Hi all,
I'm working on a project with an Arduino board and 8 sensors
All these infos will have to be available on a IoT platform like Pachube, and send locally by WiFi
= What are the Arduino components you will use ?
Many thanks for your help !
Nicolas
what sensors?
8 differents, I have send you by PM the exact list !
If you're going to use wifi, a wifi shield would be handy.
If you're going to use wifi, a wifi shield would be handy.
Which, of course, rules this out as a beginner project.
I've got a RN XV WiFi board already
List of sensors :
MICS-2710
http://www.e2v.com/e2v/assets/File/sensors_datasheets/metal_oxide/MICS-2710.pdf
MQ7
http://www.cooking-hacks.com/skin/frontend/default/cooking/pdf/MQ-7.pdf
GP2Y1010AU0F Dust Sensor
MQ135
http://www.cooking-hacks.com/skin/frontend/default/cooking/pdf/MQ-135.pdf
MiCS-5121
http://www.e2v.com/e2v/assets/File/sensors_datasheets/metal_oxide/MICS-5121.pdf
Temperature
http://datasheets.maxim-ic.com/en/ds/DS18B20.pdf
O3
http://www.e2v.com/e2v/assets/File/sensors_datasheets/metal_oxide/MICS-2610.pdf
Sound
http://www.knowles.com/search/prods_pdf/MD9745APZ-F.pdf
and I found this I/O extension board with a slot for a XBEE board
My RN XV is dedicated to replace the XBEE (vendor infos) , I think it'll work with it
http://www.elecfreaks.com/store/freaduino-sensor-shield-v10-with-xbee-shield-p-296.html
List of sensors :
Looks like a grab bag of sensors. What, exactly, do you plan to do that uses both a gas sensor and a microphone?
Measure the efficacy of fart gags?
well, it's complex project, with multiples targets.. This list is just to show that I have to aggregate many differents feeds and I have to well manage all , for the software side and the hardware side !
OK, I'll try to answer your original question.
Without having checked each sensor you posted, I will just assume that they are all analog.
The Uno has 6 analogue inputs, so that wont work (except if you multiplex them, but lets not go there.)
The Mega has 16 inputs, so that should work for you.
I would chose XBee over wifi. You can use XBee to connect your project to a computer, and then use the computers wifi. Is probably simpler.
Just wondering what type of project uses all those sensors and is portable... 
If you use XBee I would look into the Fio. It can be programmed over XBee and it has 8 analog inputs.
Anyway
My 2c.
cheers
p.
I need absolutly WiFi because it's a home project, and need to be connected to Internet through the ISP Box, no XBEE available...
What do you thing of using I/O extended board on an Uno + RnXV ?
why don't you hook up some old laptop or computer to your ISP, and have the Xbee connect to that?
just saying, its a lot easier.
the I/O board you posted will not solve the issue that you do not have enough connections.
p.