The confusion is that it says pin 18 is Vout and pin 3 is VeeAccording to the Arduino Playground, I'm supposed to connect Vee(pin 18) to one leg of 10k pot. (Other leg to ground)and Vout(pin 3) to the wiper.It looks like the pin symbol given in my datasheet is reversed. i.e. Vout is pin 18 and Vee is pin 3.
Hence there needs to be a limiting resistor I'm guessing?
It also says Vee level is 0 ~ -8V. If the wiper is at the extreme end of -10V level then Vee will hav a -10V.
The confusion is that it says pin 18 is Vout and pin 3 is VeeAccording to the Arduino Playground, I'm supposed to connect Vee(pin 18) to one leg of 10k pot. (Other leg to ground)and Vout(pin 3) to the wiper.
There seems to be some confusion over pin 3 and some symbol names.Pin 3 is Vo and Vo != VeeYou are misreading the datasheet ......(The datasheet linked to on the product page you provided calls pin 3 Vonot Vee as you listed in your pinout table- See pages 3 and 6 of the datasheet)
I apologize for an error in the panel type C note on the playground page.Somebody typed in Vee for pin 3 instead of Vo.
He may not have been misreading the datasheet, he could have been reading the pinout table on the product page. That is what I was referring to when I said "Isn't it nice that they call the voltage at pin 3 VO in some places and VEE or Vee in others?".
That's why I feel it best to use pin numbers when you can (as on the character mode LCDs) and complete pin names when you can't. If you have to use shortened symbolic names because of multiple references it probably would be best to identify them with complete names the first time they are used.[/color]
[Edit] I just looked at some random character mode LCD data sheets. These devices don't have a negative supply or a pin 18 but pin 3 serves the same function as it does on the GLCDs. Most datasheets showed pin 3 labeled as VO, but there was at least one where it was labeled as Vee.
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