ironicgull68
Posts: 20
Joined: Sun Jan 22, 2017 3:49 pm

Raspberry Pi smart Home

Sun Jun 04, 2017 6:21 pm

Friends and Fellow Pi coders,
I am working on a home system that allows me to control basically everything
My uncle has done various things from a controllable toaster, sink, and fridge, but he lives in Ecuador so I cant really have him over to help.
The main thing I am working on in my house is remote control lights.
All the bedrooms in my house are controlled by light remotes that can control the light and fan.
I believe the company is Hunter and I don't know what the model is. So, my question to you is, how could I control this without the remote?
Also, does anybody know how in my life I could make a toaster that automatically toasts stuff when you tell it to? I have some ideas but not fully complete ones. Any replies are appreciated :D

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topguy
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Location: Trondheim, Norway

Re: Raspberry Pi smart Home

Sun Jun 04, 2017 11:08 pm

So, my question to you is, how could I control this without the remote?
First figure out if the remote is based on IR ( infrared light ) or RF (Radio).
It probably says on a label on the remote itself, and some googling says its probably RF in the 304-311Mhz range or 350Mhz.
So you would need to find a suitable radio transmitter that could be connected to the Pi.

peterlite
Posts: 720
Joined: Sun Apr 17, 2016 4:00 am

Re: Raspberry Pi smart Home

Mon Jun 05, 2017 12:56 am

For toasters and remotes, you might have to break open the device to find out what chips are used inside. From there, you might have a way in.

For the toaster example, the toaster might have an electronic heat sensor with a connection you can replicate to the Pi for monitoring the temperature of the toast. You can switch the toaster on with a relay, measure the temp then switch off the toaster with the same relay.

You could put the bread in the toaster the night before and wake up to the smell of fresh toast. When your Pi skills are more advanced, you build a robot with a knife to spread on the avocado or peanut butter.

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davidcoton
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Location: Cambridge, UK

Re: Raspberry Pi smart Home

Mon Jun 05, 2017 8:58 am

To the OP and anyone else with a similar project to control mains equipment:

Be very careful when connecting directly to mains powered equipment. Mains voltages can destroy your Pi, burn your house, or cause serious (even fatal) injury.
Make sure you understand the applicable regulations, and how to work safely. If you understand what you are doing, but are not qualified, consult an electrician.
If you don't understand, then don't do it.

Simply replicating the remote control signals should be safe.
Signature retired

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bensimmo
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Location: East Yorkshire

Re: Raspberry Pi smart Home

Mon Jun 05, 2017 11:04 am

An 'easy' method for the remote may be to just use the Pi as the 'button'.
Wire it up to the remotes buttons and use it to create the press.

Job done.

Toaster, who's going to put the bread in and out assuming it a compact pull down and not a conveyor toaster.
Leaving bread in for a while gives manky dry toast as the bread dries up as it sits there.
Who's going to butter it?
Given you need to be there to load and unload, setting anything remotely seems pointless.

Now a conveyer toaster, as seen in hotels etc, may be easier. Make a loading airtight hopper and switch it on of and adjust the settings, just tapping into the dials and switches there?

If it's just to signal when it pops up and give you a buzz etc then just place a contact switch for when it's in the toasting position, so it knows when it starts and will know when it stops.

ironicgull68
Posts: 20
Joined: Sun Jan 22, 2017 3:49 pm

Re: Raspberry Pi smart Home

Mon Jun 05, 2017 11:18 am

I had an Idea last night but never really knew if it was possible
What if I can make a retractor thing that goes over the front of the toaster and I control it to tell it when to pull down and when to pull up if needed
The problems/questions:
How can I make it compact
Do I need a pi to execute the action and one to control the retractor
How could I DIY build the retractor beam

MaddogBailey
Posts: 27
Joined: Mon Feb 04, 2013 6:17 pm
Location: Southend-on Sea, Essex

Re: Raspberry Pi smart Home

Mon Jun 05, 2017 11:21 am

Try Googling 'linear actuator'

ironicgull68
Posts: 20
Joined: Sun Jan 22, 2017 3:49 pm

Re: Raspberry Pi smart Home

Mon Jun 05, 2017 12:32 pm

I looked into that but the problem is that linear actuators are very expensive and likely to be very big... Anything I could possibly do with the old engine of a remote control car?
This would turn a coil which would push down the toaster thing and start the process.

ironicgull68
Posts: 20
Joined: Sun Jan 22, 2017 3:49 pm

Re: Raspberry Pi smart Home

Mon Jun 05, 2017 12:45 pm

Also, going back to lights, is there a sort of miniature piston I can use that when I press a button on my phone it turns on the light switch? I've looked at wemo and always wondered how it works and realized this is a possibility. Any ideas? I would most likely make the switch myself in that case.

boyoh
Posts: 1344
Joined: Fri Nov 23, 2012 3:30 pm
Location: Selby. North Yorkshire .UK

Re: Raspberry Pi smart Home

Mon Jun 05, 2017 7:43 pm

Use Solenoids ,to push switches and move levers

Use light sensors to check for burnt toast

Check your smoke alarms are working ok.

Up grade your house insurance & Life insurance

Best do luck BoyOh
BoyOh ( Selby, North Yorkshire.UK)
Some Times Right Some Times Wrong

ironicgull68
Posts: 20
Joined: Sun Jan 22, 2017 3:49 pm

Re: Raspberry Pi smart Home

Tue Jun 06, 2017 12:33 pm

Boyoh,
How would I use solenoids for a light switch, sorry I'm kind of a noob lol
Any idea?

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B.Goode
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Joined: Mon Sep 01, 2014 4:03 pm
Location: UK

Re: Raspberry Pi smart Home

Tue Jun 06, 2017 12:51 pm

ironicgull68 wrote:Boyoh,
How would I use solenoids for a light switch, sorry I'm kind of a noob lol
Any idea?
You simply bolt it or superglue it in the right place and use it as a substitute for a finger.

(There might have been an element of humour intended in part of @boyoh's reply, as there is in mine... )

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B.Goode
Posts: 8912
Joined: Mon Sep 01, 2014 4:03 pm
Location: UK

Re: Raspberry Pi smart Home

Tue Jun 06, 2017 12:55 pm

For safer ways of controlling mains electricity see devices like these -

https://energenie4u.co.uk/catalogue/product/ENER002-2PI

That's serious, no joke.

Hrm232
Posts: 2
Joined: Mon Mar 20, 2017 7:29 pm

Re: Raspberry Pi smart Home

Wed Jun 07, 2017 1:59 pm

all you should need is a USB inferred receiver and a 3.5mm jack transmitter

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