I am trying to receive some numbers that the numbers can be either positive or negative. I am able to receive the numbers correctly using char but not int. Since that I want to convert char back to int, but I have no luck with that (only some random numbers and totally differently from the origina…

Convert serial.read() to usable int

system October 8, 2012, 7:18am 12

2D
32
D
A

AKA "-2\r\n"