Oh and my print out was 0.057xxxx.
Seth
On Thursday, June 29, 2017 at 10:04:01 PM UTC-5, Mala Dies wrote:
>
> Hello,
>
> I used cosole.log to print out the name and value of reading.value.
>
> Seth
>
> On Thursday, June 29, 2017 at 8:50:44 PM UTC-5, Jason Kridner wrote:
>>
>>
>>
>> On Jun 29, 2017, at 9:21 PM, Mala Dies <fun...@gmail.com> wrote:
>>
>> Hello Rob,
>>
>> Seth here. I am located in the states. There is a big fault and I am not
>> clued in, obviously. How is F == C? I figured that there would be a part to
>> the software, the section that displays the difference, that tells me/you
>> the C and F reads.
>>
>> Seth
>>
>> P.S. I am in about an 80 degree temp. right now. So, do I need to replace
>> "reading.value" with an actual numerical value? I will keep trying.
>>
>>
>> Try printing the reading.value. I expect you have a wiring issue. Double
>> check it is connected to P9.39.
>>
>>
>> On Thursday, June 29, 2017 at 8:06:01 PM UTC-5, RobertCNelson wrote:
>>>
>>>
>>>
>>> On Thu, Jun 29, 2017 at 7:46 PM, Mala Dies <fun...@gmail.com> 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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