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LDmicro Forum - Parallel LCD

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Parallel LCD (by Teo Zee Von)
Can LDmicro support parallel LCD in 4 bit or 8bit mode? If not, I hope the new version of LDmicro can support.
Mon Jul 27 2009, 03:59:37
(no subject) (by Jonathan Westhues)
LDmicro does not currently support any kind of LCD except serial LCDs, like

http://www.crystalfontz.com/products/index-ser.html
http://matrixorbital.com/

(A serial LCD can just be used with the UART instructions; the only connections necessary are for power, ground, and serial TX.)

It would be possible to add support for HD44780-style parallel character LCDs, probably in four-bit mode. But I have no immediate plans to do so.
Mon Jul 27 2009, 04:59:07
Supporting Parallel lcd (by Ahmad sakr)
Dear Ihor Nehrutsa
Dear Jonathan westhuse
Could you please give support to parallel lcd in ldmicro next release
Thanks for your great support and encouragement.
Regards
Thu Feb 8 2018, 00:59:23
(no subject) (by Ihor Nehrutsa)
Stopwatch3 over serial LCD based on HD44780 controller
https://github.com/LDmicro/LDm...CD-based-on-HD44780-controller
Thu Feb 8 2018, 03:52:38
Also (by Ihor Nehrutsa)
You use some lcd SPI interface board
and the SPI
http://cq.cx/ladder-forum.pl?a...;parent=6951&tt=1517699100
Thu Feb 8 2018, 05:59:03
(no subject) (by Ahmad sakr)
Dear sir
I have lcd 2*16 1602a, I want to use this lcd with avr or arduino.
Waiting for your reply
Best regards
Sat Feb 10 2018, 14:06:45
(no subject) (by Ziggy)
What kind of an interface does 1602a have?
Sat Feb 10 2018, 15:42:34
CLP com LCD paralelo 16x2 4bits (by Tavares)
Veja o topíco que postei (CLP com LCD paralelo 16x2 4bits).É com HD44780.
Sat Feb 10 2018, 16:35:32
(no subject) (by Ahmad sakr)
Dear friends
In the attachment manual of 1602a.
How to use my lcd without max232 circuit?
In arduino ide I can print characters and variables (analog values) after specifying cursor begins. That I want.
Best regards
Sun Feb 11 2018, 04:44:05, download attachment 1602LCD.pdf
(no subject) (by MGP)
To all the people who would like to control a parallel LCD.

LDmicro is as it is now made not suitable to control an LCD.
Even SPI does not meet the requirements because you can not send a variable, you miss the conversion like "formatted string over UART".

Use an uart converter, much more flexible and you only need 2 wires and a 16F628A costs almost nothing and you can use a prototype pcb.
Sun Feb 11 2018, 07:53:39
(no subject) (by Ahmad sakr)
To Ihor Nehrutsa
As Mr MGP said that we can't use parallel lcd without max232 circuit
Is it possible to have parallel lcd in next releases.
Thanks very much
Sun Feb 11 2018, 16:44:11
(no subject) (by MGP)
I don't said that you need a MAX232 circuit, you only have to connect the serial output of the arduino/pic/avr to the input of the serial display.

You can directly connect the TTL signals of both controllers.
Sun Feb 11 2018, 19:02:07
(no subject) (by Tom J.)
I've been looking at HD44780 based LCDs and would love to learn my way around using them for a project.

Is there any reading material of a basic nature out there one could recommend to get me started understanding how the process works?

Thanks, Tom J.
Fri Jun 15 2018, 17:25:28
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