Starting new sw612 ble,wifi project strategy

[Olfox]

Hi Nxp,

After reaching the limit of the ESP32S3 that doesn't support ble long range in a multiconnect way, i would like to fully redesign th product with RW612 based module.

The RW612 will be:

- ble central :connected to maximum 4 peripherals in ble long range ( full coded phy). 

- Run simultaneously the one peripheral role to be connected to a smatphone (to switch in wifi )

- Wifi Access point to get datalog files from an SD card

- Ota via our Mobile app

- Display informations on a 320*240 rgb screen ( lvgl v9)

- Use RTC with back up batterie to save time when main power is off.

RW612 seems to be a good candidate to replace our esp32s3. The module from insight sip ISP5261-WX seems to be appropriate too. 

From developpement point of view, MCUXpresso SDK example can be a good starting point.

My questions are:

1 - Is wifi_cli_over_ble_wu the best starting point, or should i start from ota_mcuboot_server ?

2 - With esp32 Nimble stack, the problem was the multiconnect that requires vendor hci command that were not implemented into not accessible low level host controller command for long range.

I didn't find any example with central and peripheral + multi connect several peripheral in examples. Can you confirm it is possible in long range ble ?

3 - May be i can avoid the rw612 to be peripheral by letting wifi ON all the time, but it is a bit a pitty to do so if 99,9% of the time wifi is off. I would prefer to avoid to disturb radio with wifi if it is not used... And just switch wifi on when needed via ble.

4 - Most examples uses freertos ( like i did with esp32). But should i consider zephyr too. Does zephyr supports better the ble coded phy ? What is the ble stack used in nxp product ?

5 - Is Vs code more recommended now to developp? I really miss debug feature with esp32...

Hope you will have enough information to guide me i the best possible way

Thank you !

[sofiaurueta]

Hello,

Hope you are doing well.

I understand you need a BT + Wi-Fi project, the wifi_cli_over_ble_wu example implements a wireless function based on “wifi_cli” demo and “wireless_uart” demo, which enables users to use wifi command-line interface(CLI) over BLE wireless uart.

I would also recommend checking the wireless_uart example, the application can accept at most 8 connections when working as peripheral or central.

You can find more information about the example on: https://mcuxpresso.nxp.com/mcuxsdk/latest/html/examples/edgefast_bluetooth_examples/wireless_uart/re...

As for the use of FreeRTOS or Zephyr, it depends on your requirements and application, you can read more about the BL Supported features on Zephyr here: https://docs.zephyrproject.org/latest/connectivity/bluetooth/features.html and RW612 Support for Zephyr: https://docs.zephyrproject.org/latest/boards/nxp/frdm_rw612/doc/index.html. FreeRTOS is pre-integrated in the MCUXpresso SDK package.

MCUXpresso for VS Code is recommended for supported devices such as the RW612, and is supported to create, build and debug applications based on MCUXpresso SDK or Zephyr projects.

You could follow this guide: Getting Started with MCUXpresso for Visual Studio Code

Best Regards,

Ana Sofia