# Triggering i2c relays via node red

**URL:** <https://discourse.nodered.org/t/triggering-i2c-relays-via-node-red/33867>\
**Category:** Dashboard\
**Created:** [7 October 2020 06:27 UTC](https://discourse.nodered.org/t/triggering-i2c-relays-via-node-red/33867 "2020-10-07T06:27:37Z")\
**Posts on this page:** 1\
**Showing post:** 14

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**Author:** ![juntiedt](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/juntiedt/32/58357_2.png) [@juntiedt](https://discourse.nodered.org/u/juntiedt)\
**Post date:** [9 October 2020 11:07 UTC](https://discourse.nodered.org/t/triggering-i2c-relays-via-node-red/33867/14 "2020-10-09T11:07:46Z")

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this is an seed i2c 4 relay board solution

> [@Node-red-contrib-i2c & Seeed Raspi Relay Board](https://discourse.nodered.org/t/node-red-contrib-i2c-seeed-raspi-relay-board/14316):
>
> I am trying to switch the seeed relay Board (4 relays) with node-red-contrib-i2c. Does anybody already successfully run this relay board with node-red? I only have a Python program and have problems to extract the command bytes. [LInk to Python code] ([https://github.com/johnwargo/Seeed-Studio-Relay-Board/blob/master/relay\_lib\_seeed.py](https://github.com/johnwargo/Seeed-Studio-Relay-Board/blob/master/relay_lib_seeed.py)) [wiki.seeedstudio.com/Raspberry\_Pi\_Relay\_Board\_v1.0/](http://wiki.seeedstudio.com/Raspberry_Pi_Relay_Board_v1.0/) Any help appreciated

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