I am noticing the limitation on the ATMega328 chip and I haven 't even built my project

[G+_Jason Perry]

Originally shared by Jason Perry

 

I am noticing the limitation on the ATMega328 chip and I haven't even built my project. If you had to choose the six most.... five most (I am putting a tamper switch on the enclosure) important stats on a single room what would they be? I don't think limiting the number of sensors is a bad idea; since, sensors take up space and who wants to put a big ugly box on their ceiling.

 

Temp?

Humidity?

Motion?

Light?

Door position?

Window position?

Noise?

CO2 ?

Particulate?

[G+_Fr. Robert Ballecer, SJ]

Hmmmm... my six would be:

1. Temp

2. Motion

3. Light

4. Noise

5. Window

6. Door

[G+_Steve Taylor]

I'm curious... Particulates? Pet hair? Cat dander? Dust?

[G+_Jason Perry]

Steve Taylor?, the sensor doesn't discriminate, so yes, yes, and yes.

[G+_Steve Taylor]

I like Padre's list. But CO, and/or smoke might be a good idea also.

[G+_Jason Perry]

I am not a fan of a diy CO/smoke sensor. That is a separate system

[G+_Rud Dog]

Will the sensors and the box be close together as I think the distance the sensors from electronics is limited? This was my idea kill for this type of project.

[G+_Jason Perry]

Rud Dog?, the only ones that wouldn't be close are the reed switches for the door and window.

[G+_Rud Dog]

Jason Perry What will be the method for signal travel between Electronics and sensor?

[G+_Jason Perry]

I am planning on scavenging from a few circuits. The first one for proof of concept is this one form instructables. I am in the process of ordering parts, which some will take awhile to get as I am going for cheap to start. I am also planning on ordering the boards from Osh Park. once I have everything working I am looking at a PoE circuit I found.

instructables.com - A credit card sized Ethernet Arduino compatable controller board

[G+_Rud Dog]

This may or may not be the same reason I abandoned my project hell you may have the answer to my problem. The sensors attached to a lot of IOTs have a limited range (I2C) the signal can travel. Maybe I misunderstood what your project direction was to be if disregard my ranting.

[G+_Rud Dog]

Disregard my rant the link explains what you are doing didn't know that board existed, thank you for linking it. Gonna do some reading on it now.

[G+_Jason Perry]

Well I hope one post something positive for you in the hopefully near future

[G+_Jason Perry]

Rud Dog if you look up the PoE daughter board on freetronics they publish the circuit. I want to integrate that with the Ethernet arduino from instructables.

[G+_Rud Dog]

Madness is how I describe it was at that link for over an hour just salivating over the selection. Now want to find a locking mechanism for mounting on my shed door that will recognize me when I approach. Hmm some sort of deadbolt powered by low voltage and ID reader and xmitter.

[G+_Jason Perry]

I have wanted this for a long time

sparkfun.com - Fingerprint Scanner - 5V TTL (GT-511C1R) - SEN-13007 - SparkFun Electronics

[G+_Jason Perry]

If you follow the link to the author you van find projects that build on that board

[G+_Rud Dog]

Jason Perry Great POE project wish I had seen this back when I was learning about POE.

Also followed it to the: sparkfun/Fingerprint_Scanner-TTL

 

This could lead to more fun nice find thank you.

[G+_Jason Perry]

If you find the fingerprint scanner in a round format let me know

[G+_Rud Dog]

Will do.

[G+_David Wiggins]

Something that wasn't mentioned that I noticed, was purpose of the room, and what is being protected.

 

For instance, a server room may need temp/humidity more than CO2 and noise.

 

A bedroom, though, motion and entry vector sensors for when not home seem more important.

 

I tend to look for the worst possible scenario (my nephew gives me a lot of grief about that), then try to protect against that, even when I want to watch all the things.