Optrex DMC2059 LCD

C

Chopper

Guest
Hi all

A while back Oatley Elecronics had the Optrex DMC2059 LCD's for sale. (12cm
x 3cm display area). I got some & have just found a use for them.
Unfortunately I haven't had any success with getting them going. I haven't
had any (well many) problems with other types of LCD (16x2 & 40x2).

Has anyone out there who also purchased them got them going? A search of
Google revealed similar units but not the '2059. All other OPTREX units
appear to use the standard LCD initialization etc.

Any help would be apprciated. Thanks

--
Regards

Chopper

<Remove 'Chopper' in Email address>
 
Chopper wrote:
Hi all

A while back Oatley Elecronics had the Optrex DMC2059 LCD's for sale. (12cm
x 3cm display area). I got some & have just found a use for them.
Unfortunately I haven't had any success with getting them going. I haven't
had any (well many) problems with other types of LCD (16x2 & 40x2).

Has anyone out there who also purchased them got them going? A search of
Google revealed similar units but not the '2059. All other OPTREX units
appear to use the standard LCD initialization etc.

Any help would be apprciated. Thanks

Have you found the "LCD faq" on the net yet?, I had a
Click to expand...
batch of character displays that were STN type and needed
about -1.5V on the contrast to make the characters visible.
 
Hi Mark

I found a few people asking the same questions but no answers

Thanks for the suggestion

--
Regards

Chopper

<Remove 'Chopper' in Email address>


"Mark Harriss" <billy@blartco.co.uk> wrote in message
news:42e8bd6f$0$846$61c65585@uq-127creek-reader-03.brisbane.pipenetworks.com.au...
Chopper wrote:
Hi all

A while back Oatley Elecronics had the Optrex DMC2059 LCD's for sale.
(12cm
x 3cm display area). I got some & have just found a use for them.
Unfortunately I haven't had any success with getting them going. I
haven't
had any (well many) problems with other types of LCD (16x2 & 40x2).

Has anyone out there who also purchased them got them going? A search of
Google revealed similar units but not the '2059. All other OPTREX units
appear to use the standard LCD initialization etc.

Any help would be apprciated. Thanks

Have you found the "LCD faq" on the net yet?, I had a
batch of character displays that were STN type and needed
about -1.5V on the contrast to make the characters visible.
Click to expand...
 
It needs a bit of a "power up" routine,
have you been through that?




Chopper <Chopperbplayne@skeylink.net> wrote in message
news:42e8cfea@news1.veridas.net...
Hi Mark

I found a few people asking the same questions but no answers

Thanks for the suggestion

--
Regards

Chopper

<Remove 'Chopper' in Email address>


"Mark Harriss" <billy@blartco.co.uk> wrote in message
news:42e8bd6f$0$846$61c65585@uq-127creek-reader-03.brisbane.pipenetworks.com
..au...
Chopper wrote:
Hi all

A while back Oatley Elecronics had the Optrex DMC2059 LCD's for sale.
(12cm
x 3cm display area). I got some & have just found a use for them.
Unfortunately I haven't had any success with getting them going. I
haven't
had any (well many) problems with other types of LCD (16x2 & 40x2).

Has anyone out there who also purchased them got them going? A search of
Google revealed similar units but not the '2059. All other OPTREX units
appear to use the standard LCD initialization etc.

Any help would be apprciated. Thanks

Have you found the "LCD faq" on the net yet?, I had a
batch of character displays that were STN type and needed
about -1.5V on the contrast to make the characters visible.
Click to expand...
 
Hi Frank

I am using a routine similar to other OPTREX units. Is there anything
specific about this type?


--
Regards

Chopper

<Remove 'Chopper' in Email address>


"Frank" <someonenot@microsoft.com> wrote in message
news:42e92b68$1@clear.net.nz...
It needs a bit of a "power up" routine,
have you been through that?




Chopper <Chopperbplayne@skeylink.net> wrote in message
news:42e8cfea@news1.veridas.net...
Hi Mark

I found a few people asking the same questions but no answers

Thanks for the suggestion

--
Regards

Chopper

Remove 'Chopper' in Email address


"Mark Harriss" <billy@blartco.co.uk> wrote in message

news:42e8bd6f$0$846$61c65585@uq-127creek-reader-03.brisbane.pipenetworks.com
.au...
Chopper wrote:
Hi all

A while back Oatley Elecronics had the Optrex DMC2059 LCD's for sale.
(12cm
x 3cm display area). I got some & have just found a use for them.
Unfortunately I haven't had any success with getting them going. I
haven't
had any (well many) problems with other types of LCD (16x2 & 40x2).

