Having trouble reading voltage data through ADC
1418 Views - Created 20/11/2018
20/11/2018
Posted by:
albertju
Hi i am running the demo_readvoltage.py program on my raspberry pi, but i am unable to read any values when I connect a power supply to it. Any reason why I might not be reading any data? Also, I would like to know the pinout for the ADC Pi.
20/11/2018
Posted by:
andrew
Location:
United Kingdom
Hi
If the demo program is running correctly but only returning 0V then try checking your connections to the ADC inputs and make sure you have a common ground connection between your power supply and the Raspberry Pi.
You can find the pinout and schematic for the ADC Pi on our ADC Pi product page. On the 40-pin GPIO header, the only pins that are needed are 3.3V (pin 1), 5V (pin 2), SDA (pin 3), SCL (pin 5) and GND (pin 6).
If the demo program is running correctly but only returning 0V then try checking your connections to the ADC inputs and make sure you have a common ground connection between your power supply and the Raspberry Pi.
You can find the pinout and schematic for the ADC Pi on our ADC Pi product page. On the 40-pin GPIO header, the only pins that are needed are 3.3V (pin 1), 5V (pin 2), SDA (pin 3), SCL (pin 5) and GND (pin 6).
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.