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Topic: uLCD-144 4D problem with Duemilanove (Read 3 times) previous topic - next topic

GaryP

I was talking about the Duemilanove...
;)

It's time to check your circuit, could you show us how it is put together?

Cheers,
Kari
The only law for me; Ohms Law: U=R*I       P=U*I
Note to self: "Damn! Why don't you just fix it!!!"

a.periz

That's how I connect the display:

Display          Arduino
5 (RES)          RESET
6 (GND)          GND
7 (RX)             TX
8 (TX)             RX
9 (VIN)            +5

Thank you

GaryP

What comes to my mind is that your TX and RX are swapped, could it be?

Kari
The only law for me; Ohms Law: U=R*I       P=U*I
Note to self: "Damn! Why don't you just fix it!!!"

RuggedCircuits

Do you have the USB plugged in at the same time? Try disconnecting it.

--
The Gadget Shield: accelerometer, RGB LED, IR transmit/receive, speaker, microphone, light sensor, potentiometer, pushbuttons

a.periz

Quote
What comes to my mind is that your TX and RX are swapped, could it be?

Yes, it is right, because the display tx and rx are from "the display point of view"...

Quote
Do you have the USB plugged in at the same time? Try disconnecting it.

I tried but nothing change...
It is unbelievable!
Same code, same wiring! I just move wires from the mega to the duemilanove!

Thank guys for your time!

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