Sunday, 14 May 2017

Hot water control using a Raspberry Pi Zero W

Following on from the first blog about the hot water heating control here's what I put together for the mounting.
Whilst looking for a suitable enclosure I came across an surface mount electrical socket back-box and I got to thinking "how can I mount the RPi W and relay in this?" so after some head scratching I thought about 3D printing some carriers to go inside the back-box.
The picture above shows two carriers printed to support the RPi and the relay board.

Then I made the required entry holes in the back-box for the power cable (USB), the mains switching cable for the relay and the temperature sensor cable.

This contraption has been sitting on my desk for a few weeks running quite happily and I've been checking the event log to make sure it's been switching on and off when it should.

Next to interface it to the existing wiring.


Anonymous said...

Howdy! This is my first visit to your blog! We are a team
of volunteers and starting a new project in a community in the
same niche. Your blog provided us useful information to
work on. You have done a wonderful job!

Gadjet said...

Glad you found the information useful. Thanks for commenting.

Anonymous said...

I do accept as true with all the concepts you've introduced in your post.
They're really convincing and can certainly work. Still, the posts are very brief
for newbies. May just you please lengthen them a little from next time?
Thanks for the post.

Gadjet said...

I agree, most of my posts are not very detailed and I don't post very regularly, due to not having the time to spend writing detailed posts.
If you have any specific question please ask, I will always try to answer any questions.

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