7.2.2 Transparent UART Data Transfer and Throughput Measurement

Transparent UART data transfer demonstrates the bi-directional data exchange between mobile device and the RNBD451 module. The data from the Microchip Bluetooth Data application is transferred to the RNBD451 module over the Bluetooth Low Energy link. The data needed for the RNBD451 module is provided from the host PC via wired connection (MicroUSB), which is then transferred to the mobile device over the Bluetooth Low Energy link. The data to the RNBD451 module can come from the host PC through any software application.

The following is the data flow sequence:
  • Mobile application to Device to PC (via UART)
  • PC (via UART) to Device to Mobile application
Figure 7-16. Data Flow

Demo Modes

The following are the two modes supported in UART mode:
  • Burst mode – Designed for the throughput evaluation via massive data transportation
  • Text mode – Designed for the simple bi-directional data exchange