Hi people. Can anyone help with what should be a simple problem. I have some text in the following form. Its a temperature reading from a wireless sensor, the format is T<sensor number>=<float ish> <TAB><TAB><Two digit ascii checksum> T1=18.0<TAB><TAB>XX\n\r Some examples: T1=-11.5 EA T1=24.0 9D Im trying to convert this string into a sensor ID, a floating point reading and a checksum as 3 variables using sscanf sscanf(line,"T%d=%f\t\t%X",&sensorid,&temperature,&checksum); No amount of variations on a theme seem to give me an entire decode here, seems the equals seems to screw things up. Anyone any ideas how I can make this work? Thanks for any advice, Jon