What's the difference of TI 15.4 to Zigbee (Z-Stack)?
Why would someone use TI 15.4 instead of Zigbee?
Why would someone use Zigbee instead of TI 15.4?
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What's the difference of TI 15.4 to Zigbee (Z-Stack)?
Why would someone use TI 15.4 instead of Zigbee?
Why would someone use Zigbee instead of TI 15.4?
Hi,
The TI 15.4 Stack and Z-Stack both use 802.15.4 IEEE compliant MAC and PHY layers. Both are provided in the CC13x2/26x2 SDK
Benefits of Zigbee include interoperability between Zigbee certified devices, common application level clusters, self-healing mesh network, etc.
For short videos on Zigbee, please see here.
I've contacted a TI 15.4 Stack expert to share benefits of using it.
Regards,
Toby
Hello Arthur,
TI 15.4 stack will provide you with the ability to create a network of devices utilizing sub 1 ghz. The benefits of sub 1 Ghz is that is less crowded band and allows for more penetration. The TI 15.4 stack also combats hackers/security by using Frequency hopping scheme also standardized by the wisun alliance. It is a light weight solution allowing to have bigger application code sizes while still allowing you to connect 150+ devices to a single parent.
Regards,
AB
MEMORY:
- Zigbee includes network layer (NWK) and application support layer (APS) for network management and application support primitives. This takes up space in flash, which leaves less room for application code.
- TI 15.4 stack includes a simple application layer which is easily customizable. This allows more room for application code.
--> If more space for application code is required, consider TI 15.4 stack. If an open standard with well-defined network management is required, consider Zigbee.
INTEROPERABILITY:
- Zigbee defines standard application profiles, which allows for interoperability between different devices (lights, switches, doorlocks, etc). Examples of different devices are provided in the SDK. Devices from different manufacturers are interoperable, so long as they have received Zigbee certification.
- As the TI 15.4 stack's application layer is highly customizable, more design time may be required for interoperability between devices which run this stack.
--> If a closed network is required OR a proprietary network is required, consider TI 15.4 stack. If interoperability is required, consider Zigbee.
RANGE/PHY:
- Our Zigbee stack (Z-Stack) uses the 2.4GHz PHY. It implements a self-healing mesh network.
- TI 15.4 stack may use the 2.4 GHz PHY or the Sub-1 GHz PHY (with or without frequency hopping). It implements a star network.
--> If long single-hop range OR obstacle immunity are required, consider TI 15.4 stack on Sub-1 PHY. If range through hops is sufficient, consider Zigbee.
SECURITY:
- Zigbee uses NWK layer encryption. APS encryption may also be enabled.
- TI 15.4 stack offers MAC level encryption. Frequency hopping also adds a level of security.
--> Security through packet encryption is offered in both stacks.
Hello Mr. Arthur Crippa Burigo,
Possible? Yes. Certifiable? No.
Also, you have not given us enough information to objectively answer your questions.
Can you please give us more information so we can help you?
Sincerely,
Toby and AB
Our Zigbee core as provided in the latest CC13x2/26x2 SDK is R22 certified with the 2.4 GHz PHY: http://www.ti.com/tool/z-stack
Zigbee spec defines sub GHz but TI Z-Stack doesn't support sub GHz Zigbee protocol.