LP-CC2652RB: How to modify examples for sending sensor data

In you case, I suppose you can use ZNP running on CC2652 and Arduino acts as host to send MT commands for Zigbee communicating. I would suggest you to use ZTool to get familiar with MT commands before you do this on Arduino. You can try to refer to https://sunmaysky.blogspot.com/2017/02/use-ztool-z-stack-30-znp-to-set-up.html to do the test.

Thanks for your reply. I think I was initially misleading. I am trying to move away from the Arduino as the CC2652 offers a complete solution. So I am just connecting my HC-SR04 sensor to my launchpad and would like to modify one of the example applications to send the sensor readings from the end node to the controller. Which of the examples would be the best fit? I see many different applications but I haven't found one that really relates to external sensors. If I were to use, for example, the zed_sampleapp_lp_CC2652RB_tirtos_ccs, what within sampleapp.c do I need to change to send the data periodically? It might be very trivial but I am just not finding the right documentation for it.

May I know what kind of application you will implement using HC-SR04 sensor?

Hi Finn,

Over what Zigbee cluster do you plan on sending data?  The device must have a local bind to report attributes periodically, otherwise you can set a timer to send data at the desired time.  Several Zigbee SLAs (Custom Device, Fundamentals, etc) provide assistance in regards to this type of implementation.

Regards,
Ryan

My thought was to use the HA profile and the Measurement/Sensing Cluster. There is a bunch of different use cases for different types of sensors, but will that still work for the ultrasonic sensor HC-SR04? It's not listed in the specs and there are no example project relating to it.

Ultrasonic is typically used for occupancy sensing and there are ultrasonic attributes and configurations available from the ZCL.  I recommend using the ZCL_CLUSTER_ID_MS_OCCUPANCY_SENSING cluster, you can start with the Zigbee Application Builder and sampleapp with SysConfig -> Zigbee Application Endpoint -> Zigbee Device Type set to Occupancy Sensor.

Regards,
Ryan

I agree with Ryan to use ZCL_CLUSTER_ID_MS_OCCUPANCY_SENSING but if you don’t use HC-SR04 as occupancy detection and mean to do distance measurements, you might need to create proprietary attribute for your case.

Thanks. Are there any sections of the SimpleLink Academy (or in other places) that offer help with how to edit the sampleapp for custom use cases? The guides I found are using the example projects as is without making any changes.

Hi YiKai, 

I have a follow up question. While I think the Occupancy Sensor setup would work, I am wondering if there is a better approach. My goal is to let the sensor controller control the HC-Sr04 and return an int for the distance. All I need from the Zigbee functionality is to send that int as a package to the Controller node. Would it make more sense to use the generic sample app or something completely different?

Thanks,

Finn

Yes, it makes sense to use generic sample app for your application instead of Occupancy Sensor