On Thu, Jun 29, 2017 at 7:46 PM, Mala Dies <[email protected]> wrote:

>     var b = require('bonescript');
>
>     function readTemp() {
>         b.analogRead('P9_39', displayTemp);
>     }
>
>     function displayTemp(reading) {
>         var millivolts = reading.value * 1800;
>         var tempC = (millivolts - 500) / 10;
>         var tempF = (tempC * 9/5) + 32
>         console.log("TempC = " + tempC + "\t Temp F = " + tempF);
>     }
>
>     setInterval(readTemp, 100000);
>
> Okay...
>
> This is my software from "Programming the BeagleBone Black" in the
> "hardware interfacing" section. I am messing with a TMP36 sensor for analog
> temp. reads.
>
> The issue is this:
>
> I keep getting a similar read for my C and F reads. I should be able to
> get the F read but unfortunately, I get the same as the C read.
>
> Seth
>
>
> <https://lh3.googleusercontent.com/-6uATaSztQgs/WVWfRwRFJNI/AAAAAAAAJy0/i2WaNX-KV9QkFnW1PE958ZyFCugDxQeaACLcBGAs/s1600/forBBBfiles.JPG>
> P.S. Try your TMP36 sensor and this software and get back to me. I would
> love to know about the value(s) I am creating and why they are returning
> the listed read(s). Oh and here is a photo. See!
>


You must live near the equator... ;)

-40F == -40C

This is something norther folk in America & Canada run into every once in
awhile in January...

Regards,

-- 
Robert Nelson
https://rcn-ee.com/

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