Shandong USR IOT Technology Limited USRBLE100 用户手册
USR-BLE100 User Manual
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Jinan USR IOT Technology Limited
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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.
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,
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.
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.
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.
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.
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
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.
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.
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
Apple company came out this protocol in 2013,now, Android also compatible with it, make the application
range of iBeach father.