# Controlling 8 channel 12V relay with Pi **URL:** \ **Category:** Uncategorized\ **Created:** [7 November 2023 00:35 UTC](https://forum.core-electronics.com.au/t/controlling-8-channel-12v-relay-with-pi/18453 "2023-11-07T00:35:04Z")\ **Posts on this page:** 3\ **Page:** 2
**Author:** ![James46717](https://avatars.discourse-cdn.com/v4/letter/j/e5b9ba/32.png) [@James46717](https://forum.core-electronics.com.au/u/James46717)\ **Post date:** [11 November 2023 02:49 UTC](https://forum.core-electronics.com.au/t/controlling-8-channel-12v-relay-with-pi/18453/21 "2023-11-11T02:49:03Z")
> [@Robert93820](#): > > you have the “COM” and “NC” on the relay reversed Thanks for that. Edited pic and updated post. > [@Robert93820](#): > > 5V at VCC instead of 12V Yeah, at 5V the relay would not activate, but the LED would come on. Cheers Jim ---
**Author:** ![Brett258476](https://avatars.discourse-cdn.com/v4/letter/b/85e7bf/32.png) [@Brett258476](https://forum.core-electronics.com.au/u/Brett258476)\ **Post date:** [29 January 2024 04:30 UTC](https://forum.core-electronics.com.au/t/controlling-8-channel-12v-relay-with-pi/18453/22 "2024-01-29T04:30:19Z")
Did you have any images of how you had it connected in the end? Looking to use this same relay. Do you leave the green jumper as is? ---
**Author:** ![Karen107000](https://avatars.discourse-cdn.com/v4/letter/k/f05b48/32.png) [@Karen107000](https://forum.core-electronics.com.au/u/Karen107000)\ **Post date:** [2 April 2024 08:50 UTC](https://forum.core-electronics.com.au/t/controlling-8-channel-12v-relay-with-pi/18453/23 "2024-04-02T08:50:40Z")
Hi Brett, I just saw this response. The green jumper stayed on. On the board the vcc and gnd connected to the power supply. The gnd also connected to the Pi. In1-8 connect to GPIO connectors and run with HIGH and LOW Hopefully you have got it sorted by now, but if not, then hope this helps Karen [Previous page](https://forum.core-electronics.com.au/t/controlling-8-channel-12v-relay-with-pi/18453.md?page=1)