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wojciech-zurek/EchoArduino

Created January 16, 2020 13:16
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Serial I/O on Arduino + serial I/O on Linux
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EchoArduino
//Arduino:
#include <Arduino.h>
#define LF 0x0A
char buffer[11];
int idx = 0;
void setup()
{
Serial.begin(9600);
Serial.print("Echo start\r\n");
}
void loop()
{
if (Serial.available() > 0)
{
buffer[idx] = Serial.read();
if (buffer[idx] == LF || idx >= 9)
{
buffer[idx + 1] = 0;
Serial.print("Received message: ");
Serial.println(buffer);
idx = -1;
}
idx++;
}
}
//Linux:
stty -F /dev/ttyUSB0 cs8 9600 ignbrk -brkint -icrnl -imaxbel -opost -onlcr -isig -icanon -iexten -echo -echoe -echok -echoctl -echoke noflsh -ixon -crtscts
tail -f /dev/ttyUSB0
echo "1233333333333333" > /dev/ttyUSB0
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