I have a new Graphic vfd unit from Noritake (gu256x128c-d903m) however I am unable to display or even light it up properly. All I see is red lines in the display after connecting arduino power supply or an external power supply. I have tried Async serial mode using Noritake library to no avail.
I have put it all the files and datasheet and other related pdf in a compressed file.
Please looking for anyone to guide me as after many tries I have given up. I also own an old vfd unit , that too I have not been able to use with arduino.
VFD Arduino.zip (598 KB)
That datasheet doesn't include enough information about how to control that module.
But if you use their library code, it should take of all that.
One that that is very strange, and I've not seen before, is that the module supply voltage is 5v but the logic i/o signals are 3v.
What arduino are you using and if it is a 5v cpu did you use voltage level shifters on all the signals?
--- bill
bperrybap:
That datasheet doesn't include enough information about how to control that module.
But if you use their library code, it should take of all that.
One that that is very strange, and I've not seen before, is that the module supply voltage is 5v but the logic i/o signals are 3v.
What arduino are you using and if it is a 5v cpu did you use voltage level shifters on all the signals?
--- bill
thanks for helping, i tried that and after many hours i realize that i could send instructions but not receive any. Also the vfd needs resetting each time in code, and that i had to disconnect tx as its not working and causing program to not run if connected to where specified. Now the only issue is that I can not send anything from vfd to arduino.
Sending of text to vfd now works. However this is a touch screen vfd and it seems either the touch screen is fried or for some unknown reason the tx is not able to send any data to arduino.