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Protocentral / ProtoCentral_ads1262

https://www.protocentral.com/breakout-boards/1005-protocentral-ads1262-32-bit-precision-adc-breakout-board.html
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Single-Ended mode #4

Open Sumsa opened 7 years ago

Sumsa commented 7 years ago

Hi There,

Do you have any idea how to make this work in Single-Ended mode? i.e measure the voltage difference between input A0 and COM. The documentations says the 1262 should be able to operate in this mode, but I cant figure out how to switch when looking at the example.

Along the same lines, where do I make changes if i want to measure from different pins than AN0 And AN1?

ecaits commented 7 years ago

You need use INPMUX register to set the different analog pin as input.

Sumsa commented 7 years ago

Thank you for pointing me in the right direction. Here is a small guide for people having the same problem.

for single mode operation connect the negative differential pin to ground using a jumper wire.

Change the pins used in line 78 in ads1262.cpp

e.g change the hex value next to INPMUX to a binary number as stated on page 94 in the datasheet. eg ads1262_Reg_Write(INPMUX, B00000001); // will be AIN pin 0 and 1 ads1262_Reg_Write(INPMUX, B01110010); // will be AIN pin 7 and 2

To change the sampling rate to 10Hz where there is the highest db 50/60Hz noise reduction change mode 2 at line 62 to: ads1262_Reg_Write(MODE2, B00000010);