Pages: [1]   Go Down
Author Topic: Want to ask opinion on using Arduino with multiple inputs  (Read 493 times)
0 Members and 1 Guest are viewing this topic.
Offline Offline
Newbie
*
Karma: 0
Posts: 11
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Hi,

I am new to Arduino, and this is my first time in learning it (yeah i know i'm a bit outdated smiley-red). My question is, is there any ways of making my own circuit board (not using any completed boards in the market by Arduino) with requirement of taking many data inputs from electrical and meteorological parameters? There are 4 sensors that will be going to use in electrical part while for meteorological part, it is having 3 sensors. And those sensors are used for 1 set of system and for the whole project I will be having more than 1 set of the system (let say 13 sets). I am thinking to use more than 1 of ATMEGA328, but still not decided yet on how to do it. Any suggestion and idea from you guys? Thank you in advance!
« Last Edit: April 08, 2013, 02:05:40 am by shoulder202 » Logged

Global Moderator
Offline Offline
Brattain Member
*****
Karma: 474
Posts: 18696
Lua rocks!
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

Welcome to the forum, and I hope your experiences with Arduino are as happy as mine have been! :-)

The Atmega328 is pretty powerful, but you need to be a bit more specific about "sensors". Are they analog, digital, or what?
Logged

Valencia, Spain
Offline Offline
Faraday Member
**
Karma: 144
Posts: 5378
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

You can make your own board, sure.

If you use an ATMega328P it will have exactly the same inputs/outputs as a standard Arduino. No more, no less.
Logged

No, I don't answer questions sent in private messages (but I do accept thank-you notes...)

Offline Offline
Newbie
*
Karma: 0
Posts: 11
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Welcome to the forum, and I hope your experiences with Arduino are as happy as mine have been! :-)

The Atmega328 is pretty powerful, but you need to be a bit more specific about "sensors". Are they analog, digital, or what?

All sensors are analog. I forgot to mention that I will be using SD card for storing data purpose. Thank you in advance for your response  smiley
Logged

Offline Offline
Newbie
*
Karma: 0
Posts: 11
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

You can make your own board, sure.

If you use an ATMega328P it will have exactly the same inputs/outputs as a standard Arduino. No more, no less.


That is why I am thinking to use more than 1 ATMega328. But still not decided yet on how to maximize the I/O channels for all sensors.
Logged

Global Moderator
Offline Offline
Brattain Member
*****
Karma: 474
Posts: 18696
Lua rocks!
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

You can get analog multiplexer chips. For weather data you won't need thousands of measurements a second.

http://www.gammon.com.au/forum/?id=11976
Logged

Offline Offline
Newbie
*
Karma: 0
Posts: 11
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

You can get analog multiplexer chips. For weather data you won't need thousands of measurements a second.

http://www.gammon.com.au/forum/?id=11976

Thank you for your reply! smiley
Logged

Valencia, Spain
Offline Offline
Faraday Member
**
Karma: 144
Posts: 5378
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

A chip like this will let you connect 8 analog devices to a single Arduino pin:

http://www.ti.com/lit/ds/scls464/scls464.pdf

(with three digital pins to select the source)
Logged

No, I don't answer questions sent in private messages (but I do accept thank-you notes...)

Global Moderator
Boston area, metrowest
Offline Offline
Brattain Member
*****
Karma: 525
Posts: 26570
Author of "Arduino for Teens". Available for Design & Build services. Now with Unlimited Eagle board sizes!
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

Or if you want more resolution, then external ADC, such as MCP3208, 8 channels of 12 bit inputs, accessed via SPI.
Logged

Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

Pages: [1]   Go Up
Jump to: