Misc.ino

/*********************************************************************************************\
 * Convert HEX or DEC tring to unsigned long HEX, DEC
\*********************************************************************************************/
unsigned long str2int(char *string) {
  return(strtoul(string,NULL,0));  
}
/*********************************************************************************************\
 * Convert string to command code
\*********************************************************************************************/
int str2cmd(char *command) {
    if(strcasecmp_P(command,PSTR("ON")) == 0) return VALUE_ON;
    if(strcasecmp_P(command,PSTR("OFF")) == 0) return VALUE_OFF;
    if(strcasecmp_P(command,PSTR("ALLON")) == 0) return VALUE_ALLON;
    if(strcasecmp_P(command,PSTR("ALLOFF")) == 0) return VALUE_ALLOFF;
    if(strcasecmp_P(command,PSTR("PAIR")) == 0) return VALUE_PAIR;
    if(strcasecmp_P(command,PSTR("DIM")) == 0) return VALUE_DIM;
    if(strcasecmp_P(command,PSTR("BRIGHT")) == 0) return VALUE_BRIGHT;
    if(strcasecmp_P(command,PSTR("UP")) == 0) return VALUE_UP;
    if(strcasecmp_P(command,PSTR("DOWN")) == 0) return VALUE_DOWN;
    if(strcasecmp_P(command,PSTR("STOP")) == 0) return VALUE_STOP;
    if(strcasecmp_P(command,PSTR("CONFIRM")) == 0) return VALUE_CONFIRM;
    if(strcasecmp_P(command,PSTR("LIMIT")) == 0) return VALUE_LIMIT;
    return false;
}
/********************************************************************************************\
 * Convert unsigned long to float long through memory
\*********************************************************************************************/
float ul2float(unsigned long ul) {
    float f;
    memcpy(&f, &ul,4);
    return f;
}
/*********************************************************************************************/
void PrintHex8(uint8_t *data, uint8_t length) { // prints 8-bit data in hex (lowercase)
  char tmp[length*2+1];
  byte first ;
  int j=0;
  for (uint8_t i=0; i<length; i++) {
    first = (data[i] >> 4) | 48;
    if (first > 57) tmp[j] = first + (byte)39;
    else tmp[j] = first ;
    j++;

    first = (data[i] & 0x0F) | 48;
    if (first > 57) tmp[j] = first + (byte)39;  
    else tmp[j] = first;
    j++;
  }
  tmp[length*2] = 0;
  Serial.print(tmp);
}
/*********************************************************************************************/
// todo: make uppercase?  3a = 3 or 48 (0x30) = 0x33   >57 (0x39)   a>3a >39 >   +27 
void PrintHexByte(uint8_t data) { // prints 8-bit value in hex (single byte) 
  char tmp[3];
  byte first ;
  first = (data >> 4) | 48;                   // or with 0x30
  if (first > 57) tmp[0] = first + (byte)7;   // 39;  // if > 0x39 add 0x27 
  else tmp[0] = first ;

  first = (data & 0x0F) | 48;
  if (first > 57) tmp[1] = first + (byte)7;  // 39; 
  else tmp[1] = first;
  tmp[2] = 0;
  Serial.print(tmp);
}
/*********************************************************************************************/
// Reverse all bits in a byte
byte reverseBits(byte data) {
    byte b = data;
    for (byte i = 0; i < 8; ++i) {
        data = (data << 1) | (b & 1);
        b >>= 1;
    }
    return data;
}