USR IOT USR-BLE100 User manual

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USR-BLE100 User Manual
File version: V1.1

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Contents
1. Quick Start......................................................................................................................................................................... 3
1.1. Hardware Testing Environment.......................................................................................................................... 3
1.2. Data Transmission Testing.................................................................................................................................. 3
2. Overview............................................................................................................................................................................ 4
2.1. Brief Introduction................................................................................................................................................... 4
2.2. Features..................................................................................................................................................................5
2.3. Parameters.............................................................................................................................................................5
2.4. Hardware Introduction.......................................................................................................................................... 6
2.5. Applications............................................................................................................................................................ 7
2.6. Dimensions.............................................................................................................................................................8
3. Functions............................................................................................................................................................................8
3.1. Working Mode........................................................................................................................................................9
3.1.1. Master Mode...............................................................................................................................................9
3.1.2. Slave Mode.................................................................................................................................................9
3.1.3. Broadcast Mode.........................................................................................................................................9
3.1.4. Mesh Networking Mode............................................................................................................................9
3.2. Packet Mechanism............................................................................................................................................. 10
3.3. iBeacon Protocol.................................................................................................................................................10
3.4. SOC Detection.....................................................................................................................................................11
3.5. Low Power Mode................................................................................................................................................ 11
3.6. Encrypted Transmission.....................................................................................................................................11
3.7. Indicator Status....................................................................................................................................................11
4. Setup Method..................................................................................................................................................................12
4.1. AT Instruction....................................................................................................................................................... 12
4.1.1. Serial AT Instruction................................................................................................................................ 12
4.1.2. Transparent Transmission Instruction..................................................................................................12
4.2. AT Instructions..................................................................................................................................................... 12
5. Contact us........................................................................................................................................................................14
6. Disclaimer........................................................................................................................................................................ 14
7. Update History................................................................................................................................................................ 14

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1. Quick Start
This chapter aimes at getting start USR-BLE100 quickly. It’s recommended that user read this chapter
systemically and operate it according to instruction to make a scientific knowledge. Following chapter will
introduce specific details and instruction, user can read interested chapter directly.
If you have any question, feed it back to customer center please:
http://h.usriot.com
1.1. Hardware Testing Environment
Module slave mode is similar to smart devices on the market like Smart Band. This module support
standard BLE communication protocol, user can independent develop software and communicate by connect
module with master device like mobile phone. This test need the device which support ultra-low power
Bluetooth:
The device with BLE function and Android system V4.3 or above.
Iphone 4s version or above device with IOS7.0 or above operating system.
1.2. Data Transmission Testing
Take Android mobile phone as example:
Testing environment: Android 5.0
Testing software : Android Bluetooth Module Debugger and USR-TCP-Test
Use the USR-TCP-Test to open the serial number of the connected module, set the baud rate as 57600.
(User can use AT instruction to change parameter, following chapter will introduce it.)
Link light will flash once per second when module power-on. Using the Module Debugger software to
search (click magnifying glass button) , you can find the device named USR-BLE100, as shown in figure 1.
Figure 1 Module Debugger software
Click on the device to connect with it, as shown in figure 2, the LINK light will keep on.

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Figure 2 Module Debugger software
Firstly, click on the “USR Service”. Then click the “DEBUG” option at the bottom. After it, click on “NOTIFY”.
When it turn to “STOP NOTIFY”, listening state begins. Now we can receive data through serial port. If user
want to send data, click on the upward symbol on the left, find out the “WRITE”, click it and user can type data.
After click “SEND”, serial will receive the data you sent.
Figure 3 Module Debugger software
Note: According to test, we found that for BLE, the IOS support better than the Android, both at searching
speed or connecting speed. This is caused by the different of operating and hardware.
2. Overview
2.1. Brief Introduction
USR-BLE100 is a module which support ultra-low power Bluetooth4.1, and this module support master
and slave, user not only can use both master and salve for transparent transmission, also can make wireless
data transmission to the traditional low-end serial device and the device controlled by MCU. User can develop
APP on the basis of standardized BLE protocol, make it a easy way to communicate with module. This module
support MESH network pattern and one-to-many broadcasting, also has built-in iBeacon protocol, user can

