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Parallel Port

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fvozzi

Parallel Port

Hi,

I need to access to the Parallel Port in order to use an old Analog/Digital board to sense temperature in a micro brewery. Is anyone using any package to do this?

I'm using Pharo 6 on Windows.

Thanks in advance,

Facundo

Ben Coman

Re: Parallel Port

The only two historical references I see on forum.world.st are from 2006 & 2010.

http://forum.world.st/parallel-port-access-on-Linux-td46506.html

http://forum.world.st/Physical-Etoys-released-td1574259.html

and they have some link rot.

I'd guess your best approach would be to get something working in pure C,

and then provide functions that Pharo can call via FFI.

Alternatively, from personal experience when I used to hoard such old parts, it may be

economic use of your time to throw the old board away, and use a modern microcontroller.

What you learn could facilitate more opportunities, and this stuff just keeps getting cheaper,

while parallel ports get more expensive while knowledge of them keeps getting less relevant.

Maybe a $20 ESP32 with 18 ADC channels + MQTT

https://www.sparkfun.com/products/13907

http://wiki.jackslab.org/ESP32_Onchip_Sensor

http://www.instructables.com/id/Power-and-Temperature-Data-Logger-With-ESP32-and-A/

https://github.com/tuanpmt/esp32-mqtt

http://forum.world.st/MQTT-for-Squeak-td4919880.html#a4920629

http://forum.world.st/MQTT-for-Pharo-td4927759.html#a4928045

https://developer.ibm.com/recipes/tutorials/connect-an-esp32-to-the-watson-iot-platform/

Or use a Raspberry Pi...

https://core-electronics.com.au/tutorials/temperature-sensing-with-raspberry_pi.html

that can run Pharo directly, but I'm not sure what access to pins is currently available.

Again you could go the FFI route, or someone else might advise.

cheers -ben

On Sat, Jun 10, 2017 at 8:57 AM, Facundo Vozzi <[hidden email]> wrote:

Hi,
I need to access to the Parallel Port in order to use an old Analog/Digital board to sense temperature in a micro brewery. Is anyone using any package to do this?

I'm using Pharo 6 on Windows.

Thanks in advance,
Facundo

Stephane Ducasse-3

Re: Parallel Port

In reply to this post by fvozzi

I have forwarded your email to olivier Auverlot because he was
fighting to get Arduino working and I remember there were something
related.

On Sat, Jun 10, 2017 at 2:57 AM, Facundo Vozzi <[hidden email]> wrote:
> Hi,
> I need to access to the Parallel Port in order to use an old Analog/Digital
> board to sense temperature in a micro brewery. Is anyone using any package
> to do this?
>
> I'm using Pharo 6 on Windows.
>
> Thanks in advance,
> Facundo

fvozzi

Re: Parallel Port

In reply to this post by Ben Coman

Hi Ben,

I found IOST http://www.smalltalking.net/Goodies/Squeak/ to use io.dll, I think that it's fine for me. I'll try it on Pharo.

I want to do this on a computer (and not with arduino for example) because my idea is to do a complete software to manage the brewing process on my little brewery and sense the temperature is just de beginning.

Thanks for your answer.

Facundo

On Fri, Jun 9, 2017 at 11:03 PM, Ben Coman <[hidden email]> wrote:

The only two historical references I see on forum.world.st are from 2006 & 2010.
http://forum.world.st/parallel-port-access-on-Linux-td46506.html
http://forum.world.st/Physical-Etoys-released-td1574259.html
and they have some link rot.

I'd guess your best approach would be to get something working in pure C,
and then provide functions that Pharo can call via FFI.

Alternatively, from personal experience when I used to hoard such old parts, it may be
economic use of your time to throw the old board away, and use a modern microcontroller.
What you learn could facilitate more opportunities, and this stuff just keeps getting cheaper,
while parallel ports get more expensive while knowledge of them keeps getting less relevant.

Maybe a $20 ESP32 with 18 ADC channels + MQTT
https://www.sparkfun.com/products/13907
http://wiki.jackslab.org/ESP32_Onchip_Sensor
http://www.instructables.com/id/Power-and-Temperature-Data-Logger-With-ESP32-and-A/
https://github.com/tuanpmt/esp32-mqtt

http://forum.world.st/MQTT-for-Squeak-td4919880.html#a4920629
http://forum.world.st/MQTT-for-Pharo-td4927759.html#a4928045
https://developer.ibm.com/recipes/tutorials/connect-an-esp32-to-the-watson-iot-platform/

Or use a Raspberry Pi...
https://core-electronics.com.au/tutorials/temperature-sensing-with-raspberry_pi.html
that can run Pharo directly, but I'm not sure what access to pins is currently available.
Again you could go the FFI route, or someone else might advise.

cheers -ben

On Sat, Jun 10, 2017 at 8:57 AM, Facundo Vozzi <[hidden email]> wrote:
Hi,
I need to access to the Parallel Port in order to use an old Analog/Digital board to sense temperature in a micro brewery. Is anyone using any package to do this?

I'm using Pharo 6 on Windows.

Thanks in advance,
Facundo

Olivier Auverlot

Re: Parallel Port

In reply to this post by Stephane Ducasse-3

Hi,

Sorry, I can't help. It's not the same problem as us. We work with the serial port to communicate with Arduino.

Best regards

Olivier :)

2017-06-10 20:38 GMT+02:00 Stephane Ducasse <[hidden email]>:

I have forwarded your email to olivier Auverlot because he was
fighting to get Arduino working and I remember there were something
related.

On Sat, Jun 10, 2017 at 2:57 AM, Facundo Vozzi <[hidden email]> wrote:
> Hi,
> I need to access to the Parallel Port in order to use an old Analog/Digital
> board to sense temperature in a micro brewery. Is anyone using any package
> to do this?
>
> I'm using Pharo 6 on Windows.
>
> Thanks in advance,
> Facundo