nodeLynk device selection for 3-wire pressure transducer

krombopulos · April 29, 2020, 8:07pm

Hello,
Noob alert, please assume I know nothing.

I need advice on selecting a nodeLynk device to connect (preferably 2) 3-wire pressure transducer . I see the ADC121C021 1-Channel and assume that it should work. As I would like to connect a second one to the same board I looked at the MCP3428 4-Channel but as I do not see a ground terminal I am unsure if this will work.

Thanks for any help and sorry if the links don’t render properly as I don’t see a preview button and this is my first post here.

Bhaskar · April 30, 2020, 2:04am

Hi,
Yes, ACC121 will work with the pressure sensor.

The sensor has 3 wires

5V
Gnd
Signal

Thanks

krombopulos · April 30, 2020, 2:51am

Hello Bhaskar,

Thank you for replying.

Would the following also be acceptable as they appear to have grounds?

AD7999 4-Channel
ADS7830 8-Channel
The ADS1115 16-Bit 4-Channel doesn’t have a wiring diagram and I can’t tell from the photos if there is a ground terminal.

Thank you again for your help.

Bhaskar · April 30, 2020, 3:13am

Hi,
Yes, all the above mentioned ADC will work with the pressure sensor.

Thanks

krombopulos · April 30, 2020, 3:21am

Thanks have a good night.