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AvionicsMaster1
- 21st November 2013, 16:01
I'm currently using DT_INT and it works well. I see on the forum where there's a DT_ANALOG. Where can I find a list of all the time saving programs that Darrel puts out? I'd rather find out what's there before I spend time making my code work. If this has been answered before I apologize for wasting your time.

Darrel Taylor
- 21st November 2013, 17:32
http://dt.cambs.net
http://pbpgroup.com
http://support.melabs.com/forum

iw2fvo
- 30th May 2014, 18:21
Good day Darrel,

I2C LCD are now popular since they allow to save pins on the PIC; Those displays are very cheap and they are also used in Arduino enviroment.
I recently have the need to use them since I do not have available spare pins on my PIC board. I am using PIC 18f4523 and the PBP 2.50 B .
I used since many years, the PBP and I found LCDOUT very simple to use and I never had problems at all.
My question and probably the question of many other PBP user is: How to use the I2C LCD based on the PCF8574T in a simple way similar to the LCDOUT ?
Is there any help ?
Thanks
Regards,
Ambrogio
IW2FVO
North Italy

Kmt
- 30th May 2014, 23:25
Hi try this

http://support.melabs.com/threads/986-I2C-PCF8574-20x4-LCD

Kent

iw2fvo
- 31st May 2014, 19:02
Kent,
Thanks for the response.
I do not have the PBP 3.X and so I do not have the ARRAYBYTEwrite on my PBP.
Any additional suggestion ?
Regards,
Ambrogio

iw2fvo
- 31st May 2014, 19:34
Has anyone a program to convert from LCDOUT to I2CLCD ?
Thanks,
Ambrogio

Demon
- 4th June 2014, 02:49
Kent,
Thanks for the response.
I do not have the PBP 3.X and so I do not have the ARRAYBYTEwrite on my PBP.
Any additional suggestion ?
Regards,
Ambrogio

Check PBP 3.0 manual 2.6.4.

ARRAYREAD and ARRAYWRITE is a simplified FOR loop.

Robert

iw2fvo
- 5th June 2014, 08:51
Thanks Robert,
Could You please explain to me how to pass from LCDOUT to I2C lcd control in a simple way ?
I think it is a common problem to all PBP users : The I2C lcd are now very cheap and allow to save Pic pins !
This will help a lot of people.
Regards,
Ambrogio
IW2FVO

Demon
- 5th June 2014, 14:15
(post deleted)

Demon
- 5th June 2014, 14:27
Hi try this

http://support.melabs.com/threads/986-I2C-PCF8574-20x4-LCD

Kent

Just read this, Darrel has already done a routine, and it's all documented.

Just read the PBP section in the manual about ARRAY commands that I mentionned and edit Darrel's routine.

Not much else I can do without getting a LCD for Christmas.

Robert

EarlyBird2
- 5th June 2014, 15:09
Robert

I have done as you said and it looks like an interesting project to me.

'Easy' made me think of something I was told years ago "Anything you understand IS easy but until you do understand it is hard". I know that I am not alone in getting a reward solving hard problems and once the adrenaline rush has gone thinking but its easy.

Richard has already helped me understanding how the I2C command works based on that I think I understand the LCDOUT command, or at least I hope. I am continuing the reading while Ambrogio is waiting for an ArduinoLCD to arrive.

I am thinking of putting one on my Christmas list It would only be a toy as I have no real use for one. I was thinking of justifying the expenditure by calling it an executive toy.

Demon
- 5th June 2014, 18:20
I might get a few myself for father's day. :)

iw2fvo
- 7th June 2014, 14:20
I am still waiting for the LCD to arrive here in Italy !

Let me pose my question in a different and practical mode:
Now I have the following pbp code:

Pv var word
pv= 10000
LCDOUT $fe,$80," pv=", dec pv

What will be the "equivalent " pbp code for writing the same things on an I2C LCD ?

Thanks to everybody for the assistance.
Regards,
Ambrogio