Arduino Combine multiple char array to single

Job ID: 32818925

Budget: ₹600 – ₹1,500 INR

float setPH=10.40;

char testStr[30];
char temp[12];
unsigned int temp1=setPH*100;
itoa(temp1, temp, 10);

i want to combine the array temp & "-" to testStr

so that when i print the testStr i should get "10.40-"

Related categories: Electronics Microcontroller Electrical Engineering C++ Programming Arduino