Trouble using strcmp to find pointer index for character in a string

Using Arduino Programming Questions
1

Hi all,
Hoping someone can tell me whats wrong here. Works perfect and will return the index of the first instance of any letter or number accept for the letter "H" (returns integer value 2). New to programming and have tried to find the answer but no luck.

// include the library code:
  #include <string.h>
  #include <SoftwareSerial.h>

  char  HC12ReadBuffer[]= "D_T:58 D_H:88 R_T:24 R_H:90";
  char* Pointer='H';
  int Return;
  
  void setup() {
    Serial.begin(9600);                       // Open serial port to PC
    delay(2000);
  }
  
  void loop() {
  LCD_Send();
  Return = find(Pointer);
  }

  void LCD_Send() {
  delay (2000);
  Serial.println(Return);
  }
  
  int find(char* s) {
  for(int i = 0; HC12ReadBuffer[i]; i++) {
    if(!strcmp(s, HC12ReadBuffer[i])) return i;
  }
  return -1; // -1 means "not found"
}
2

strcmp works on NUL terminated strings, not on a pointer to a character.

3

Ok thanks I will keep reading

4

This should work better.

char* Pointer="H";
5

sterretje:
This should work better.

char* Pointer="H";

Call it a Pet Peeve, but use:

const char* const Pointer = "H";

or

const char Pointer[] = "H";