problem with atoi function

Projects Programming
1

Hi there:

I am reading from a bluetooth connection some numbers, in this way:

252#12#1#212#

this is the code:

char input; // variable to receive data from bluetooth
char inputstring; //the string with the numbers
int dato; //the number in inputstring

...
...

void loop() {

if( bluetooth.available() ) // if data is available to read
{
input = bluetooth.read(); // read it and store it in 'input'
if (input != '#') {inputstring += input;}
else //all the number is readed
{dato = atoi(inputstring);
inputstring = ''; //the string is deleted
bluetooth.println(dato); }

}
}

the compiler says that dato = atoi(inputstring) is not correct. "Invalid conversion from 'char' to 'cont char*'.
I have changed the definition of input and stringinput with no success, for example char inputstring[4]

Any help? Thanks in advance

2

atoi expects a null-terminated C string - passing it a single character will never work, as you've found.
A single character is also useless for multi-digit numbers, so the array is the only way to go.

Please use code tags when posting code.

3

now works... thanks!