KEY_ESC never reached in else if

Projects Programming
1

Check for ESC key never reached in de code below.
Using TerraTerm to send key strokes to the Arduino are showing me that the ESC HEX-code =0x27 but this key is never reconized. Why not??

#include <Arduino.h>
#include <Streaming.h>  /* http://arduiniana.org/libraries/streaming/ */

#define   KEY_ESC         0x1B

boolean   recvCommand  =  false;

void setup() {
  Serial.begin(9600);
  Serial.println("Enter Command: ");
  Serial << "BIN\tOCT\tDEC\tHEX" << endl;
}

void loop() {
  char c = Serial.read(); // note read() returns an int, char c = converts it to a char
  if (c != -1) {  // read() return -1 if there is nothing to be read.
    // got a char show it
    Serial.print(c, BIN);
    Serial.print("\t");
    Serial.print(c, OCT);
    Serial.print("\t");
    Serial.print(c, DEC);
    Serial.print("\t");
    Serial.print(c, HEX);
    Serial.print("\t");
    Serial.println(c);
    recvCommand = true;
  }
  if (recvCommand == true) {
    Serial.println("Execute command");
    recvCommand = false;
  } else if (recvCommand == true && c == KEY_ESC) {
    Serial.println("Execute num-key");
    recvCommand = false;
  }
}
2

gharryh:
ESC HEX-code =0x27

No. It's 0x1B.

1:  if (recvCommand == true) {
2:   Serial.println("Execute command");
3:    recvCommand = false;
4:  } else if (recvCommand == true && c == KEY_ESC) {
5:    Serial.println("Execute num-key");
6:    recvCommand = false;

The "else if" in line 4 is only executed when recvCommand is false. But then it checks if recvCommand is true (and it never is), so nothing else will happen!

3

Thanx correcting the if flow works

4

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