Objective-C Serial - Mac OS X

Question

I'm currently running the followin in Terminal to send a command over USB serial.

/Users/drummerboyx/Library/Scripts/arduino-serial -b 9600 -p /dev/tty.usbserial-A800ev0Z -s 1

Is there a way to do this in Objective-C?

danVnest · Answer 1 · 2013-04-23T03:27:39.150

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ORSSerialPort is a newer, easier to use alternative to AMSerialPort.

Using ORSSerialPort to open a port and send data can be as simple as this:

ORSSerialPort *serialPort = [ORSSerialPort serialPortWithPath:@"/dev/cu.KeySerial1"];
serialPort.baudRate = [NSNumber numberWithInteger:4800];
[serialPort open];
[serialPort sendData:someData]; // someData is an NSData object
[serialPort close];

edited Apr 23 '13 at 03:27

answered Jul 23 '12 at 05:28

danVnest

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Thanks for the tip, this looks like a much cleaner library! – Jason Whitehorn Nov 21 '12 at 19:23
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You made an typo with `serialPortWithPath:`, you said `serialPortWithWithPath:`, you added an extra with in the method name. – Matthew S. Apr 23 '13 at 01:12
Note: If you want to support PowerPC based Macs, you (unfortunately) can't use ORSSerialPort. – Mar 20 '14 at 23:22

score 8 · Accepted Answer · answered May 27 '11 at 16:18

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Some google-fu found:

Serial Communication Cocoa Framework (on arduino.cc!)
AMSerialPort

I know pretty much nothing about it, but the name "IOKit" also sounds pretty promising...

answered May 27 '11 at 16:18

Dave DeLong

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score 1 · Answer 3 · answered May 27 '11 at 15:20

If you just want to run that command from your code, you can use the system function:

#include <stdio.h>
#include <stdlib.h>

system("/Users/drummerboyx/Library/Scripts/arduino-serial -b 9600 -p /dev/tty.usbserial-A800ev0Z -s 1");

You'll need to set your Objective-C source code file extension to .mm, which tells Xcode to compile it as Objective-C++.

score 1 · Answer 4 · answered May 27 '11 at 15:26

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If you want to stick to Cocoa - Have a look at NSTask.

answered May 27 '11 at 15:26

Abizern

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Yes, but is there a way to do this WITHOUT running system commands? – objectiveccoder001 May 27 '11 at 15:34

Objective-C Serial - Mac OS X

4 Answers4

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