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20 lines
403 B
20 lines
403 B
void setup() {
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// initialize serial communication at 9600 bits per second:
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Serial.begin(9600);
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}
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void loop() {
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// send data only when you receive data:
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while (Serial.available() > 0) {
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// read the incoming byte:
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int incomingByte = Serial.read();
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Serial.write(incomingByte);
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}
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static int no = 0;
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Serial.print("serial port test ");
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Serial.println(no++);
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delay(2000);
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}
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