Chengdu Ebyte Electronic Technology Co.,Ltd
E104-BT53C3 Manual User
Copyright ©2012–2020
，Chengdu Ebyte Electronic Technology Co.,Ltd
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5.7 Configuration Mode
The module supports two configuration modes: serial port configuration and APP configuration. APP
configuration, that is, to use the BLE APP configuration module on the phone, you must first verify the password
through AT+AUTH, some instructions do not support APP configuration, see 5.3 instruction table for details, and
other AT instructions are allowed to use after verification. The authentication period of the APP is set to this
connection. If the device is disconnected and reconnected, it needs to be re-authenticated.
1.
Which configuration mode the module is in depends on the PA00(MOD) pin level.
2.
APP configuration can be configured at any time, regardless of PA00(MOD) pin status.
3.
PA00(MOD) pin latches the current state when a valid change is detected. The holding time of each status
change is more than 200ms.
4.
In configuration mode, the serial port sends the AT command, wait for the serial port to return, and
then send the next AT command.
5.8 Automatic update
MTU indicates the data length of BLE single packet. The default value is 247, and the payload length is 244.
After the module is successfully connected, the slave initiates the MTU update. If the host accepts and responds,
the slave MTU is used. If the host refuses and responds, the master and slave use the MTU of the host.
5.9 Compatibility with other modules of our company
When our other modules are connected to E104-BT53C3, input the MAC address of E104-BT53C3, you need to pay
attention to the size end.
Chapter 6 AT Command
When other modules of our company connect to E104-BT53C3, enter the MAC address of E104-BT53C3, and pay
attention to the problems of the size end.
6.1 Instruction specification
Instruction type
Instruction format
Deacription
Query instruction
AT+[X]?
This command is used to query the
parameters of the setup command.
