serial LCD connect to RS232 schema

Development Boards MicroMod
1

Hello,

I have a LDC indicator

http://www.sparkfun.com/commerce/produc … cts_id=461

Is it possible to connect this lcd to RS232 port (com port)

If yes maybe somebody have schema?

I have found schema for printer port but i need via com port.

Regards,

Pranas

2

to connect the LCD’s TTL (logic level) to an RS232 port such as on a PC, you’ll need a level shifter. You can purchase one ready-made and connect it up. There are such boards for sale on this website. Search for “RS232 shifter”

pay attention to the logic level inversions - data polarity.

3

I have found some solution:

http://www.beyondlogic.org/serial/serial3.htm

But there is problem to buy CDP6402C

Regards,

Pranas

4

here is one of the two I see for sale at SparkFun

http://www.sparkfun.com/commerce/produc … cts_id=133