GND
Top Bottom
Item
Port
Details of operation
(For further detail on the method of use, please refer to the FBL770BC user manual.)
Major
Control port
Advertising control
It is used to select On/Off of FBL770’s Advertising function.
Remarks: Initial Advertising function status after powering on FBL770 is On.
Advertising status
It is used to monitor the status of Advertising operation of FBL770.
Power Save control
Select On/Off of FBL770’s Power Save function.
Power Save status
It is used to monitor the status of power save operation of FBL770.
Remarks: After powering FBL770 on, the initial Power Save function status is On. (For further details on the
method of use, please refer to the FBL770BC user manual.)
Reset
When Reset (Active low) signal is supplied, hardware reset of FB770BC occurs.

15. Introduction of dedicated test kit for FBL770BC
FBL770BC Basic Kit is a kit made for all input/output (PIO, ADC, PWM) function testing.
FBL770BC
FBL770BC Interface board USB Cable
FBL770BC_H : 1 EA
FBL770BC Interface Board : 1 EA
USB Cable : 1 EA
Android-based apps for the purpose of testing FBL770BC functions
FBL770BC
+
Product Components
FBL770BC_H
FBL770BC
Expansion Board