[beagleboard] Re: Same Ole Game, Different Take/Seth

[Mala Dies]

Hello,

I am using a couple different books. I am using the Programming the 
BeagleBone Black from Monk and another book called Evil Genius by Rush. It 
is a similar book on the BBB. I had some odd connections at first. You are 
right. I guess I am learning what I am doing.

Seth

P.S. I lost track of all the info. I have accumulated over the last year. I 
will try to keep better records. If you have any questions, let me know. I 
will look up some items on what I am discussing. I got the readings from 
the BBGW to list Celsius and Fahrenheit near what the house is listing on 
the dial. I am still about 10 degrees off, though.  

On Tuesday, July 11, 2017 at 9:53:07 PM UTC-5, Dennis Lee Bieber wrote:
>
> On Tue, 11 Jul 2017 17:23:17 -0700 (PDT), Mala Dies 
>  declaimed the following: 
>
> >Hello Again Mr. Dennis, 
> > 
> >Seth here. I have done some small time work on what wiring I have 
> >concocted. Here goes: 
> > 
> >TMP36: 
> > 
> >Pin 1 is + Vs and it is connected to P9_34 or GNDA_ADC. 
> > 
> >Pin 2 is Vout and it is connected to P9_40 or AIN1. 
> > 
> >and... 
> > 
> >Pin 3 is GND and it is connected to P9_03 or VDD_3V3. 
> > 
> >Now...I have been wrong before and I am just listening to the info. from 
> >the book. I will do some extra research on this project from the 
>
> Which book? 
>
> [Monk] 
> With the TMP36 oriented |) the top pin is connected to 
> 3.3V, the 
> middle pin is connected to the ADC input, and the bottom pin is connected 
> to ADC GND. 
>
> [Chavan] 
> With the TMP36 oriented (|, the top pin is connected to 
> ADC GND, 
> the middle pin is connected to the ADC input, and the bottom pin is 
> connected to 3.3V 
>
> Doesn't matter what beagle you use... When looking at the flat 
> side of 
> the TMP36, the middle pin goes to the ADC input, the left pin goes to the 
> +V and the right pin goes to the GND. While different beagles may put 
> those 
> items on different sockets, the general description is the same -- GND is 
> ground [0V], +V is positive voltage (the TMP36 can be powered from around 
> 3 
> to 6 volts, as I recall [didn't save the spec sheet]), and the desired 
> signal is the middle. 
> -- 
> Wulfraed Dennis Lee Bieber AF6VN 
> wlf...@ix.netcom.com HTTP://wlfraed.home.netcom.com/ 
>
>

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Re: [beagleboard] Re: Same Ole Game, Different Take/Seth

[Mala Dies]

Hello Sir,

Supposedly, the GNDA_ADC pin on the BBGW makes less noise. This noise would 
create a higher fluctuation of distance from the actual temp. in the 
environment. 

Seth

P.S. Now, the GND to VDD_3V3 had some idea behind it but was not listed in 
the book. I had to put value at 63 degrees Celsius but it was still off by 
about two degrees with the old software and old hook-up. Now, the temp. is 
still off by about 10 degrees in Fahrenheit with the correct hook-up and 
current software.

On Tuesday, July 11, 2017 at 7:40:51 PM UTC-5, RobertCNelson wrote:
>
> On Tue, Jul 11, 2017 at 7:23 PM, Mala Dies  
> wrote: 
> > Hello Again Mr. Dennis, 
> > 
> > Seth here. I have done some small time work on what wiring I have 
> concocted. 
> > Here goes: 
> > 
> > TMP36: 
> > 
> > Pin 1 is + Vs and it is connected to P9_34 or GNDA_ADC. 
> > 
> > Pin 2 is Vout and it is connected to P9_40 or AIN1. 
> > 
> > and... 
> > 
> > Pin 3 is GND and it is connected to P9_03 or VDD_3V3. 
>
> Why are you connecting +Vs to GND, and GND to Vdd? 
>
> Regards, 
>
> -- 
> Robert Nelson 
> https://rcn-ee.com/ 
>

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Re: [beagleboard] Re: Same Ole Game, Different Take/Seth

[Mala Dies]

Hello,

So,

TMP36:

+ Vs is now at VDD_3V3

GND is now at DGND

I did configure the old software to work but this is easier. 

