Urgent need for help with Bela and Beaglebone Wireless

Anderswh

giuliomoro I asked the cafe for their wifi and that worked fine!! So issue resolved. Im trying to dumb down the OSC pipe example down, as i only need to send OSC data (either 1s or 0s), and i want it to run on loop from boot as its going to be a standalone sensor. However im getting alot of errors and im not quite sure which parts of the code i can/should remove for this. Any tips?

I know im asking alot of questions, hope its not too big of a hassle!! Thank you for all the help

Anderswh

Anderswh I want to run it without the osc.js script for example.

giuliomoro

Anderswh However im getting alot of errors and im not quite sure which parts of the code i can/should remove for this.

That's a bit generic... what sort of errors are you getting?

It seems like all you need is something like:

#include <Bela.h>
#include <libraries/OscSender/OscSender.h>

OscSender oscSender;
int remotePort = 7563;
const char* remoteIp = "127.0.0.1"; // replace this with the receiver's IP address
float period = 0.1; // how often to send the OSC message

bool setup(BelaContext* context, void*)
{
	oscSender.setup(remotePort, remoteIp);
	return true;
}

void render(BelaContext* context, void*)
{
	int value;
	// do some magic here to  set the `value`
	// ....
	// e.g.: keep track of passing samples
	value = context->audioFramesElapsed; 
	// ...
	// then send it via OSC at the specified interval
	static int count = 0;
	count += context->audioFrames;
	if(count > context->audioSampleRate * period)
	{
		count = 0;
		oscSender.newMessage("/whatever-target").add(value).send();
	}
}

void cleanup(BelaContext*,void*) {}

Anderswh

giuliomoro Yeah sorry, was very generic! Your example was of great help! It works fine for around 10 seconds, but then the console gets spammed with Error while sending to pipe from OscSenderTask_192.168.39.1127563: (12) Cannot allocate memory (size: 20)

Any idea what that may be?

giuliomoro

Anderswh Any idea what that may be?

first off, you need a fix (as per https://forum.bela.io/d/2033-error-while-loading-shared-libraries-libseasocks-so-1-4-3/9). Run this once in the console at the bottom of the IDE:

sed -i  s/OscSenderTask_/OscSndrTsk_/ /root/Bela/libraries/OscSender/OscSender.cpp

then retrigger the build of the project: add a space to the render.cpp file somewhere where it doesn't make a difference and press the build button again. You will see it rebuilds the OscSender library as part of the process.

Now the startup error should have disappeared, hopefully everything works fine

Anderswh

I also get these two errors on startup, not sure what they mean:

AuxTaskNonRT OscSenderTask_192.168.39.1127563: could not open pipe /proc/xenomai/registry/rtipc/xddp/p_OscSenderTask_192.168.39.1127563: (2) No such file or directory
Aborting AuxTaskNonRT OscSenderTask_192.168.39.1127563

Anderswh

Here is the full code if that is of interest:

#include <Bela.h>
#include <libraries/OscSender/OscSender.h>
#include <stdlib.h>


int gInputPin = 1; // digital pin 1 - check the pin diagram in the IDE
int gOutputPin = 0; // digital pin 0 - check the pin diagram in the IDE
int pvalue;
int value;

OscSender oscSender;
int remotePort = 7563;
const char* remoteIp = "192.168.39.112"; // replace this with the receiver's IP address
//const char* remoteIp = "127.0.0.1"; // replace this with the receiver's IP address

float period = 0.1; // how often to send the OSC message

bool setup(BelaContext* context, void*)
{
	oscSender.setup(remotePort, remoteIp);
	return true;
}

void render(BelaContext* context, void*)
{
	int value;
	// do some magic here to  set the `value`
	// ....
	// e.g.: keep track of passing samples
	//value = context->audioFramesElapsed; 
	// ...
	// then send it via OSC at the specified interval
	value=digitalRead(context, 0, gInputPin); //read the value of the button
	
	static int count = 0;
	count += context->audioFrames;
	if(count > context->audioSampleRate * period)
	{
		count = 0;
			if (value!=pvalue){
			rt_printf("Here's the value: %i\n",value);
		}
		pvalue = value;
		oscSender.newMessage("/sensorOne").add(value).send();
	}
}

void cleanup(BelaContext*,void*) {}

Anderswh

giuliomoro Hmm i tried following the steps you provided but the error is still there. I might have misunderstood the retrigger and add a space part. What i did was:
1. Run the line you provided in the console
2. Added some line spaces in the render.cpp file, aka just pressed enter a few times
3. Pressed the Build&run button.

