Ebyte E104-BT5011A, Руководство пользователя

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it is high, it is internally pulled up, and when it is low, it is internally pulled down.
Chart 4 1 Pin definition table
5. Function
5.1 Roles
The module supports three roles: single master, single slave, and observer.
Single master and single slave support connecting to other types of Bluetooth products of our company. Support
data transparent transmission, support custom broadcast gap, scan gap, connection gap, support setting PHY.
The observer is only used to print the broadcast information of the ble devices around the module and cannot be
connected. Also supports conditional filtering.
5.1.1 Master
1. AT+ROLE=1 to select the host role. Restart to take effect after changing the role;
2. Command AT+SCAN=1 to open the host scan function;
3. Print status information when the host connection status changes. See 6.3 Status Printing.
5.1.1.1 Condition filtering
The device can be configured to bind MAC address, service UUID filtering, RSSI filtering and NAME filtering.
The four filtering methods can be used simultaneously, or individually enabled or disabled, but the service UUID
filtering cannot be disabled.

Service UUID filtering: The broadcast data of the slave must contain a 16-bit UUID field, and the UUID is
0xFFF0.

MAC address filtering: If users need MAC address filtering, they need to enable MAC address filtering
through AT+BOND=1, and add MAC addresses to the host through AT+BONDMAC. After the master scans
the slave, if it is the same as the binding list MAC address and service UUID, the master automatically
connects to the slave device.

NAME filtering: The broadcast data of the slave must include a name field, and the name must be a full name.