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Looking for the schematic of one wire LCD interface

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astroman132003

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i-wire lcd interface

i need the schematic of one wire LCD interface
 

IanP

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1 wire lcd interface

If I understand this issue correctly you would like to build a circuit that converts multipin LCD display into 1-wire control. The easiest solution will be to employ a microcontroller and use its UART RX input to receive data.
An example of this you can find here:

https://www.terra.es/personal8/japus12/stermunit.html
 

bbarney

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Re: LCD interface

here is one from scott edwards
 

banh

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Re: LCD interface

IanP said:
If I understand this issue correctly you would like to build a circuit that converts multipin LCD display into 1-wire control. The easiest solution will be to employ a microcontroller and use its UART RX input to receive data.
An example of this you can find here:

h**p://www.terra.es/personal8/japus12/stermunit.html

the link is forbidden by my school, i cannot access...
dunno whether everyone else can access it?
 

klpang1

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Re: LCD interface

I don't quite understand the meaning of -

[...converts multipin LCD display into 1-wire control. ]

Does it means that we can control a LCD module with just a single pin? I have access the the web site refered to and saw the schematic. It seems to me that all it does is that the io pins is shared between the keypad and LCD module. It still uses 4 data pins to transfer data to the LCD module. And I presume the LCD Enable is use for the sharing purpose.

rgds,
chicken_feet
 

terka

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Re: LCD interface

I want to build a LCVD interface with a 74LS164 shift register..

Someone it have a PIC CCS C routine to control this device???
to change the lcd.c driver file???

I have a asm routine, but i want a C routine...


Thank you to all?
 

extradeath

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LCD interface

The connection can be done by 2-wires for min
By using Shift register and 4-bit mode I'll can sen you the full schecamatic later
 

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