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make it a iBeacon equipment after make simple setup. USR-BLE100 is a versatile, simple, and low-power IOT
transmission module.
2.2. Features
Support standard BLE protocol
1.3uA low-power broadcast mode, 150nA sleep mode, and varied wake-up mode
Support master and slave, switch fast
configuration mode: serial AT command, transparent transmission AT command
Support one-to-many broadcast mode, with built-in iBeacon protocol
Support Mesh network mode, can realize Bluetooth network
Support UART interface
1.9~5.5V single supply
Support state of charge(SOC) detection
Ultra-long transmission distance, up to 120m for a pair of modules
2.3. Parameters
Table 1. USR-BLE100 parameter
Item
Index
Wireless
parameter
Wireless Standard
802.15.1
Frequency Range
2.402Ghz-2.480GHz
Transmit Power
-18dBm~+3dBm
User can configure power
Receiving Sensitivity
-89dBm
Antenna Options
External: I-PEX connector
Built-in: PCB antenna
Hardware
Parameter
Data Interface
UART: 2400bps~115200bps
Working Voltage
1.9V~5.5V
Working Current
60nA~12mA
Working Temperature
-40°C~85°C
Storage Temperature
-40°C~125°C
Dimensions
18.2*26.7*3mm
Software
Parameter
Device type
Master/Slave
Security Mechanism
128 bit AES engine
Data Encryption
PC1 encryption
Work Mode
Master, Slave, Broadcast
Set Command
AT+ command structure
User Configuration
Serial AT Command
Transparent Transmission AT command
User Application
Software
Support customized software for VIP
users

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2.4. Hardware Introduction
Figure 4 USR-BLE100 PIN
Table 2. USR-BLE100 Pin Definitions
Pin
Name
Defination
1
GND
Power Ground
2
RF
RF signal output
3
NC
Not connect
4
Reset
Reset, take affect in “0”
5
GPIO1
GPIO1
6
GPIO2
GPIO2
7
GPIO3
GPIO3
8
NC
Not connect
9
12C_SDA
I2C Data Pin
10
12C_SCL
I2C Clock Pin
11
GND
Power Ground
12
GND
Power Ground
13
VCC
Power VCC, positive, range from 1.9v~5.5v
14
VCC
Power VCC, positive, range from 1.9v~5.5v
15
GPIO8
GPIO8
16
NC
Not connect
17
GND
Power Ground
18
PWM1
PWM Output Pin 1
19
UART0_TX
UART0 transmit
20
UART0_RX
UART0 receive
21
nReload
Reload to default settings for 1s
Reload to factory defaults for above 3s

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<Note>
The module minimum system recommend to use: PIN VCC, GND, UART0_TX, UART0_RX, LED, Reset,
Reload, Wake_Up. Please refer to the hardware design manual.
2.5. Applications
Wearable Smart Device
Industrial Data Collection
Smart Meter
Sport Smart Device
Medical Smart Device
Smart Mobile Terminal
Indoor location
Information Identification
iBeacon
Homekit
22
AD
AD collection
23
LED
Indicator light
24
UART0_CTS
UART0 CTS signal
25
UART0_RTS
UART0 RTS signal
26
SWDATA
Burn Data
27
SWCLK
Burn Clock
28
GND
Power Ground
29
GND
Power Ground
30
UART1_TX
UART1 transmit
31
UART1_RX
UART1 receive
32
PWM2
PWM output 2
33
SPI_SS1
SPI send request
34
SPI_SCLK
SPI clock
35
SPI_MISO
SPI MISO function
36
SPI_MOSI
SPI MOSI function
37
SPI_SS0
SPI chip selection
38
Wake_Up
Wake up
39
UART1_CTS
UART1 CTS signal
40
USRT1_RTS
UART1 RTS signal
41
NC
Not connect
42
NC
Not connect
43
NC
Not connect
44
GND
Power Ground

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2.6. Dimensions
unit: mm
Figure 5 USR-BLE100 Dimension
3. Functions
This chapter introduce the functions of product, as the following figure 6 shown, user can get a good
knowledge of product.
Figure 6 USR-BLE100 Function

