Zigbee versus TI 15.4

Arthur Crippa Búrigo

Intellectual 455 points

Other Parts Discussed in Thread: Z-STACK

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?

over 6 years ago

0 Toby over 6 years ago

TI__Mastermind 35070 points

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

0 Arthur Crippa Búrigo over 6 years ago in reply to Toby

Intellectual 455 points

Thanks, Toby, I'm waiting for the TI 15.4 argument.

0 AB over 6 years ago in reply to Arthur Crippa Búrigo

TI__Mastermind 23636 points

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,

0 Arthur Crippa Búrigo over 6 years ago in reply to AB

Intellectual 455 points

I was expecting a comparison. None of my 3 questions were answered.

0 Toby over 6 years ago in reply to Arthur Crippa Búrigo

TI__Mastermind 35070 points

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.