Is is possible to pass a sensor as an argument to a function? If yes how to declare the type of the parameters?

You should be able to pass sensor values as parameters to a function. For example:



You have to make sure that the data type you are sending up matches what is required for the function (in this case, 'int'; 'bool' would also work). You also have to make sure that you are sending the value of the sensor (by using the SensorValue command) and not the index of the sensor:



The above code will compile but will pass the index location of the 'touch1' sensor, not the actual value of it.

I am not sure that's what he's asking. I thought he's asking if you can pass the sensor ID to a function. If so, yes, the type for it is tSensors.

EDIT: fixed the spelling of tSensors in the code.

>>JohnWatson: Sorry that I didn't express my question clearly. MHTS gets my question. Still it's very nice of you

>>MHTS:
I tried to compile your codes but it yields below compilation errors. Is there anything wrong? Or with the software version?

File "tSensorTest.c" compiled on Sep 18 2012 02:48:32
**Error**:Variable 'tSensor' declaration must be qualified with type. Type 'short' used.
**Error**:Ummatched left parenthesis '('
**Error**:Expected->')'. Found 'sensorID'
**Error**:No body declared for procedure
**Error**:Expected->'}'. Found 'sensorID'
**Error**:Undefined variable 'sensorID'. 'short' assumed.
**Error**:Missing ';' before ')'
**Error**:Executable statements not valid in 'main' declaration block
**Error**:Unexpected scanner token-> ')'
*Warning*:Meaningless statement -- no code generated
**Error**:Duplicate definition for task 'main'.

I am sorry, I don't have RobotC in front of me. So I told you the wrong spelling. It should be tSensors not tSensor.
Sorry about that.

Do you have the NXT set as the platform to compile for?

- Xander

Dear All,

Case settled. Thanks for your help.

Btw, I'm using RobotC 3.5 and a set of NXT for my undergraduate project. Can you recommend some material that introduces more advanced stuff of RobotC? The curriculum on RobotC's website seems a little too "basic" for me LOL~~

More advanced stuff? Programming wise or robot wise?

C is (kinda) C. There are lots of books on that subject.

Robot wise; There is not anything I know of, published as a book, it has been discussed.

http://botbench.com/blog/ publishes code, as do I http://www.spiked3.com/

I often find very good stuff from http://nxttime.wordpress.com/

Other than that, google is your friend.

I would also suggest checking out our wiki (https://www.robotc.net/wiki) for advanced programming material. We are continually adding to and updating it (we recently added overviews on pointers and recursion, for example). It also has a 'Programming Tips and Tricks' section that starts to dive into the more advanced features of ROBOTC with topics such as multitaskingand fuzzy logic being covered. Plus, most of the information is provided by the ROBOTC community members.

If anyone has anything they would like to add or like to see added to the wiki, please do not hesitate to let me know!

Interesting, I didn't know that before. But, however, could you guys formulate some examples of ways to use this code?

thanks in advance.

I mean also real world applications of this structure?

thanks