Pico-BLE User manual
版本：
V1.0
，日期：
2021
年
12
月
16
日
7 / 10
Query the name and address of bluetooth
AT+TM\r\n
Return TM+BLE-Waveshare\r\n for Bluetooth
name BLE-Waveshare
AT+TN\r\n
Returns the Bluetooth address of TN+12345678AABB\r\n BLE: 0xBB, 0xAA, 0x78, 0x56, 0x34, 0x12
AT+TD\r\n
Return to TD+SPP-Waveshare\r\n for Bluetooth name SPP-Waveshare
There is no SPP address whether it is set or queried, because the SPP address is obtained by +1 on the
highest byte of the BLE MAC address, for example:
The address of BLE is returned as: TN+32F441F495F1,
This means the address of BLE is: 0xF1 , 0x95 , 0xF4 , 0x 41 , 0xF4 , 0x32
Then the address of SPP is: 0xF2 , 0x95 , 0xF4 , 0x 41 , 0xF4 , 0x32
Chip low power instruction description
AT+CL00\r\n
Do not enter low power mode. It will be valid at the next power-on. Be careful to restart
the power after setting
AT+CL01\r\n
Enter low power mode. It is valid at the next power-on. After setting, pay attention to power
on again --- the chip enters this state by default, no need to set
AT+QL\r\n
Low-power query command. The return value is QL+01\r\n, indicating that the current working
state is low power consumption mode
1. After setting, you need to power on again to update the configuration
2. This command is memorized. After the command is sent successfully, the chip will save it.
3. After starting the low-power mode, there are many restrictions, which are generally turned off by
default.
4. After the setting, the chip will return to the device information normally when it is powered on. AT
commands can be set within 5 seconds, and after 5 seconds, any AT commands will be ignored before
the Bluetooth connection.
5. The difference between low power consumption and normal operation is mainly due to the
difference in the way of Bluetooth broadcasting when Bluetooth is not connected. During normal
operation, Bluetooth is always in the broadcasting state. During low power consumption, it
broadcasts every 0.5 seconds, once every 0.1 seconds, and the rest of the time is in a sleep state. .
When connected to Bluetooth, the power consumption of the two working modes is similar (of course,
the low power consumption will be a little lower),
If it is not particularly sensitive to power
consumption or it will be in a disconnected state for a long time after power-on, it is better to keep
the module in normal working state.
6. The following table is the current under each working state, which is measured in the experimental
environment, and the results are for reference only.
