# Aquarium Controller - Raspberry PI 4B Node-RED, Atlas-Scientific i2c Devices, NCD i2c Relay Board

**URL:** <https://discourse.nodered.org/t/aquarium-controller-raspberry-pi-4b-node-red-atlas-scientific-i2c-devices-ncd-i2c-relay-board/25839>\
**Category:** Share Your Projects\
**Created:** [30 April 2020 23:37 UTC](https://discourse.nodered.org/t/aquarium-controller-raspberry-pi-4b-node-red-atlas-scientific-i2c-devices-ncd-i2c-relay-board/25839 "2020-04-30T23:37:39Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [1 May 2020 07:14 UTC](https://discourse.nodered.org/t/aquarium-controller-raspberry-pi-4b-node-red-atlas-scientific-i2c-devices-ncd-i2c-relay-board/25839/3 "2020-05-01T07:14:34Z")

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Hi @SonoraTechnical, would you be willing to provide the following...

- Parts listing
- Circuit diagrams
- Details (in non technical terms) of the control system. E.g  
what and why each component is chosen, it's function in the grand scheme. For example, why a PH sensor?
- Any future plans (like measuring nitrates or ammonia, or administering additives)

The reason I ask is, a friend of mine is keen to get into automation. He's good with fish, I'm good with programming & reasonably ok with hardware & so the additional info would give us (and anyone else following) a head start

I will follow your progress. Thanks. 👍

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