Seth 


On Tuesday, July 11, 2017 at 7:40:51 PM UTC-5, RobertCNelson wrote:
>
> On Tue, Jul 11, 2017 at 7:23 PM, Mala Dies  
> wrote: 
> > Hello Again Mr. Dennis, 
> > 
> > Seth here. I have done some small time work on what wiring I have 
> concocted. 
> > Here goes: 
> > 
> > TMP36: 
> > 
> > Pin 1 is + Vs and it is connected to P9_34 or GNDA_ADC. 
> > 
> > Pin 2 is Vout and it is connected to P9_40 or AIN1. 
> > 
> > and... 
> > 
> > Pin 3 is GND and it is connected to P9_03 or VDD_3V3. 
>
> Why are you connecting +Vs to GND, and GND to Vdd? 
>
> Regards, 
>
> -- 
> Robert Nelson 
> https://rcn-ee.com/ 
>

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Re: [beagleboard] Re: Same Ole Game, Different Take/Seth

[Mala Dies]

Hello,

The instructions on the book said to connect the pins of the TMP36 via 
jumper wires to the BBB/BBGW in that manner. I am using a BBGW instead of 
the BBB or BBBW for this project.

Seth

P.S. Should I have the jumper wires connecting to different pins on the 
BBGW?

On Tuesday, July 11, 2017 at 7:40:51 PM UTC-5, RobertCNelson wrote:
>
> On Tue, Jul 11, 2017 at 7:23 PM, Mala Dies  
> wrote: 
> > Hello Again Mr. Dennis, 
> > 
> > Seth here. I have done some small time work on what wiring I have 
> concocted. 
> > Here goes: 
> > 
> > TMP36: 
> > 
> > Pin 1 is + Vs and it is connected to P9_34 or GNDA_ADC. 
> > 
> > Pin 2 is Vout and it is connected to P9_40 or AIN1. 
> > 
> > and... 
> > 
> > Pin 3 is GND and it is connected to P9_03 or VDD_3V3. 
>
> Why are you connecting +Vs to GND, and GND to Vdd? 
>
> Regards, 
>
> -- 
> Robert Nelson 
> https://rcn-ee.com/ 
>

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Re: [beagleboard] Re: Same Ole Game, Different Take/Seth

[Mala Dies]

Hello Again,

I read the schematic on the book. The book states via photo to wire things 
up this way.

Seth

On Tuesday, July 11, 2017 at 8:03:05 PM UTC-5, Mala Dies wrote:
>
> Hello,
>
> The instructions on the book said to connect the pins of the TMP36 via 
> jumper wires to the BBB/BBGW in that manner. I am using a BBGW instead of 
> the BBB or BBBW for this project.
>
> Seth
>
> P.S. Should I have the jumper wires connecting to different pins on the 
> BBGW?
>
> On Tuesday, July 11, 2017 at 7:40:51 PM UTC-5, RobertCNelson wrote:
>>
>> On Tue, Jul 11, 2017 at 7:23 PM, Mala Dies  wrote: 
>> > Hello Again Mr. Dennis, 
>> > 
>> > Seth here. I have done some small time work on what wiring I have 
>> concocted. 
>> > Here goes: 
>> > 
>> > TMP36: 
>> > 
>> > Pin 1 is + Vs and it is connected to P9_34 or GNDA_ADC. 
>> > 
>> > Pin 2 is Vout and it is connected to P9_40 or AIN1. 
>> > 
>> > and... 
>> > 
>> > Pin 3 is GND and it is connected to P9_03 or VDD_3V3. 
>>
>> Why are you connecting +Vs to GND, and GND to Vdd? 
>>
>> Regards, 
>>
>> -- 
>> Robert Nelson 
>> https://rcn-ee.com/ 
>>
>

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Re: [beagleboard] Re: Same Ole Game, Different Take/Seth

[Robert Nelson]

On Tue, Jul 11, 2017 at 7:23 PM, Mala Dies  wrote:
> Hello Again Mr. Dennis,
>
> Seth here. I have done some small time work on what wiring I have concocted.
> Here goes:
>
> TMP36:
>
> Pin 1 is + Vs and it is connected to P9_34 or GNDA_ADC.
>
> Pin 2 is Vout and it is connected to P9_40 or AIN1.
>
> and...
>
> Pin 3 is GND and it is connected to P9_03 or VDD_3V3.

Why are you connecting +Vs to GND, and GND to Vdd?

Regards,

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

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[beagleboard] Re: Same Ole Game, Different Take/Seth

[Mala Dies]

Hello Again Mr. Dennis,

Seth here. I have done some small time work on what wiring I have 
concocted. Here goes:

TMP36:

Pin 1 is + Vs and it is connected to P9_34 or GNDA_ADC.

