[BLE] Examples related to peripheral_uart(BLE UART Service), central_uart(BLE Central UART)

Question

Hello, 
 I am programming BLE with the nRF52840-DK.

Toolchain Manager: v1.3.0 
 IDE: Visual Studio Code (VSCode) 
 SDK: ncs v2.6.0 
 
 My implementation goals are as follows:

A(Central) : Receive commands from a computer and transmit them to B via Bluetooth. Data received from B is then transmitted to the PC via UART communication. 
 B(Peripheral) : Acquire data from an ADC and transmit it to A via Bluetooth. 
 
 To achieve this, I have been studying the peripheral_uart (BLE UART Service) and central_uart (BLE Central UART) examples. However, I have not been able to find a way to configure the bitrate (speed) for Bluetooth in these examples. Could you point out if I am missing something? 
 Thank you.

P.S. Have I appropriately assigned the roles of central and peripheral?

Edvin · Accepted Answer

Hello, 
 For USBD, check out the usb cdc_acm sample found in ncs\zephyr\samples\subsys\usb\cdc_acm 
 The Running description says you need to specify a baudrate, but this is not really used as long as it is used for USB all the way (and not USB to UART). 
 
 seongmincho said: 1.3Mbps seems sufficient, could you provide some examples? 
 You can check out the throughput sample . (ncs
rf\samples\bluetooth	hroughput), but you can also follow the instructions in the developer academy course. Increase the MTU and data length to a maximum, and send data using notifications. To test the speed, send dummy data and make sure to queue it up as much as you can. Long packets gives higher throughput than short packets. Also, a connection interval of something like 50 or 100ms gives a decent throughput. A very short connection interval is not ideal for a high throughput. 
 
 Best regards, 
 Edvin

[BLE] Examples related to peripheral_uart(BLE UART Service), central_uart(BLE Central UART)

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