Backyard Aquaponics
A place to discuss aquaponics

Accordingly 4 GB is enough.

I want to go for sure
I never use memory...and i didn't know how much byte the reading/sensor...

Thanks!

If you are storing data for long periods of time, you should really look at either EEProm memory or Flash memory.
If you just store it in RAM you could lose it all.
Power Fail
Micro Crash etc. etc. etc.
Serial I2C EEproms are probably the most versatile with single byte write and usually 100k+ erase/write endurance.
That is exactly what I use on my temp data logger.

Thinking about it a little more you are probably proposing using a 4GB USB Flash Drive.
If so you can ignore most of what I just wrote

I want to use a 4GB micro SD card...via an SD adapter, and an SD Card Module Slot Socket Reader for Arduino

http://www.ebay.com/itm/280758300478?ss ... 703wt_1185

I just bought a new thumb drive, and when I finally managed to get it out of its adult proof packaging, I discovered it feels like it's made of origami and hope.

That sounds negative, but I secretly love it when tech gets so cheap, they no longer bother with making it roadworthy.

I still remember the days when a flip phone was out of the question because the hinge would be the fail point.

What was the top ica gain?

This is a really cool topic,
I'm also in the process of building an arduino based unit that will upload to my website..

I want it to log greenhouse in temp, out temp, and water temp as well as humidity.

This is also very tempting to integrate
http://www.ebay.com.au/itm/pH-Circuit-S ... 2ebf65f15c

http://www.ebay.com.au/itm/Dissolved-Ox ... 2c66374692

Hi Erbey,

Nice work on the data logger. I have messed around with arduino a bit building motor controllers. I often update variables in my program while it is running via the arduino's serial connection. This can be done by adding a serial read to the code and then typing in the desired command in the serial window which you can open from the script editor.

Not sure if this is an easier method for you to try.

Cheers, D.

buy one of the wireless modules with build in uart and you can send the unit commands remotely as well.

I've got some arduino goodies on my Christmas list with an eye toward integrating it into my AP, primarily logging temperature at first. I've read about add-ons that send data over Twitter and the like. I like the idea of not having to manually pull down logged data, especially as I'm just learning AP and greenhouse management and wouldn't mind geeking out over real-time data and making any needed adjustments to the greenhouse or whatnot. Anyone have experience with real-time data ?

I think you guys have talked me into having a go at this arduino stuff for some temperature and humidity logging.

can anyone in australia point me to the cheapest supplier. i'm after an arduino board, two humidity+temp probes, and an SD Module to start with. I can code a bit in perl, so i'm sure i'll be able to pick up enough C to be able to get those things working.

cheers


edit. seems like I really need one of these.... Does anyone know of any other people who sell them
http://www.adafruit.com/products/243

If your talking about accessing real time data, especially over the net, you could look at setting up a Raspberry Pi ($35) as a web server and then use the cheapest possible arduino (like a mini or a leostick) to sample the data.

You could go all out and monitor and control flow rates on pumps, log temp or even possibly find electronic sensors for Amm/nitrate/nitrite.

All this is moving away from the elegant simplicity the an AP system could be though. I think a few people here might argue against overcomplicating the system but on the other hand, the electronics is part of the fun isn't it?

I dip my toe in electronics every few years, usually as an add-on to whatever hobby is taking up my brain's excess CPU cycles. Is there a simpler way to ping the arduino's memory across wifi (or even bluetooth) than running a tiny linux server?

Using TCP/IP or UDP you can design your own simple protocol to access the data. Or you could have it send the data to a server running on a PC to store the data.

Looks like I could use a bluetooth module and interface with the arduino from a PC or Android phone (I do have an extra that isn't on the cellular network anymore). Let's pile Android app development on the hobby pile. Why not?

http://www.instructables.com/id/Androin ... d-d/#step1

Orcy2010, I'll probably pick up that same data logging shield, as well. I knew I could eventually put this non-micro SD card back to work some day.

Jake, of everything else i've seen, I cant find any other logging shield that looks quite as good (with the RTC and all already attached). I'm on the list for when they come back in stock, so I think i'll grab one asap. Then I just have to add a couple of temp and humidty sensors, and it will do everything I want for nearly no work.