Pin 2 is Vout and it is connected to P9_40 or AIN1.

and...

Pin 3 is GND and it is connected to P9_03 or VDD_3V3.

Now...I have been wrong before and I am just listening to the info. from 
the book. I will do some extra research on this project from the 
schematic: 
http://www.analog.com/media/en/technical-documentation/data-sheets/TMP35_36_37.pdf.
 
I got this link from Digi Key. They still sell these TMP36 sensors. 

Seth

P.S. If you get bored, let me know what you think. Oh and I just changed 
the uEnv.txt file in the /boot directory to 
enable=BB-AIN1,BB-GNDA_ADC,VDD_3V3 and then I rebooted the machine. I am 
getting an exact read of the 130 C degrees and 201 F degrees. I think this 
will better suit your needs if you are choosing to still help me out. Thank 
you again, sir. 






On Tuesday, July 11, 2017 at 6:58:24 PM UTC-5, Mala Dies wrote:
>
> Hello Dennis,
>
> Yep...I changed the wiring and changed a uEnv.txt file in the /boot 
> directory. I have the P9_40/AIN1 pin connect now instead of the P9_39/AIN0. 
> When I stated that I changed a file, I changed the file to enable 
> BB-ADC1,BB-ADC2 instead of having it enabled at BB-AIN0, BB-AIN1. 
>
> The software is completely different too. I used this set of software to 
> check the TMP36 just like the older software I used in a post not too long 
> ago.
>
> Seth
>
> P.S. I will work backwards like you are discussing and I will keep trying. 
> I know I should have some pins enabled with my Cape Universal disabled. I 
> am probably way off base but this is what I have done so far. Sorry for not 
> giving every detail. I will wait to hear from you again while attempt to 
> work some magic. 
>
> On Monday, July 10, 2017 at 9:27:41 PM UTC-5, Dennis Lee Bieber wrote:
>>
>> On Mon, 10 Jul 2017 16:10:50 -0700 (PDT), Mala Dies 
>>  declaimed the following: 
>>
>> > 
>> >I have another set of software that I picked up along the way, i.e. 
>> >probably from that book, "Evil Genuis," series from Mr. Rush. Anyway, 
>> here 
>> >goes it. Oh but first, I know people are getting tired of seeing the 
>> same 
>> >ole, same ole. This does not discourage me from posting. 
>> > 
>>
>> What is discouraging is the lack of any attempts to analyze/debug 
>> the 
>> problem... Posting code samples from books, stating an invalid result, 
>> and 
>> that is where the effort seems to end. 
>>
>> >*var b = require('bonescript');* 
>> > 
>> >*var inputPin = "P9_40";* 
>> > 
>> >*getBeagleTemp();* 
>> > 
>> >*function getBeagleTemp() {* 
>> >*var value = b.analogRead("P9_40");* 
>> > 
>> >*var millivolts = value * 1800;* 
>> >*var x = (millivolts - 500)/10;* 
>> >*var z = (x * 9/5) - 32;* 
>> >*setTimeout(getBeagleTemp, 1);* 
>> > 
>> >*console.log("x=" + x + "\tz=" + z);* 
>> >*}* 
>> > 
>>
>> >I am getting temperatures in the Fahrenheit of 201 and in Celsius of 
>> 129. 
>> >This is not my temp. in the house. 
>> > 
>>
>> Again, work the results backwards to figure out the numbers 
>> (again, 
>> ignore Fahrenheit). 
>>
>> x = 129 
>>
>> 129 = (mV - 500) / 10 
>> 1290 = mV - 500 
>> 1790 = mV 
>>
>> {Not important, since it just converts the voltage back to the analogRead 
>> 0..1 range 
>> mV = val * 1800 
>> 1790 = val * 1800 
>> 1790/1800 = val 
>> 0.9944 = val 
>> } 
>>
>> Before, the reported temperature was near -50, now it is near 
>> +130. 
>>
>> -50 is GND (0.0V), +130 is maximum (safe) for BB (1.8V). The 
>> minor 
>> differences could be capacitive coupling and cross-talk on the wiring. 
>>
>> My only logical conclusion is that you have changed the wiring 
>> some, 
>> and are not properly connected to the TMP36, instead somehow being 
>> connected to either the GND or the ADC-Voltage source. 
>> -- 
>> Wulfraed Dennis Lee Bieber AF6VN 
>> wlf...@ix.netcom.comHTTP://wlfraed.home.netcom.com/ 
>>
>>

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[beagleboard] Re: Same Ole Game, Different Take/Seth

[Mala Dies]

Hello Dennis,

Yep...I changed the wiring and changed a uEnv.txt file in the /boot 
directory. I have the P9_40/AIN1 pin connect now instead of the P9_39/AIN0. 
When I stated that I changed a file, I changed the file to enable 
BB-ADC1,BB-ADC2 instead of having it enabled at BB-AIN0, BB-AIN1. 

