Measuring water quality parameters through a wireless sensor node

Ahmad Abubakr

Prodigy 10 points

Other Parts Discussed in Thread: LMP91200

Hello

I'm struggling to find a way to build a wireless node that could sustain itself from months without changing batteries.

I want to measure TDS (Conductivity), Ph level, and water temperature.

Thanks in advance

over 4 years ago

0 Josh Wyatt over 4 years ago

TI__Guru* 90906 points

Dear Ahmad -

The LMP91200 http://www.ti.com/lit/ds/symlink/lmp91200.pdf is what we offer for the Analog Front End (AFE) to be used with two-electrode pH sensors.

http://www.ti.com/product/LMP91200

For temperature - i am assuming you want a probe form factor, which we do not have, but a probe could be made from many of our temp sensing devices, so please confirm the form factor.

For conductivity, please see this E2E post, which highlights using an LDC1000 devices:

https://e2e.ti.com/support/sensors/f/1023/t/328546

For the radio (+ MCU to drive all this above), TI offers Bluetooth, BLE, sub 1GHz, Wi-Fi and general purpose 2.4GHz radios, found here:

http://www.ti.com/wireless-connectivity/overview.html

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Measuring water quality parameters through a wireless sensor node