Why my serial message won't show on another when I try use 2 Arduino communication

Question

I am trying to make a simple chatting program with my 2 arduino uno and 2 PC. But when I tried write a message using PC1 serial monitor the message won't show up on PC2 serial monitor. I can't see the problem or maybe I miss something on the program.

Here is my code: PC1:

#include <SoftwareSerial.h>
SoftwareSerial Serial1(10,11);
void setup() 
{
 Serial.begin(9600);
 Serial1.begin(9600);
}
void loop() 
{
 if ( Serial.available()) // Check to see if at least one character is available
 {
 char ch1 = Serial.read();
 Serial1.print(ch1);
 }
 delay(200);
}

PC2:

#include <SoftwareSerial.h>
SoftwareSerial Serial1(10,11);
void setup() 
{
 Serial.begin(9600);
 Serial1.begin(9600);
}
void loop() 
{
 if (Serial1.available()) 
 {
 char ch = Serial1.read();
 Serial.print(ch); 
 }
} 

• Juraj: did you cross the wires RX to TX? use write not print
• Ilzu: Yeah I wires RX to TX. So I should use write instead print?
• jose can u c: The delay(200) is not necessary -- why is it there? It just creates annoying delays in the output
• R Zach: Did you tie the grounds together?
• Ilzu: I see maybe I can just remove the code then

Answer 1

I haven't tested this in a while but it has been my experience that even though you can have multiple IDE windows open, you can only have one Serial Monitor at a time. The way I got around this is to use a Terminal Emulator program for the second Arduino.