UNO32 and Mega25602 serial communication

Projects Programming
1

Hello

I am trying to have a serial communication between two micro controllers (mega and Uno) where the Uno micro controller will send a signal when sensor is touched in order to move a servo motor connected to the Mega.

I am trying to send a Char from the Uno32 to it. but the mega is not receiving neither the Receiver led is blinking.

These are the serial block in the code:

MEGA: Receiver

if ( Serial1.available())
{
sensorSerialData= Serial1.read();
val= Serial1.parseInt();

if (val== 3){
int j=9;
while(j!=0){
myservo1.write(170);
myservo2.write(0);

delay(400);
myservo1.write(90);
myservo2.write(90);
j--;

}

Uno:Transmitter:

if(sensorvalue4 == HIGH )
{

Serial1.write(3);
digitalWrite(laughing, LOW);
delay(500);
}

plz help where do you think is the error?

3

I don't know anything about the Chipkit Uno32 so let's assume you have that part right.

Have you the connections correct ? Rx to Tx, Tx to Rx and GND to GND.

Look at the examples in serial input basics for simple reliable ways to receive data.

And please use the code button when posting code

...R

4

Delta_G:

  sensorSerialData= Serial1.read();   // this line gets the 3 out of the buffer

val= Serial1.parseInt();         // Now there's nothing left for this one to read




Since you're using write to send the 3 raw and not ascii, I don't think parseInt is what you want. Just stick with the one in sensorSerialData

Thanks for your reply appreciate it

however i have tried this one before, i mean sticking with only
sensorSerialData= Serial1.read();
still no luck

When i send an integer to the mega does it receive it as integer or do i have to convert it there as well?