USR-BLE100 User Manual
Jinan USR IOT Technology Limited
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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.
