# Node-red TCA9548A interface

**URL:** <https://discourse.nodered.org/t/node-red-tca9548a-interface/36309>\
**Category:** General\
**Created:** [22 November 2020 07:44 UTC](https://discourse.nodered.org/t/node-red-tca9548a-interface/36309 "2020-11-22T07:44:56Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![QIoT](https://avatars.discourse-cdn.com/v4/letter/q/f07891/32.png) [@QIoT](https://discourse.nodered.org/u/QIoT)\
**Post date:** [22 November 2020 07:44 UTC](https://discourse.nodered.org/t/node-red-tca9548a-interface/36309/1 "2020-11-22T07:44:56Z")

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Hi guys,

I need to connect multiple I2C devices with the same address but only one bus available. So TCA9548A is the chip to use.

But I cannot find TCA9548A interface with node-red. Is there some way node-red can support this chip or other I2C multiplexer?

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [21 January 2021 07:45 UTC](https://discourse.nodered.org/t/node-red-tca9548a-interface/36309/2 "2021-01-21T07:45:07Z")

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