search

adafruit / circuitpython

CircuitPython - a Python implementation for teaching coding with microcontrollers
https://circuitpython.org
MIT License
3.96k stars 1.16k forks source link

NRF52: Support for Zigbee Protocol #4007

Open maziarzamani opened 3 years ago

maziarzamani commented 3 years ago

I am currently working with the Zigbee protocol on nrf52840 in Zephyr and was actually thinking about switching to CircuitPython however I have not seen any Zigbee related API. Is anyone working on this as we speak?

tannewt commented 3 years ago

I don't know of anyone! Let us know how we can help you add it.

maziarzamani commented 3 years ago

I don't know of anyone! Let us know how we can help you add it.

Where do we begin? :-) As I understand its an entire new protocol that has to be added to the framework the same way as wifi?

tannewt commented 3 years ago

@maziarzamani The first thing to do is determine what the new API will be. The research phase of coming up with this is collecting links to other implementations and listing the uses we want to support. Once we have examples, I usually document the goal API and write non-working examples for it.

Bonus points for any existing Python zigbee APIs since we could choose to follow their API.

dhalbert commented 3 years ago

Zigbee is a licensed protocol, though it appears that it could be used for free without certification. I have not seen a really clear answer about this. We are currently using the nRF SoftDevice for BLE. There is SoftDevice support for Zigbee, but again, I don't know if there are licensing restrictions. I would assume Zephyr has its own Zigbee stack. Are there restrictions on its use?

maziarzamani commented 3 years ago

Bit off topic. For me, it doesn't really matter whether its nrf52 or any of the Silicon Labs IC's which are currently utilized by IKEA for their Trådfri series. I am currently using both IC's for ZigBee applications, and at the end of the day I'd rather use SiLabs, but I am assuming no such porting really exists?

dglaude commented 3 years ago

Did someone say Trådfri? Wake me up if there is a way to integrate CircuitPython with Trådfri... my house is slowly transforming to that technology.

maziarzamani commented 3 years ago

Maybe the easiest way to get around this is to use the XBee3 modules, which already supports MicroPython.

maziarzamani commented 3 years ago

Did someone say Trådfri? Wake me up if there is a way to integrate CircuitPython with Trådfri... my house is slowly transforming to that technology.

Likewise, but I am not really looking to reverse engineer any "TRÅDFRI protocol" here, but merely adding a new one which works with a different system (Conbee etc.).

dhalbert commented 3 years ago

Certainly, a CircuitPython library could be written for an external module, and there would be no licensing issues. That is probably much less work than supporting Zigbee via the native SoftDevice implementation or a transplanted zephyr implementation.

ryang14 commented 3 years ago

The STM32WB55 series runs the radio firmware on a second core. This lets it act like a discrete module integrated into the chip.

tannewt commented 3 years ago

I'd rather use SiLabs, but I am assuming no such porting really exists?

I've looked at their line up of chips but haven't found ones that provide something unique to CP. We can support anything with 32k RAM and native USB but there is a non-trivial amount of work to support new peripherals.

maziarzamani commented 3 years ago

I am sort of considering pivoting to the XBee3 which already runs MicroPython out of the box and can be bought as dev boards or modules. All the (nasty) low-level ZigBee code abstraction is already dealt with. At this point I do not see the point in all the hassle with trying to reinvent the wheel on nrf52.

chbarg commented 3 years ago

I am sort of considering pivoting to the XBee3 which already runs MicroPython out of the box and can be bought as dev boards or modules. All the (nasty) low-level ZigBee code abstraction is already dealt with. At this point I do not see the point in all the hassle with trying to reinvent the wheel on nrf52.

As far as I know, the XBees do not have the Zigbee cluster communication fully implemented in Micropython.

nospam2000 commented 3 years ago

Yout might want to have a look at those links: MicroPython and Ikea HomeSmart Ikea HomeSmart product insights and how to hack into them. They are using the EFM32 chips

Gecko Zigbee Python interface This is a pure Python implementation of a IEEE802.15.4 and ZigBee network stack that works with MicroPython for the EFM32 chips

driver for the EFM32 ZigBee radio

I created a feature request issue there, but here is probably the better place.

It would be really great if you could make it possible to easily integrate DIY sensors, switches and lights to integrate into existing ZLL infrastructure, e.g. IKEA TRÅDFRI or Philips Hue.

tbjers commented 2 years ago

Howdy, I was directed to this issue when I asked about CP Zigbee/Z-wave, and was wondering if anybody here has made any headway into writing anything for CircuitPython? Or, if you have done research but not written anything and would like help implementing something. I would be starting from scratch, so any pointers would be helpful. But, seeing as I missed 24 pull requests in 2021, I might as well make up for it in 2022.