# Unable to read Cluster attribute (new ZigBeeDevice driver) **URL:** \ **Category:** Developers\ **Tags:** app, zigbee, homey-pro\ **Created:** [January 2, 2024, 4:01pm UTC](https://community.homey.app/t/unable-to-read-cluster-attribute-new-zigbeedevice-driver/99734 "2024-01-02T16:01:45Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Ricardo\_Santos](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/ricardo_santos/32/79224_2.png) [@Ricardo\_Santos](https://community.homey.app/u/Ricardo_Santos)\ **Post date:** [January 2, 2024, 4:01pm UTC](https://community.homey.app/t/unable-to-read-cluster-attribute-new-zigbeedevice-driver/99734/1 "2024-01-02T16:01:45Z")
Hi, I’m developing a new driver for a Zigbee Occupancy Sensor (SONOFF SNZB-06P) using the ZigBeeDevice library. I’m able to add the device into HomeyPro App and I do see in the debug the occupancy status change correctly and a report being received in Homey. But I cannot read its occupancy status. The reason is that the reportParser in ZigBeeDevice.js is not able to read the attribute value in the Cluster report as a 0 or 1. Instead, in the debug I see the the attribute is printed as a **Bitmap []**. See below two examples of this attribute when occupancy is detected or not. Below, the payloadReport is the output of: console.log(‘payload[report]:’, payload[report]); **##== OCCUPANCY = FALSE** 2024-01-02T15:36:44.391Z [log] [ManagerDrivers] [Driver:snzb-06p-occupancy-sensor] [Device:8a4597e6-**f717-438f-a69d-7f9aef124a80] [dbg] get → alarm\_motion → read attribute (cluster: occupancySensing, attributeId: occupancy, endpoint: 1) → raw result: { occupancy: Bitmap [] }** 2024-01-02T15:36:44.392Z [log] [ManagerDrivers] [Driver:snzb-06p-occupancy-sensor] [Device:8a4597e6-f717-438f-a69d-7f9aef124a80] [dbg] handle report (cluster: occupancySensing, capability: alarm\_motion), **raw payload: { occupancy: Bitmap [] }** **payload[report]: Bitmap []** **##== OCCUPANCY = TRUE** 2024-01-02T15:42:34.308Z [log] [ManagerDrivers] [Driver:snzb-06p-occupancy-sensor] [Device:8a4597e6-f717-438f-a69d-7f9aef124a80] [dbg] handle report (cluster: occupancySensing, capability: alarm\_motion), **raw payload: { occupancy: Bitmap [occupied] }** **payload[report]: Bitmap [occupied]** I’ve tried reading this attribute in several ways: I tried comparing with integer 1 or char ‘1’, treat it as an Array and access position [0], without success. Any hint on how I can read the Bitmap [] value of this attribute? According to the ZCL this should be a bit set to 0 or 1. ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/2/a/2a61f180bec758cc20e0f82e253c589a45e92b52.png) Disclaimer: This is my first attempt at writing an App for HomeyPro 😀 and I’m not a pro developer, even though I’ve programmed in Java, C++, C, etc in University. Cheers, Ricardo ---
**Author:** ![Ricardo\_Santos](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/ricardo_santos/32/79224_2.png) [@Ricardo\_Santos](https://community.homey.app/u/Ricardo_Santos)\ **Post date:** [January 2, 2024, 5:02pm UTC](https://community.homey.app/t/unable-to-read-cluster-attribute-new-zigbeedevice-driver/99734/2 "2024-01-02T17:02:46Z")
I believe the cluster definition for this sensor may require update, as it has a TODO comment in the Homey cluster definition (file: zigbee-clusters/lib/clusters/occupancySensing.js): –snip– const ATTRIBUTES = { occupancy: { id: 0, type: ZCLDataTypes.map8(‘occupied’) }, **// TODO: verify this bitmap** –snip– I’ll look into it, but in case there’s some insight on how to correct it, it’s highly appreciated. Thanks! Cheers, Ricardo ---
**Author:** ![robertklep](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robertklep/32/160628_2.png) [@robertklep](https://community.homey.app/u/robertklep)\ **Post date:** [January 2, 2024, 5:30pm UTC](https://community.homey.app/t/unable-to-read-cluster-attribute-new-zigbeedevice-driver/99734/3 "2024-01-02T17:30:11Z")
Try [`getBit(0)`](https://github.com/athombv/node-data-types/blob/6adc1f6c6f455a243d9d84b22eb5f6daf67f759e/lib/DataTypes.js#L62) (or possibly `getBit(1)`). ---
**Author:** ![Ricardo\_Santos](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/ricardo_santos/32/79224_2.png) [@Ricardo\_Santos](https://community.homey.app/u/Ricardo_Santos)\ **Post date:** [January 2, 2024, 6:05pm UTC](https://community.homey.app/t/unable-to-read-cluster-attribute-new-zigbeedevice-driver/99734/4 "2024-01-02T18:05:38Z")
It worked with getBit(0), @robertklep! Many thanks for the hint and very fast reply. 😉 Cheers, Ricardo ---
**Author:** ![robertklep](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robertklep/32/160628_2.png) [@robertklep](https://community.homey.app/u/robertklep)\ **Post date:** [January 3, 2024, 6:22am UTC](https://community.homey.app/t/unable-to-read-cluster-attribute-new-zigbeedevice-driver/99734/5 "2024-01-03T06:22:09Z")
I couldn’t find anything related to this in the documentation, I had to search through the various modules to find where `Bitmap` was defined and how to use it 🤔 ---
**Author:** ![Ricardo\_Santos](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/ricardo_santos/32/79224_2.png) [@Ricardo\_Santos](https://community.homey.app/u/Ricardo_Santos)\ **Post date:** [January 3, 2024, 5:24pm UTC](https://community.homey.app/t/unable-to-read-cluster-attribute-new-zigbeedevice-driver/99734/6 "2024-01-03T17:24:02Z")
Any chance you can point me where to find it in the modules? I’m new to programming in Homey and not sure where to find it. Thanks. ---
**Author:** ![robertklep](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robertklep/32/160628_2.png) [@robertklep](https://community.homey.app/u/robertklep)\ **Post date:** [January 3, 2024, 6:47pm UTC](https://community.homey.app/t/unable-to-read-cluster-attribute-new-zigbeedevice-driver/99734/7 "2024-01-03T18:47:42Z")
> [@Ricardo\_Santos](#): > > Any chance you can point me where to find it in the modules? I linked to the relevant module, `@athombv/data-types`: [GitHub - athombv/node-data-types: Binary Data Parsers](https://github.com/athombv/node-data-types) ---
**Author:** ![Ricardo\_Santos](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/ricardo_santos/32/79224_2.png) [@Ricardo\_Santos](https://community.homey.app/u/Ricardo_Santos)\ **Post date:** [January 5, 2024, 4:07pm UTC](https://community.homey.app/t/unable-to-read-cluster-attribute-new-zigbeedevice-driver/99734/8 "2024-01-05T16:07:35Z")
Many thanks @robertklep! This is really helpful. Cheers, Ricardo