Small LCD pinout...Wayton M.I.T.

edro13

New member
Here is an LCD I got off a friend for $5. It doesn't have the pinout, and was wondering if someone might recognize it, or if it just a generic general pinout. I see the 1-16 pins up top, then the 2 other pins on the left side. Could someone help me out?




Thanks,
Ed
Looking for additional LCD resources? Check out our LCD blog for the latest developments in LCD technology.
 

CF Tech

Administrator
According to this it is probably an STN, Yellow Green, with an EL backlight.

The pin-out is probably the "industry standard" for the first 14 pins, pins 15 & 16 are usually used for LED backlights.
 

edro13

New member
So do you think the 15 & 16 on the top row are actually the same as the 15 & 16 on the left vertical side?

Also, could you give me a link to the "industry standard"?

Thanks again,
Ed
 

CF Tech

Administrator
USE THIS INFORMATION AT YOUR OWN RISK

"standard" "HD44780" compatiible LCD pinout:

1 = ground
2 = Vcc (+5v)
3 = Vlcd (contrast, typically around +1v)
4 = RS (Register Select)
5 = R/W (1 = read, 0 = write)
6 = E (Enable)
7 = Data 0
8 = Data 1
9 = Data 2
10 = Data 3
11 = Data 4
12 = Data 5
13 = Data 6
14 = Data 7
15 = backlight (typically, it varies on some LCDs)
16 = backlight (typically, it varies on some LCDs)

You will have to "ohm out" pins 15 & 16 to determine their connection if you do not have a data sheet.

You will need an EL driver if I am right about your backlight, here are some links to EL driver chips:

http://www.sipex.com/products/analog_electro.cfm
http://www.sipex.com/products/analog_piezo.cfm
http://www.supertex.com/products/selector_guides/108
http://www.micrel.com/product-info/el_drivers.shtml
http://www.durel.com/driver.htm

There are a bunch of "tutorial" links on connecting a parallel HD44780 LCD to a PC's parallel port in this post.
 
Top