About Us Knowledge Base Community Forum Electronics Toolbox FAQ Shipping & Delivery

Community Forum

Share your projects and post your questions

Search
Register or Sign In
Forum

correct voltage read?

29 Views - Created 7 days ago

7 days ago

Posted by:
kristian

Users Avatar

Hi,

I got my ADC Pi to work last week. It worked fine; Connected it to a 1.5V battery and it read the voltage correctly.

Today it suddenly reads 5.060569390625V when connecting to the same battery.

In the mean time, I have connected it to another source of some 15V. 

Does the ADC Pi need a calibration?

 

regards,

Kristian

7 days ago

Posted by:
andrew

Users Avatar

Location:
United Kingdom

Users Twitter  Users Website  

Hello Kristian

The ADC Pi has a maximum input voltage of 5.06V so connecting it to a 15V source may have damaged the ADC chip making it read any voltage as its maximum value. 

Does it read the same voltage on all 8 channels?  If you only applied 15V to one of the channels then the damage may be contained to one ADC in which case the four channels connected to the other ADC should still work.

AB Electronics UK Tech Support

Note: documents in Portable Document Format (PDF) require Adobe Acrobat Reader 5.0 or higher to view, download Adobe Acrobat Reader or other PDF reading software for your computer or mobile device.