CODEWITHSUNDEEP
arduino
Curnelious
Curnelious

Reputation: 1

Char conversion is wrong?

I have this: 

 Serial.write(charBuf[0]);  //gives 5
 String data(charBuf);
 Serial.write(data);   //gives nothing (space)

first is prints 5 , second prints nothing. What am i missing? is it has to do with NULL terminated stuff?

This is how the buffer is being created: 

int len=1;
char charBuf[len];
for(int k=ACT_THRESH;k<ACT_THRESH+len;k++)
{
    charBuf[k-ACT_THRESH]= EEPROM.read(k);
}

Upvotes: 1

Views: 30

Answers (1)

&#212;rel
&#212;rel

Reputation: 7622

int len = 1;
int str_len = 0;
char charBuf[16];
for(int k = ACT_THRESH; k < ACT_THRESH + len && str_len < sizeof(charBuf); k++)
{
    charBuf[str_len++]= EEPROM.read(k);
}
charBuf[str_len] = '\0';

But I don't get the goal of the loop if len = 1

Upvotes: 1

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