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11 years, 1 month ago.
Convert Char to float for RS485 addressing
Hello All, Im quite new to this and I think this is a simple question. I am Using Richard Ellingworth excellent RS485 test bed and I have two mbeds communicating the alphabet to each other using the Max485 chips.
My question is I am sending and receiving a char but need to use somthing like an int or float to address the devices. eg: if mbedaddress=01 then respond else ignore.
Can I address using a char or do I need to convert or transmit and int or float.
Any help most welcome
John
1 Answer
11 years, 1 month ago.
To the microprocessor a char is just an 8 bit int so you can use it as if it were a number. The only thing that makes it a character is how you choose to interpret it, in your case using ASCII format.
Tim