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3.1. Working Mode
USR-BLE100 has 4 modes:
Master Mode
Slave Mode
Broadcast Mode
Mesh Networking Mode
<Note>
The module default factory mode is slave pattern, user can use master device to search.
3.1.1. Master Mode
USR-BLE100 support master mode that can connect with a slave device. In this pattern, user can search
devices around and choice the slave device need to connect. User also can set the MAC address of the slave
for default link, the device can find this pattern to connect when it power on.
<Note>
The USR-BLE100 module in Master mode, it need to connect another USR-BLE100 which is in Slave
mode to realize point to point transparent data transfer. It can’t connect other brands’ device to realize
transparent transmission because of the incompatible protocol.
3.1.2. Slave Mode
USR-BLE100 support slave mode, in this mode, device completely conform to BLE 4.1 protocol and
compatible with 4.0 protocol, user can develop APP according to protocol. This mode contain a serial
transceiver Service, user can find it by UUID. There are 2 channels, read and write, user can transfer data
through those channels.
There is no need for user to concern protocol if use the master of USR-BLE100 connect with slave, the
serial ports of two devices can transparent transfer data immediately. It develop a easy wireless transmission
channel for user.
<Note>
The question how to use BLE protocol to communicate is introduced in software design manual.
3.1.3. Broadcast Mode
USR-BLE100 support broadcasting mode, which support one-to-many broadcast. User can set module
broadcasting data through AT instructions. Module can consistent broadcast in low-power pattern, be used to
ultra-low power, small-data-sets, simplex transmission application occasions, like wireless measurement,
indoor location and so on.
<Note>
Module has built-in iBeacon protocol, user just need a button battery and set parameter through AT
instruction to make it a iBeacon device. Following chapter will detailed introduce it.
3.1.4. Mesh Networking Mode
USR-BLE100 support Mesh network mode, can connect many modules with net easily. By using star

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network and relay technology, each network can link 65000 or more nodes, networks can be interconnected,
and finally countless BLE modules can be interconnected or manipulate directly through mobile phone, pad or
PC. It doesn’t need gateway, even if one device is broken, other device will skip it and choose the nearest
device to transfer. The whole networking process just need a power-on device and communication password.
<Note>
This mode has some limits. Because in the transfer process, module need to constantly switching modes,
so the amount of transmitted data is limited to 20bytes per time, and transfer will delay a few seconds. This
mode is similar to UDP that can not ensure data would be sent to specified module. Please refer to the
software design manual for detailed instructions.
3.2. Packet Mechanism
Low-power Bluetooth aimed at small-data-sets transmission. According to the different serial baud rate,
BLE connect intervals and different contracting intervals, module will has different capacity of data. But, in any
case it will not exceed the theory of 4K byte/s. Test shows that leakage probability is lower when forwarding
rate is below 2K byte/s. To be safe, whether high speed or low speed, it’s better to do check retransmission in
the upper.
The serial port of USR-BLE100 can receive up to 512-byte packets per time, module will send
automatically according to the size of the packet, the maximum load for each wireless packet is 20 bytes
according to the standard. The packets mobile device send to module must packet(1-20byte per package) by
self to transfer. Module will forwarding to module serial port in turn when receive.
Module has two contract award pattern, one is 20 byte per package, another one is100 byte per package.
The latter can only be applied to set USR-BLE100 modules separately as Master and Slave to communicate. If
user use APP communicate with salve should choice 20 byte per package, there is specialized AT instruction
to be set.
<Note>
When serial port use the big package that greater than 100 byte less than 512 byte, serial data can be
received at a time. But it need reserved time to let module transfer data through Bluetooth, or it will rear end.
Please refer to the software design manual for detailed instructions.
3.3. iBeacon Protocol
USR-BLE send specific ID to surrounding through BLE broadcasting technology, the software received
this ID will take action according this ID. For example, set iBeacon protocol in shop will make the information in
iPhone and iPad transfer to the server, or make server send coupon and points to customer. In addition, user
can use iBeacon to send information to software when home appliance broken or stop working. Now WeChat
also support iBeacon, when user use “shake”, the ID registered in the background will receive related
information. The Bluetooth pendant key in popular use APP and the gyroscope of mobile phone to locate
module, always be used to indoor location.
<Note>
Apple company came out this protocol in 2013,now, Android also compatible with it, make the application
range of iBeach father.

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3.4. SOC Detection
USR-BLE100 collecting voltage through built-in ADC, transfer through specific “Service ”. Considering
many customers use Bluetooth will use battery in most cases, we add a measure function to access battery
power in real time. User only need to part voltage on the battery, part 1.024V voltage to AD collection pin when
battery in maximum power. Module monitor the change of voltage in real time, and report through private
channel.
<Note>
Please refer to the software design manual for detailed instructions.
3.5. Low Power Mode
USR-BLE100 has many low-power patterns, can provide longer using time for the customer use battery.
The first pattern: Auto Sleep Pattern. User can set a time through AT instruction. When no
connection ,serial port has no data and standby time exceeds the set time, module will enter sleep mode
automatically. In this pattern module Bluetooth can broadcast and connect, serial data can awake the module
at anytime.
The second pattern: Deep Sleep Pattern. Enter this pattern need AT instruction. Then, Bluetooth still can
broadcast and connect. There are two awake methods: make connection and use awake pin. In this pattern,
power consumption can reach about 1.5uA , many slave work in this pattern.
The third pattern: Sleep Pattern. This pattern still need AT instruction to enter, any peripheral will not work
in this pattern, power consumption can reach about 150nA, user can use awake pin to awake it.
<Note>
The low-power patterns here are only relative to salve, master does not have low-power mode. User can
make it stop working when master does not work, awake it and search to make connection when user need.
3.6. Encrypted Transmission
In order to ensure the security of data transmission, user can choose plaintext transmission or encrypted
transmission. User can use AT instruction to encrypted transfer, then serial data will be PC1 encrypted by
password, the module received data can decrypt only when it has the same password. It ensure the safety of
data transmission.
<Note>
There are built-in decrypt function in USR modules. If user want to use this pattern to encrypted transfer
through master and salve, he just need a coincident password. Data will be encrypted in one port, decrypted in
another port. If user develop APP to encrypted transfer, it need the decrypted function of APP to make sure that
data can be transferred. Please refer to the software design manual for detailed instructions.
3.7. Indicator Status
There is a indicator light(pin) in USR-BLE100 module, it display differently in different modular status. The
specific situation as shown below.

