Connect 2 serial-enabled Displays (SerLCD v2.5) to the DUE

Using Arduino Displays
1

Hi everybody,

is it possible to connect two serial-enabled LCD Displays (SerLCD v2.5) to the DUE?
if yes, to which pins of the DUE can i connect the RX pin of the SerLCD?

2

TX1, TX2 and TX3 would be the best candidates.

3

thank you MorganS :slight_smile:

can you explain me the difference between TX1, TX2 and TX3 (Max Output Current/Max Current Sink)?

and what is the difference between TX and RX?

DUE.png
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4

... and is it possible to connect two displays?

5

Do you mean to show identical data on two displays or something different? For identical, you can connect both to one output. For different, you need to use two of the four hardware serial ports provided on the Due.

6

TX - transmit
RX - receive

Of course you should connect Arduino's TX to SerLCD's RX, if you hope to send something from arduino to SerLCD. You will NOT connect an RX to another RX, or one TX to another TX.

7

MorganS:
Do you mean to show identical data on two displays or something different?

I want to show different data.

MorganS:
For different, you need to use two of the four hardware serial ports provided on the Due.

You mean TX1, TX2 or TX3? Two of them?

liudr:
TX - transmit
RX - receive

Of course you should connect Arduino's TX to SerLCD's RX, if you hope to send something from arduino to SerLCD. You will NOT connect an RX to another RX, or one TX to another TX.

Thank you liudr, that make sense :slight_smile: