LK162-12-WB through ethernet i/o

legendsngray · Post by **legendsngray** » Wed Jul 19, 2006 11:53 am

I recently ordered a LK162-12-WB lcd and im having trouble displaying the correct char's. Im using a ethernet i/o to send it data which supports ttl votages so i put the jumpers on ttl but i dont know a lot about rs232 ive been looking on rs232 info websites but i want to make sure this is correct.

to send this display ascii "A" with rs232 with ttl voltage i would use
one start bit and two stop bits correct?

1=ttl low 0=ttl high right?

it should look like this right?

start info stop
0 01000001 11

or like this?
start info parity stop
0 1000001 0 11

any help will be apreciated

rs232 site i was lookin at
http://www.arcelect.com/rs232.htm
ether i/o im using
http://www.elexol.com/Downloads/EtherIO24UM12.pdf

Raquel · Post by **Raquel** » Wed Jul 19, 2006 4:20 pm

Hi legendsngray,

'A' sent in serial (TTL) is:

0 10000010 1 (the second one you had)

legendsngray · Post by **legendsngray** » Wed Jul 19, 2006 6:09 pm

thanks man ill try that

legendsngray · Post by **legendsngray** » Wed Jul 19, 2006 9:42 pm

that didnt work man but it may be something with the speed

the i/o controler can do 500,000 changes per second so what baud would that be?

all its doing is showing one of the factory custom char's now

Raquel · Post by **Raquel** » Thu Jul 20, 2006 12:40 pm

Hi legendsngray,

The default baud rate is 19200. To make sure that your module is at 19200,
you can put a manual override jump: please see page 11, Figure 17 of

http://www.matrixorbital.ca/manuals/LK_ ... rev_30.pdf

Btw, I am a gal.

sxiros · Post by **sxiros** » Fri Jul 21, 2006 7:31 pm

hehe, i was wondering when she is gona make it clear that she is not a Man

legendsngray · Post by **legendsngray** » Wed Jul 26, 2006 1:55 pm

so "darlin" (<--from tx so no g) if i was using a I2C bus i would need to have the

controller

then a resister to 5v power for the data wire as well as a a resister to 5v power for the clock wire

then multiple lcds

then a resister to 5v power for the data wire as well as a a resister to 5v power for the clock wire

correct?

Raquel · Post by **Raquel** » Wed Jul 26, 2006 3:35 pm

Hi legendsngray,

Yes, if you will be using I2C for communication with the displays, you need to put pull-up resistors on the SCL and SDA lines. You need to put only 1 pair of these resistors, not for each module that you will be connecting.

legendsngray · Post by **legendsngray** » Wed Jul 26, 2006 8:59 pm

but one pair on each end of the bus right?

Raquel · Post by **Raquel** » Thu Jul 27, 2006 8:03 am

Hi,

One pair of resistors for the whole bus; although there are pads for pull up resistors on the module, it is best to put them with the host microcontroller.

legendsngray · Post by **legendsngray** » Thu Jul 27, 2006 2:18 pm

ok thanks

legendsngray · Post by **legendsngray** » Sat Sep 16, 2006 2:57 pm

YAY got it workin!!

question though:
how long would a large order of about 55 of these display's take to get processed?

maybe alittle while before the order is placed but need a time table

Raquel · Post by **Raquel** » Wed Sep 20, 2006 10:33 am

Hi,

Sorry took long to answer your question. I will forward it to Sales.
Thank you for your interest.

Nick · Post by **Nick** » Wed Sep 20, 2006 10:37 am

legendsngray,

Thanks for your interest in Matrix Orbital. Please contact me directly by email for pricing, and lead times at nhesson@matrixorbital.ca

I look forward to hearing from you.

Regards,
Nick