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Table 3. USR-BLE100 Light Definition
Module Status
Indicator Status
Master Searching
Flash 3 times per second
Slave Broadcasting
Flash 1 time per second
Connection Establishment
ON
Low Power Mode
OFF
Data Transmission
Flash
4. Setup Method
4.1. AT Instruction
4.1.1. Serial AT Instruction
USR-BLE100 has varied work modes, it will enter the mode you set last time when start-up, user can
switch into AT Instruction mode through serial instruction.
There are two steps to switch other modes into AT Instruction mode:
1. Input “+++” in serial port, then module will reply a confirmation code “a” when received “+++”;
2. Input “a” in serial port after received “a”, module will reply “+OK” to confirm, then module will enter
instruction mode;
User also can directly input “+++a” and wait module reply “+OK” to enter AT command mode. User can
send specific instruction in AT format after enter this mode.
4.1.2. Transparent Transmission Instruction
USR-BLE100 also support transparent transmission AT Instruction, user can use APP or the module
connected with it to set parameters in this pattern. User just need to input the 6 digits password of the module
and AT instruction to query or set the module’s parameter. For example, if user want to query module’s version
number, he should input “000000, AT+CTVER enter”. Like this, user can set and query parameter without
entering AT instruction pattern in data transmission period.
4.2. AT Instructions
Table 4. USR-BLE100 AT Instructions
Instruction
Description
General Command
NAME
Query/Set Module Name
MODE
Query/Set Pattern Mode
MAC
Query Module’s MAC Address
CIVER
Query Software Version Number

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TPL
Query/Set Module Transmission Power
SHOW
Show NAME, Pattern, MAC, Connection, Power
and so on.
PASS
Query/Set Mode Password
PASSEN
Query/Set Paired Validation
UART
Query/Set Mode Serial Parameter
UARTTM
Query/Set Serial Packet time
AUTOSLEEP
Query/Set Sleep Automatically
DEEPSLEEP
Enter Ultra-low Pattern
HIBERNATE
Enter Sleep Pattern
HELLO
Query/Set Welcome Words
ENTM
Pull Out Instruction Pattern
RELOAD
Resume To Default Setting
Z
Restart Module
Link Command
LINK
Query Mode Connection status
SCAN
Query Slaves Surrounded
CONN
Quick Connect By Query Reference Number
CONNADD
Query/Set MAC Address Default Connected
DISCONN
Disconnect Current Connection
ADP
Query/Set If Broadcast In This Pattern
ADPTM
Query/Set Broadcasting Speed
Characteristic Function
BATEN
Use/Forbidden Power testing
MAXPUT
Use/Forbidden maximum output
TRENC
Use/Forbidden PCI Encrypted Transmission
IBEACON
Query/Set iBeacon Function
How to use AT instruction can refer to the Software design manual.

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5. Contact us
Company: Jinan USR IOT Technology Limited
Address: Floor 11,Building1,No.1166 Xinluo Street, Gaoxin Distric, Jinan,
Shandong,250101 China
Tel: [phone]
Web: http://www.usriot.com
Support : http://h.usriot.com
Email: [e-mail]
6. Disclaimer
This document provides information about USR-BLE100 modules, this document does not grant any
license to intellectual property rights. Except the responsibilities. In addition, USR does not make any
warranties for the sale and use of this product, including the suitability of the product for a particular purpose,
merchantability of fitness for any patent, copyright or other intellectual property infringement, etc. USR may
make changes to specifications and product descriptions without notice.
7. Update History
2015-11-27 V1.0 first version
2016-01-04 V1.1 modify MAC instruction and white list instruction