6lowpan over BLE on nRF51822 (Micro:bit)

RE: 6lowpan over BLE on nRF51822 (Micro:bit)

madbilly — Wed, 14 Oct 2020 06:37:09 GMT

Hi,

Maybe the new Micro:bit based on nRF52833 will be able to support IPSP? https://tech.microbit.org/latest-revision/

But will it then be able to run an HTTP server as well?

Cheers 🙂

RE: 6lowpan over BLE on nRF51822 (Micro:bit)

madbilly — Tue, 28 Jul 2020 14:56:10 GMT

Hello Håkon,

Argh, that's a shame, but thank you for the explanation. I had thought that because there 6lowpan can be run on Arduino with XBee (https://github.com/telecombretagne/Arduino-IPv6Stack/) that 6lowpan over BLE could be run on the Micro:bit.

But I see that that stack does not include BLE and the XBee they reference has a Cortex-M3.

Okay I'll just have to find another way to interface Micro:Bits to the WebThings Gateway and maybe try and get an nRF2 board to try IPSP with.

Cheers 🙂

RE: 6lowpan over BLE on nRF51822 (Micro:bit)

Håkon Alseth — Tue, 28 Jul 2020 14:10:57 GMT

Hi,

[quote user=""]I'd like to use 6lowpan over BLE (that's IPSP isn't it?) on the nRF51822, specifically the Micro:Bit. What are the options for doing this?[/quote]

You will need more RAM to run IPSP using our SDK examples. Please also note that production grade S130 doesn't support IPSP (connection oriented channels), as described here:

https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.iotsdk.v0.9.0%2Fiot_softdevice.html&cp=4_1_0_0_3

[quote user=""]Are there other options that are known to run IPSP on this SoC? Apache MyNewt or Riot.OS with NimBLE? Zephyr OS?[/quote]

Zephyr has a IPSP sample: https://docs.zephyrproject.org/latest/samples/bluetooth/ipsp/README.html

However; this will not compile on nrf51-series, due to RAM restrictions. I do not know about the other OSes, but I suspect it will require more RAM, and possibly a CortexM4 to handle crypto within reasonable time.

Kind regards,

Håkon