How to change the prescaler of a external ADC shield.

Projects Programming
1

I'm using an ADC shield attached with Arduino Uno to increase the precision. The link is below.

However, the sample rate is not high enough so I want to change the prescaler to increase the sample rate. I just can't find any way to change the prescaler of the external ADC. Is it possible to do that?

Thank you!

2

Icespring:
...I want to change the prescaler...

The word "prescaler" does not appear in the user manual, the datasheet, nor that webpage.

What leads you to believe that shield has support for a "prescaler"?

3

The link also shows the ADC used on the boards - might be worth a look at the manufactures data sheet .

Also why do you need such high speed and precision - you could be producing a lot of data that the Arduino can’t handle. There may be another way ; what is the project ?

4

hammy:
The link also shows the ADC used on the boards - might be worth a look at the manufactures data sheet .

Also why do you need such high speed and precision - you could be producing a lot of data that the Arduino can’t handle. There may be another way ; what is the project ?

Hi Hammy!

Thanks for the reply! Actually, I want to gather the manufacturing data (especially the acoustic data is up to more than 100Hz) using a small board. Now I change an ADC that can have higher speed, but the limitation comes to that the baud rate of Arduino is not high enough to transmit so many data. I think you are right that the Arduino might not handle this. Is there any board can transmit such a huge number of data to my computer?

Thanks!

5

Hi!

I think you are right because I also can't find any information about it. The reason leads me to ask this is because the ADC inside the Arduino can change the prescaler to increase the speed. So I am wondering if there is any way to do with the external ADC.