After establishing the connection, both the peripheral and central devices are allowed to
transfer data. This data communication happens OTA using the transparent UART service.
Data Sent from the Central Device (Mobile) to the Peripheral Device (RNBD451) Module
The central device sends data ‘0’ to the RNBD451 module. The Opcode
ATT_WRITE_CMD frame represents the data. The user can see the data
value under the “Decode” section. The data shown is the corresponding hex value. This
packet is grouped under the ATT tab. Figure 2-48. Wireless Protocol Suite
Application Packet View Data Transfer
Data Sent from the Peripheral Device (RNBD451)
Module to the Central Device (Mobile)
The RNBD451 module sends data
‘1’ to the central device. The Opcode
ATT_HANDLE_VALUE_NTF frame represents the data. The user can see
the data value under the “Decode” section. The data shown is the corresponding hex
value. This packet is grouped under the ATT tab. Figure 2-49. Wireless Protocol Suite
Application Packet View Data Transfer
