im making a car with arduino and using a 433 hz transmitter and reciver and i want to say to it wat to do in one line of sending a message but i dont know how to decode it into smaller chunks as commands
Welcome to the forum
Much more detail of your project and what you want to do is needed
It sounds like you want to send a series of commands to the car and have it decode them into individual commands. If so then take a look at Serial input basics - updated
If that is not what you want then please give full details and post any code that you already have
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Arduino provides String functions to find separators and take substrings.
My SafeString library has similar functions (and more) that use char[]'s underneath but protect you from buffer overruns
Here is some code that breaks a CSV String up into 'fields' separated by , using Arduino Strings
// assuming you radio returns a null terminated char[] called radioData
// you may need to add the '\0' yourself to the end of radioData
String data = radioData;
// looking for ,
data += ','; // add a trailing , to simplify the logic
int endIdx = 0; int startIdx = 0;
while ((endIdx = data.indexOf(',', startIdx)) >= 0) { // not -1 i.e found ,
String field = data.substring(startIdx, endIdx);
Serial.println(field);
startIdx = endIdx + 1; // skip the ,
}
SafeString has similar functions.
See the example files in the SafeString library for lots of code examples.
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