On 2020-02-27, Gregg Somes 
wrote:
> Hi, I am trying to use a  2 lead thermistror (not a temp/humidity sensor)
with
> RPi 3B+.  Is it possible to wire this without a breadboad?
>
> I cannot find any instructibles or any rpi python code examples anywhere. 
What
> I did so far is connect the ground to one lead, vcc to the other lead using a
Y
> union and put an inline 1-K ohm rewsitor to a third lead as signal [GPIO 23).
> Is there any code magic that can read the digital signal and convert it to
> tempature?

The setup you describe provides a variable analog voltage output. Non of
the raspberry pi have the capability to directly read an analog voltage,
you need an add-on Analog-to-Digital-Converter (ADC) either as a "hat",
breakout board, or chip in a breadboard.

Googling

  raspberry pi using a thermistor to measure temperature

gave a few hits such as ...

https://www.hackster.io/ahmartareen/iot-temperature-sensor-with-raspberry-pi-2-
and-thermistor-7e12db

https://www.instructables.com/id/Raspberry-Pi-Temperature-Sensor/

Happy reading.

Jim

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