Pages: [1]   Go Down
Author Topic: An Arduino digital scale  (Read 1929 times)
0 Members and 1 Guest are viewing this topic.
0
Offline Offline
Newbie
*
Karma: 0
Posts: 19
Arduino rocks
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Hey fellas, I was impressed with an experiment we did at lab using strain gauges and thought I might build my own scale using an Arduino and a strain gauge attached to some type of beam. Basically like all the electronic scales are made, just at home. I'd need to do some more reading on the type of hardware that is used in a strain gauge meter, but do you guys think that an Arduino ATMega 328 (using serial port) has enough hardware on it to measure resistance very accurately? Just throwing this out here, not 100% sure if will do this.  smiley-wink
Logged

0
Offline Offline
Faraday Member
**
Karma: 23
Posts: 3470
20 LEDs are enough
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

Depends on what exactly you mean with "very accurately" and if you are willing to add some external components. If you are already in an lab environment, then maybe you are alrady with the notion of datasheets. That's the place to look:

http://www.atmel.com/dyn/products/product_card.asp?PN=ATmega328P

Cheers, Udo
Logged

Check out my experiments http://blog.blinkenlight.net

0
Offline Offline
Sr. Member
****
Karma: 0
Posts: 388
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

There is a project exactly like this one at http://www.nerdkits.com/videos/weighscale/.

The NerdKits don't use the Arduino style of software, but it shows that even a lowly Atmega168 is enough of a processor to use in a project like this.
Logged

0
Offline Offline
Newbie
*
Karma: 0
Posts: 19
Arduino rocks
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Thanks for the replies guys. Looks like someone beat me to it already. smiley
Logged

Pages: [1]   Go Up
Jump to: