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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
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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.
 
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