Data Logger Shield Maximum input voltage

Adafruit Ethernet, Motor, Proto, Wave, Datalogger, GPS Shields - etc!

Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.
Locked
User avatar
jshep1956
 
Posts: 3
Joined: Fri Jan 11, 2019 3:26 pm

Data Logger Shield Maximum input voltage

Post by jshep1956 »

Hello,
I am interested in using the Data Logger Shield and was wondering what is the maximum channel voltage it could handle as data input? I can't seem to find this information but may be obvious to some already. I need it to handle up to 15 volts ideally in a battery monitoring project.
Thanks in advance,
Jim

User avatar
adafruit_support_bill
 
Posts: 88093
Joined: Sat Feb 07, 2009 10:11 am

Re: Data Logger Shield Maximum input voltage

Post by adafruit_support_bill »

If you are using the analog input pins on your processor, then it will depend on the processor you are using.

In general, 5v processors like the Arduino UNO can tolerate up to 5v on the analog pins. 3.3v processors like the Arduino Zero can tolerate up to 3.3v.

If you want to measure a higher voltage than your processor will tolerate, you can divide it down using a voltage divider: https://en.wikipedia.org/wiki/Voltage_divider

User avatar
millercommamatt
 
Posts: 832
Joined: Tue Jul 31, 2018 4:57 pm

Re: Data Logger Shield Maximum input voltage

Post by millercommamatt »

The shield just provides an SD card, a real time clock, a 3.3 voltage regulator, and a prototyping area. The input limits on the analog in pins are determined by the Arduino board. Those limits are 5 V max input.

Someone else might have a better solution for you but maybe this will meet your needs: https://www.adafruit.com/product/904

User avatar
jshep1956
 
Posts: 3
Joined: Fri Jan 11, 2019 3:26 pm

Re: Data Logger Shield Maximum input voltage

Post by jshep1956 »

adafruit_support_bill wrote:If you are using the analog input pins on your processor, then it will depend on the processor you are using.

In general, 5v processors like the Arduino UNO can tolerate up to 5v on the analog pins. 3.3v processors like the Arduino Zero can tolerate up to 3.3v.

If you want to measure a higher voltage than your processor will tolerate, you can divide it down using a voltage divider: https://en.wikipedia.org/wiki/Voltage_divider
Thank you for the information about the maximum voltage of the Arduino and Voltage Divider suggestion. That is just what I needed.

User avatar
jshep1956
 
Posts: 3
Joined: Fri Jan 11, 2019 3:26 pm

Re: Data Logger Shield Maximum input voltage

Post by jshep1956 »

millercommamatt wrote:The shield just provides an SD card, a real time clock, a 3.3 voltage regulator, and a prototyping area. The input limits on the analog in pins are determined by the Arduino board. Those limits are 5 V max input.

Someone else might have a better solution for you but maybe this will meet your needs: https://www.adafruit.com/product/904

Good to know. Thanks for the information.

Locked
Please be positive and constructive with your questions and comments.

Return to “Arduino Shields from Adafruit”