41 lines
848 B
C++
41 lines
848 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 proxy = 'z';
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volatile char cmd = 'z';
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void setup () {
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Serial.begin(57600);
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softPort.begin(9600);
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pinMode(LED_BUILTIN, OUTPUT);
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}
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//////
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// Sending an x character to the nano over
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// Serial will proxy it to the ESP32 over SoftSerial
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// which will reflect it back to the Nano
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// and will turn on the built-in LED. Proof of
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// concept round trip
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//////
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void loop () {
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if (Serial.available() > 0) {
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proxy = Serial.read();
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softPort.print(proxy);
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}
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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 != 'z') {
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Serial.println(cmd);
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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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cmd = 'z';
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}
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