Timeline for Understanding ADC/Sensor Voltage Conversion to Integer Output
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 20, 2017 at 17:31 | comment | added | nate | Yes to the input and reference voltages. I will check your other comments and return with more info. | |
| Mar 20, 2017 at 5:41 | comment | added | AngeloQ | So you are measuring 2.58V on the X, Y, and Z ADC input pins when at rest? And you see 4.095V on the Vref pin? Are the grounds connected well, i.e. is there a voltage difference between ground pins? If you tie a fixed voltage, e.g. from a pot or resistor divider off the reference voltage, do you get a more accurate reading? Do you have any filtering on the input? If not you could try an RC filter. Maybe there is some rectification going on somewhere in the ADC when sampling. | |
| Mar 20, 2017 at 0:52 | history | edited | nate | CC BY-SA 3.0 | added 2 characters in body |
| Mar 20, 2017 at 0:45 | history | asked | nate | CC BY-SA 3.0 |