79 lines
1.8 KiB
C++
79 lines
1.8 KiB
C++
#include <Arduino.h>
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enum SendModes {
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ECHO,
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ONLY_WRITE,
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ONLY_READ,
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WRITE_READ
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};
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enum StringModes {
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FIXED,
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VARIABLE
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};
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// Configure the test application here
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SendModes SEND_MODE = SendModes::WRITE_READ;
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StringModes STRING_MODE = StringModes::VARIABLE;
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uint8_t STRING_IDX = 0;
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String STRINGS[4] = {
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"$Hi\n",
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"$Hello\n",
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"$Hello World\n",
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"$Hello and Merry Christmas to all of you!\n"
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};
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void setup() {
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// put your setup code here, to run once:
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Serial.begin(115200);
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Serial.println("Starting Arduino Serial Test script..");
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Serial1.begin(115200);
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if(STRING_MODE == StringModes::VARIABLE) {
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STRING_IDX = 0;
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}
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pinMode(LED_BUILTIN, OUTPUT);
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}
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void loop() {
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static byte ICOMING_BYTE = 0;
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static uint32_t GLOBAL_IDX = 0;
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digitalWrite(LED_BUILTIN, !digitalRead(LED_BUILTIN));
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// put your main code here, to run repeatedly:
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// send data only when you receive data:
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if (SEND_MODE == SendModes::ONLY_WRITE or SEND_MODE == SendModes::WRITE_READ) {
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Serial.println("Sending string..");
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Serial1.write(STRINGS[STRING_IDX].c_str());
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if(STRING_MODE == StringModes::VARIABLE) {
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STRING_IDX += 1;
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if(STRING_IDX > 3) {
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STRING_IDX = 0;
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}
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}
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}
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if(
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SEND_MODE == SendModes::WRITE_READ or
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SEND_MODE == SendModes::ONLY_READ or
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SEND_MODE == SendModes::ECHO
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) {
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if (Serial1.available() > 0) {
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// read the incoming byte:
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String readString = Serial1.readStringUntil('\n');
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Serial.print(GLOBAL_IDX);
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Serial.print(" - ");
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GLOBAL_IDX++;
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// say what you got:
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Serial.print("I received: ");
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Serial.println(readString);
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if(SEND_MODE == SendModes::ECHO) {
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delay(200);
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Serial.println("Sending back echo message");
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String sendBack = readString + '\n';
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Serial1.write(sendBack.c_str());
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}
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}
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}
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delay(3000);
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}
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