Reading from the serial using a LTC2400 24 bit ADC

Here is exactly what I'm doing. I'm using a load cell to weigh items which is connected to an INA125p op amp. I needed a higher precision so I got a LTC2400 24 bit ADC and am reading the voltage output into the Arduino UNO.

http://www.ebay.com/itm/LTC2400-24bit-analog-to-digital-converter-ADC-module-temp-sensor-SPI-AVR-arduino-/111005456125

That's the exact ADC I'm using. It says in the documentation that it sends the signal to UART TX. I can't for the life of me (I suck at programming) figure out how to actually read the voltage. Previously I was using A0 to read in the voltage and that worked just fine.

If you need the code I'm currently using or more information I can provide that. All I need it to know how exactly to read the voltage going into the Arduino. I've googled this for a while and anything I'm trying doesn't work. Any ideas? Sorry if this is a stupid question or I am posting in the wrong part of the forum.

Thanks!!

Hello svartgeit

According to the listing you linked to, the module connects to the Arduino using the SPI bus. There is a link in the listing description to download a user manual (which has the hardware connections) and a sample sketch.

Regards

Ray

Oh yeah, I think I remember that. The manual mentioned the data being sent to UART TX. I know the sample sketch is specific to the project they refer to. I guess I'm wondering if I was sending my signal to analog 0 and now am trying to send it to the SPI bus, how can I modify that code to just read the voltage? I have a steep learning curve I think! Should I be reading more about the SPI bus?

Thanks for the reply!

http://interface.khm.de/index.php/lab/experiments/connect-a-ltc2400-high-precision-24-bit-analog-to-digital-converter/

Hi,

Linear Technology supplys code for many Components . The development Board they support is called Linduino and is close to the Arduino.

http://www.linear.com/product/LTC2400#code

i found a lot of learning stuff in the LTSKetchbook.

regards,

RayWB