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1  Using Arduino / Sensors / high resolution compass on: September 19, 2014, 10:15:27 am
Is there a device which I can plug into an arduino that I can use to direction information  down to 0.1 of a degree?

Thanks

Jim
2  Using Arduino / Project Guidance / Re: 24bit ADC +/-10v on: June 10, 2014, 03:39:25 am
Wow, lots of numbers here, I wish I tried harder in school now  smiley-eek

Thanks for all the info guys, I've ordered a pair of these from digikey, I'll come back soon with stupid questions. smiley-mr-green
3  Using Arduino / Project Guidance / Re: 24bit ADC +/-10v on: June 09, 2014, 11:24:52 am
ideally, id like to read each channel (I fancy the 4 channel version) every 1/10th of a second, but 1/100th would be even better. Will the AD7734 do this?
4  Using Arduino / Project Guidance / Re: 24bit ADC +/-10v on: June 09, 2014, 06:29:27 am
Thanks for the info, that ADC looks perfect
5  Using Arduino / Project Guidance / 24bit ADC +/-10v on: June 06, 2014, 07:33:04 am
Hi,

I need to read in a signal to my arduino uno, the signal is a +/- 10v and Ideally I'd like 24bit resolution. Does anyone know of an ADC which can do this? Or how can I get around this problem?

Thanks

Jim
6  Using Arduino / Project Guidance / Re: Servo's or Stepper motors? on: February 26, 2014, 04:29:17 am
thanks for the info guys. I've ordered some 180deg  servo's to have a play with. I'll go and have a search now for servo control.
7  Using Arduino / Project Guidance / Re: Servo's or Stepper motors? on: February 25, 2014, 11:41:45 am
if I used something like this:
http://www.ebay.co.uk/itm/Feetech-360-Degree-Continuous-Rotation-Servo-3kgcm-FS5103R-Arduino-Raspberry-Pi-/321280971134?pt=UK_Computing_Other_Computing_Networking&hash=item4acdd6917e

would it be easy to "zero" to find a start position?
8  Using Arduino / Project Guidance / Re: Servo's or Stepper motors? on: February 25, 2014, 10:36:12 am
Thanks for the info Robin, I guess 180 deg would be enough for me, so I'll have a look for some cheap servo's and have a play
9  Using Arduino / Project Guidance / Servo's or Stepper motors? on: February 25, 2014, 09:33:51 am
I want to create a little project using an uno, into a car dashboard, I would like to have two analogue style gauges for speed and RPM, and an LCD display for temperature, and other information.

First question really is what would you advice I use for the analogue gauges, stepper motors or servo's? I do want to try and keep this project cheap, but if one is better than the other then I am all ears.

Thanks
Jim
10  Using Arduino / Project Guidance / Re: LTC2400 24bit ADC with strain guage on: December 23, 2013, 11:14:26 am
Thanks for getting back to me,
The load cell I'm using is 500kg, I want to be able to read fom 0 - 400kg at every .5kg, Would I have enough resolution?

How would I connect a strain gauge to a ADS1231, is it simple enough?
11  Using Arduino / Project Guidance / Re: LTC2400 24bit ADC with strain guage on: December 20, 2013, 10:35:16 am
is it possible to connect a load cell to a 24bit ADC without amplification?
12  Using Arduino / Project Guidance / LTC2400 24bit ADC with strain guage on: December 17, 2013, 04:53:19 am
Hello,

Has anyone every used one of these devices to read the input from a strain gauge without an amplifier?

http://www.ebay.co.uk/itm/111005456125?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649

I would like to connect one of these device to my uno, and then connect a strain gauge inside my load cell to this. Would I need an amplifier also??

Any help would be magic.

Thanks
Jim
13  Using Arduino / Sensors / Re: Reading 5v analogue sensor on: April 17, 2013, 02:55:46 pm
Thanks Mike, I'll have a read.

For anyone else here is the link
http://www.thebox.myzen.co.uk/Tutorial/De-coupling.html
14  Using Arduino / Sensors / Re: Reading 5v analogue sensor on: April 17, 2013, 02:42:42 pm
Sorry to be lame, but what do you mean by coupling?

Maybe I should start from the beginning, can anyone point me in the direction of a diagram of the minimum components for an arduino where I can read analogue voltages accurately?
15  Using Arduino / Sensors / Re: Reading 5v analogue sensor on: April 17, 2013, 12:49:44 pm
The sensor is a load cell, I've also replicated the problem using a diode between 5v and analogue input 3. When tested with a digital multi meter it shows around 4.2v but stil 1023 on the serial monitor. There is nothing else in my code, the complete code is above.
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