Has anyone out there who also purchased them got them going? A search
of
Google revealed similar units but not the '2059. All other OPTREX
units
appear to use the standard LCD initialization etc.

Any help would be apprciated. Thanks

Have you found the "LCD faq" on the net yet?, I had a
batch of character displays that were STN type and needed
about -1.5V on the contrast to make the characters visible.
Click to expand...
 
The best way I can answer your question, is the LCD controller or driver on
this URL below?
http://www.eio.com/datashet.htm




Chopper <Chopperbplayne@skeylink.net> wrote in message
news:42e94016$1@news1.veridas.net...
Hi Frank

I am using a routine similar to other OPTREX units. Is there anything
specific about this type?


--
Regards

Chopper

<Remove 'Chopper' in Email address>


"Frank" <someonenot@microsoft.com> wrote in message
news:42e92b68$1@clear.net.nz...
It needs a bit of a "power up" routine,
have you been through that?




Chopper <Chopperbplayne@skeylink.net> wrote in message
news:42e8cfea@news1.veridas.net...
Hi Mark

I found a few people asking the same questions but no answers

Thanks for the suggestion

--
Regards

Chopper

Remove 'Chopper' in Email address


"Mark Harriss" <billy@blartco.co.uk> wrote in message

news:42e8bd6f$0$846$61c65585@uq-127creek-reader-03.brisbane.pipenetworks.com
.au...
Chopper wrote:
Hi all

A while back Oatley Elecronics had the Optrex DMC2059 LCD's for sale.
(12cm
x 3cm display area). I got some & have just found a use for them.
Unfortunately I haven't had any success with getting them going. I
haven't
had any (well many) problems with other types of LCD (16x2 & 40x2).

Has anyone out there who also purchased them got them going? A search
of
Google revealed similar units but not the '2059. All other OPTREX
units
appear to use the standard LCD initialization etc.

Any help would be apprciated. Thanks

Have you found the "LCD faq" on the net yet?, I had a
batch of character displays that were STN type and needed
about -1.5V on the contrast to make the characters visible.
Click to expand...
 
Hi all

Success. It required about -4V on the contrast pin. (pin3)

Thanks all for your help.

It worked for 2 displays.

All I need now is a convenient -4V

--
Regards

Chopper

<Remove 'Chopper' in Email address>


"Chopper" <Chopperbplayne@skeylink.net> wrote in message
news:42e8baad@news1.veridas.net...
Hi all

A while back Oatley Elecronics had the Optrex DMC2059 LCD's for sale.
(12cm
x 3cm display area). I got some & have just found a use for them.
Unfortunately I haven't had any success with getting them going. I haven't
had any (well many) problems with other types of LCD (16x2 & 40x2).

Has anyone out there who also purchased them got them going? A search of
Google revealed similar units but not the '2059. All other OPTREX units
appear to use the standard LCD initialization etc.

Any help would be apprciated. Thanks

--
Regards

Chopper

Remove 'Chopper' in Email address
Click to expand...
 
Chopper wrote:
Hi all

Success. It required about -4V on the contrast pin. (pin3)

Thanks all for your help.

It worked for 2 displays.

All I need now is a convenient -4V
Click to expand...

I was able to suck mine off a MAX232 ic I already had
on my board for the RS232 interface: it makes -9V.

Regards
Mark
 
I was able to suck mine off a MAX232 ic I already had
on my board for the RS232 interface: it makes -9V.
Click to expand...
Good thinking.

I also found that it needed about 15V @ 60 mA for the backlighting


--
Regards

Chopper

<Remove 'Chopper' in Email address>


"Mark Harriss" <billy@blartco.co.uk> wrote in message
news:42ea138a$0$866$61c65585@uq-127creek-reader-03.brisbane.pipenetworks.com.au...
Chopper wrote:
Hi all

Success. It required about -4V on the contrast pin. (pin3)

Thanks all for your help.

It worked for 2 displays.

All I need now is a convenient -4V



I was able to suck mine off a MAX232 ic I already had
on my board for the RS232 interface: it makes -9V.

Regards
Mark
Click to expand...
 
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