ZigBee Coordinator using NRF52840

[Bosemani_Raja]

Hai,

I'm using nrf52840 to develop a Zigbee coordinator.

I found some examples in NRF sdk and NRF connect sdk.

I have some doubts regarding that. (I'm new to ZigBee)

1. How many sub devices can add in nrf52840 as an coordinator? (I already read some questions, I found that maximum is 32 but 24 is tested. is it true I have another question)

2. How to increase a sub device count? (can we add external memory to increase devices?)

3. I have some sensors and switches, I tried to connect and read through ZigBee CLI commands program in nrf52840, I can read and write attributes. Instead of cli commands i want to without cli commands.  For example : If the device connected to coordinator (nrf52840) .it should automatically read and display name and type and device and then available clusters. Also i want to control from the coordinator. (Bulbs) Do u have any reference example like this?

Best regards 

Bosemani

[Bosemani_Raja]

Hello Edvin 

Now I'm able to get button press event in coordinator.

I just merged Bulb example and coordinator example. By registering ZB_AF_SET_ENDPOINT_HANDLER now I'm getting callback.

Now I have another doubt. I have door sensor and PIR sensor also. how can I get callback for this?

Can you it update fast..

Thank you

Best regards

Bosemani.

[Edvin]

As far as I know we don't have any samples using PIR sensors, so you need to look at how the light switch is set up, and apply the same logic to the PIR cluster.

I suggest you start by looking at the zb_zcl_occupancy_sensing.h. I believe this is the cluster for PIR.

Best regards,

Edvin

[Bosemani_Raja]

Hello Edvin 

I tried using CLI example.

After end device joining the network. It sending enroll request. 

31 95.606  0x6592  ZigBee HA ZCL IAS Zone: Zone Enroll Request, Seq: 0

But coordinator not responding anything.

How can I respond to request?

BR,

Bose

[Edvin]

Hello,

Is the coordinator open for new connections at this point in time? If you are not sure, try resetting the coordinator before you start the device that tries to join. Also make sure that they are using the same channel. If you are using NCS, that would be a configuration in your prj.conf (CONFIG_ZIGBEE_CHANNEL), and if you are using the nRF5 SDK it would be a setting in the skd_config.h file.

Best regards,

Edvin

[Bosemani_Raja]

Hai Edvin 

I solved the problem.

I created IAS client  and added in coordinator.

now I'm getting Enroll request, also Status change notification also.

Thank you.

Best regards

Bose

[Bosemani_Raja]

Hai Edvin 

I have another one doubt.

In light coordinator example. when the power is on. it start network steering for 180 seconds.

How to start it manually? and stop it manually.

What API I have to use?

can u give example for that?

BR 

Bose

[Edvin]

Hello Bose, 

I still don't know what SDK you are using (nRF5 SDK or NCS). I'll assume that you are using NCS.

Looking at the NCS\nrf\samples\zigbee\network_coordinator sample, the button_changed button handler uses the API to resume the network steering:

bdb_start_top_level_commissioning(ZB_BDB_NETWORK_STEERING);

For follow-up questions, please open a new ticket. I will be working on something else for the next month, so I am just checking by my queue to clean up now. My cases will not be monitored before october.

Best regards,

Edvin

[Bosemani_Raja]

Thank you Edvin  

I got it.