This app is used to test the Peripheral BLE high transmission rate. New Feature: 1. Add the data transmission negotiation function, and use the blocksize returned by the device as a reference when authenticating. 2. Retransmit function after incorporating data loss. 3. Data integrity checking functions, such as package order checking and CRC checking. 4. App Reliability Enhancement. Instructions: 1. Power on Peripheral BLE Device. 2. Open app and automatically search for devices starting with Peripheral String. 3. Select a specific device and connect 4. Enter the authentication code and block size, then authenticate. 5. After the authentication succeeds, the data sent by the Peripheral device is accepted, and the data can be sent to the Peripheral device. The App collects the data received and sent, and calculates the rate. The Send Data button can pause and continue to send data. 6. When disconnected, the information of the final data received and sent is counted. This app is only for customers' Peripheral devices.