# Pulling data from I2C to gauge

**URL:** <https://discourse.nodered.org/t/pulling-data-from-i2c-to-gauge/53597>\
**Category:** General\
**Created:** [11 November 2021 20:27 UTC](https://discourse.nodered.org/t/pulling-data-from-i2c-to-gauge/53597 "2021-11-11T20:27:35Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![markus2121212](https://avatars.discourse-cdn.com/v4/letter/m/ee7513/32.png) [@markus2121212](https://discourse.nodered.org/u/markus2121212)\
**Post date:** [11 November 2021 20:27 UTC](https://discourse.nodered.org/t/pulling-data-from-i2c-to-gauge/53597/1 "2021-11-11T20:27:35Z")

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Guys I really dont know how to get temperature data from my sensor.  
I use MCP9808 and I want to use node-red-contrib-i2c.  
I got already sensor adress which is 0x18  
Now I know that if I want to pull data from sensor I have to use 'i2c in' node- but what should I type there.  
I've got it like that:

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/6/2/6211420741b9c0b4b71c07d11eb9114e6f2868d9.png)  
Gauge shows:  
 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/9/0/9086cfa27ded347a1c30047f7464c7c16d7e4aab.png)  
I don't quite understand all bit stuff. What is this bus adress, what is this command bracket?  
Thank u for help

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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:** [10 January 2022 20:28 UTC](https://discourse.nodered.org/t/pulling-data-from-i2c-to-gauge/53597/2 "2022-01-10T20:28:20Z")

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