The software is completely different too. I used this set of software to 
check the TMP36 just like the older software I used in a post not too long 
ago.

Seth

P.S. I will work backwards like you are discussing and I will keep trying. 
I know I should have some pins enabled with my Cape Universal disabled. I 
am probably way off base but this is what I have done so far. Sorry for not 
giving every detail. I will wait to hear from you again while attempt to 
work some magic. 

On Monday, July 10, 2017 at 9:27:41 PM UTC-5, Dennis Lee Bieber wrote:
>
> On Mon, 10 Jul 2017 16:10:50 -0700 (PDT), Mala Dies 
>  declaimed the following: 
>
> > 
> >I have another set of software that I picked up along the way, i.e. 
> >probably from that book, "Evil Genuis," series from Mr. Rush. Anyway, 
> here 
> >goes it. Oh but first, I know people are getting tired of seeing the same 
> >ole, same ole. This does not discourage me from posting. 
> > 
>
> What is discouraging is the lack of any attempts to analyze/debug 
> the 
> problem... Posting code samples from books, stating an invalid result, and 
> that is where the effort seems to end. 
>
> >*var b = require('bonescript');* 
> > 
> >*var inputPin = "P9_40";* 
> > 
> >*getBeagleTemp();* 
> > 
> >*function getBeagleTemp() {* 
> >*var value = b.analogRead("P9_40");* 
> > 
> >*var millivolts = value * 1800;* 
> >*var x = (millivolts - 500)/10;* 
> >*var z = (x * 9/5) - 32;* 
> >*setTimeout(getBeagleTemp, 1);* 
> > 
> >*console.log("x=" + x + "\tz=" + z);* 
> >*}* 
> > 
>
> >I am getting temperatures in the Fahrenheit of 201 and in Celsius of 129. 
> >This is not my temp. in the house. 
> > 
>
> Again, work the results backwards to figure out the numbers 
> (again, 
> ignore Fahrenheit). 
>
> x = 129 
>
> 129 = (mV - 500) / 10 
> 1290 = mV - 500 
> 1790 = mV 
>
> {Not important, since it just converts the voltage back to the analogRead 
> 0..1 range 
> mV = val * 1800 
> 1790 = val * 1800 
> 1790/1800 = val 
> 0.9944 = val 
> } 
>
> Before, the reported temperature was near -50, now it is near 
> +130. 
>
> -50 is GND (0.0V), +130 is maximum (safe) for BB (1.8V). The minor 
> differences could be capacitive coupling and cross-talk on the wiring. 
>
> My only logical conclusion is that you have changed the wiring 
> some, 
> and are not properly connected to the TMP36, instead somehow being 
> connected to either the GND or the ADC-Voltage source. 
> -- 
> Wulfraed Dennis Lee Bieber AF6VN 
> wlf...@ix.netcom.com HTTP://wlfraed.home.netcom.com/ 
>
>

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[beagleboard] RE: Same Ole Game, Different Take/Seth

[Mala Dies]

Hello,

I have another set of software that I picked up along the way, i.e. 
probably from that book, "Evil Genuis," series from Mr. Rush. Anyway, here 
goes it. Oh but first, I know people are getting tired of seeing the same 
ole, same ole. This does not discourage me from posting.

*var b = require('bonescript');*

*var inputPin = "P9_40";*

*getBeagleTemp();*

*function getBeagleTemp() {*
*var value = b.analogRead("P9_40");*

*var millivolts = value * 1800;*
*var x = (millivolts - 500)/10;*
*var z = (x * 9/5) - 32;*
*setTimeout(getBeagleTemp, 1);*

*console.log("x=" + x + "\tz=" + z);*
*}*

Now,

I tried this software some and changed it a bit to suit my needs. As you 
all know, I am not 100% legit in the programming field, i.e. even though I 
try. 

I am getting temperatures in the Fahrenheit of 201 and in Celsius of 129. 
This is not my temp. in the house. 

Seth

P.S. If anyone has any other recommendations, please let me know. Please 
let me know what you think. 

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