serial0 not available

Hello Everyone,
Trying to use a UDOOneo to receive and send serial data from my PC to test a communication protocol I am trying (trying being the key word) to write.

Anyways using the following code I should be able to see a single byte being received but nothing happens in the Serial Monitor window, but I am not super familiar with programming for adruino so I may be missing something obvious



int incomingByte = 0;
void setup() {
Serial.begin(9600, SERIAL_8N1);
}

void loop() {
if (Serial0.available() > 0) {
//receive input
incomingByte = Serial0.read();
//say what you got
Serial0.print("I received: ");
Serial0.println(incomingByte);

}

 

The Neo arduino has 2 serial devices, Serial and Serial0. Serial is connected to the Linux side, Serial0 is connected to pin 0 and 1. You are mixing the devices in your sketch. Replace Serial0 by Serial and it will work.

 

I have tried using Serial, and Serial1 but neither appear available to me,
by running the code below
int incomingByte = 0;
void setup() {
Serial.begin(9600, SERIAL_8N1);
}

void loop() {
if (Serial0.available() > 0) {
digitalWrite(13, HIGH); //Turn LED ON when Serial Available
//receive input
incomingByte = Serial0.read();
//say what you got
Serial0.print("I received: ");
Serial0.println(incomingByte);
} else digitalWrite(13, LOW); //Turn LED OFF when Serial not available
}

 

Try this and send a character to the Arduino side with the Arduino IDE serial monitor.
Check the examples in the documentation: https://www.udoo.org/docs-neo/Serial_Libraries/index.html
Also check my tutorials that discuss this communication between linux and Neo Arduino. Howto Neo IoT Sensors, Howto Neo Webcontrol

Code:

int incomingByte = 0;
void setup() {
Serial.begin();
}

void loop() {
if (Serial.available() > 0) {
digitalWrite(13, HIGH); //Turn LED ON when Serial Available
//receive input
incomingByte = Serial.read();
//say what you got
Serial.print("I received: ");
Serial.println(incomingByte);
} else digitalWrite(13, LOW); //Turn LED OFF when Serial not available
}