40 lines
1.0 KiB
C++
40 lines
1.0 KiB
C++
String inputString = ""; // a String to hold incoming data
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boolean stringComplete = false; // whether the string is complete
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void setup() {
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// initialize serial:
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Serial.begin(115200);
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// reserve 200 bytes for the inputString:
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inputString.reserve(200);
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}
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void loop() {
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// print the string when a newline arrives:
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if (stringComplete) {
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Serial.println(inputString);
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// clear the string:
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inputString = "";
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stringComplete = false;
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}
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}
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/*
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SerialEvent occurs whenever a new data comes in the hardware serial RX. This
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routine is run between each time loop() runs, so using delay inside loop can
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delay response. Multiple bytes of data may be available.
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*/
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void serialEvent() {
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while (Serial.available()) {
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// get the new byte:
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char inChar = (char)Serial.read();
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// add it to the inputString:
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inputString += inChar;
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// if the incoming character is a newline, set a flag so the main loop can
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// do something about it:
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if (inChar == '\n') {
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stringComplete = true;
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}
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}
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}
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