67 lines
1.6 KiB
Arduino
67 lines
1.6 KiB
Arduino
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/*
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* This ESP32 code is created by esp32io.com
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*
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* This ESP32 code is released in the public domain
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*
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* For more detail (instruction and wiring diagram), visit https://esp32io.com/tutorials/esp32-rs232
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*/
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//########################
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char hexValues[] = "1B74";
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// Länge des Hexadezimal-Arrays berechnen
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int lengthHexArray = sizeof(hexValues) - 1;
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//es würde auch funktionieren, wenn man als Länge 2 einfügt, dann printed er in der Konsole nur ein N
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//char asciiVal[lengthHexArray / 2 + 1] = {(char) 0x1B, (char) 0x70}; //70 ist Print - 74 ist tare
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char asciiVal_read[3] = {(char) 0x1B, (char) 0x70}; //70 ist Print
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char asciiVal_tare[3] = {(char) 0x1B, (char) 0x74}; //74 ist tare
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void setup() {
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// start communication with baud rate 9600
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Serial.begin(9600); // Serial Monitor
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Serial2.begin(9600); // RS232
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// wait a moment to allow serial ports to initialize
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delay(100);
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//
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// Beispiel-Hexadezimalwerte
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}
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void loop() {
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//Serial.println(asciiVal);
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//char pcData = Serial.read();
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String pcData = Serial.readStringUntil('\n');
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// abhängig davon, was vom PC empfangen wird, wird der entsprechende Befehl zur Waage geschickt
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if(pcData == "tare"){
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Serial2.write(asciiVal_tare);
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} else if(pcData == "getWeight"){
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Serial2.write(asciiVal_read);
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}
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pcData == "";
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//Serial2.write(asciiVal_read);
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// Check if there's data available on Serial
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if (Serial2.available()) {
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//char data = Serial2.read(); // read the received character
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String data = Serial2.readStringUntil('\n'); // read the received character
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data = data + "\n";
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Serial.write(data.c_str());
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}
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}
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