It might be worth mentioning that i get no errors at all if i use the local host 127.0.0.1 ip you provided in the original example.

giuliomoro

Anderswh AuxTaskNonRT OscSenderTask_192.168.39.1127563: could not open pipe /proc/xenomai/registry/rtipc/xddp/p_OscSenderTask_192.168.39.1127563: (2) No such file or directory

this mean that either this line

giuliomoro sed -i s/OscSenderTask/OscSndrTsk/ /root/Bela/libraries/OscSender/OscSender.cpp

was not run properly or it the file was somehow not rebuilt: it should show something like p_OscSndrTsk_192.168.39.1127563

Can you:

run the line again in the console at the bottom of the IDE
in that same console, run git diff libraries/OscSender/OscSender.cpp and post the result here
trigger a rebuild and rebuild, verifying it says "Building library OscSender"

giuliomoro

Can you show what errors you are getting now? Is it still that it runs fine for a few seconds and then it starts printing errors?

giuliomoro

and while/if it runs fine at the beginning, is the data received on the host?

Anderswh

The running fine at the start was a misunderstanding on my end. Sensorreading part was going fine but nothing was being sendt through osc. Here is the console output from when i press the build&run button:
Building project ... Building render.cpp... ...done Using library OscSender Using library UdpClient Linking... ...done Build finished Running project ... AuxTaskNonRT OscSenderTask_192.168.39.1127563: could not open pipe /proc/xenomai/registry/rtipc/xddp/p_OscSenderTask_192.168.39.1127563: (2) No such file or directory Aborting AuxTaskNonRT OscSenderTask_192.168.39.1127563

Anderswh

That seemed to work! However i dont seem to receive anything on the host. When using the localip, the console kept flooding with osc message formats (which i assume is a good thing). My console is completely empty however, even though the errors dissapeared. Here is the complete output i got after following your steps:

root@bela ~/Bela# sed -i  s/OscSenderTask_/OscSndrTsk_/ /root/Bela/libraries/OscSender/OscSender.cpp
root@bela ~/Bela# git diff libraries/OscSender/OscSender.cpp
diff --git a/libraries/OscSender/OscSender.cpp b/libraries/OscSender/OscSender.cpp
index 93ce26c1..480054cc 100644
--- a/libraries/OscSender/OscSender.cpp
+++ b/libraries/OscSender/OscSender.cpp
@@ -29,7 +29,7 @@ void OscSender::setup(int port, std::string ip_address){
 	socket->setup(port, ip_address.c_str());
 	
 	send_task = std::unique_ptr(new AuxTaskNonRT());
-	send_task->create(std::string("OscSenderTask_") + ip_address + std::to_string(port), [this](void* buf, int size){send_task_func(buf, size); });
+	send_task->create(std::string("OscSndrTsk_") + ip_address + std::to_string(port), [this](void* buf, int size){send_task_func(buf, size); });
 }
 OscSender &OscSender::newMessage(std::string address){
Building project ...
Building render.cpp...
 ...done
Using library OscSender
Using library UdpClient
Building library OscSender
Linking...
 ...done
Build finished
Running project ...
Mar 02 15:57:19 bela stdbuf[99]: Makefile:597: recipe for target 'runonly' failed
Mar 02 15:57:19 bela stdbuf[99]: make: *** [runonly] Terminated
Mar 02 15:57:19 bela systemd[1]: Stopping Run Bela at boot...
Mar 02 15:57:19 bela systemd[1]: Stopped Run Bela at boot.
Mar 02 15:57:19 bela stdbuf[99]: Makefile:597: recipe for target 'runonly' failed
Mar 02 15:57:19 bela stdbuf[99]: make: *** [runonly] Terminated
Mar 02 15:57:19 bela systemd[1]: Stopping Run Bela at boot...
Mar 02 15:57:19 bela systemd[1]: Stopped Run Bela at boot.

Anderswh

Nevermind! Got it working now!! Thank you so so so much giulomoro. Really hope i wont have to bother you again!!

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