31 lines
549 B
C++
31 lines
549 B
C++
#include <SoftwareSerial.h>
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#define SOFTWARE_RX 10
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#define SOFTWARE_TX 11
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SoftwareSerial softPort(SOFTWARE_RX, SOFTWARE_TX);
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volatile char cmd = 'z';
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volatile long now;
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volatile long start;
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void setup () {
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softPort.begin(9600);
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start = millis();
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pinMode(LED_BUILTIN, OUTPUT);
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}
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void loop () {
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now = millis();
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if (softPort.available() > 0) {
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cmd = softPort.read();
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}
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if (cmd == 'x') {
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digitalWrite(LED_BUILTIN, HIGH);
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}
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if (now >= start + 5000) {
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softPort.print('x');
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}
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}
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