Is it possible to run shell commands from applications created with the Cloud IDE?

Software
1

I have the Tinkerboard/ROS-Core2 environment. I would like to run system shell commands.

Here’s a simple example. It compiles with no errors. The system command works on the command line.
The IDE allowed the system function. Is there’s a different syntax I need to use ?

If system shell commands work I will eventually configure festival for speech synthesis.

#include
#include
#include “hFramework.h”
#include “hCloudClient.h”
uint16_t v_int;

void send()
{
for (;:wink:
{
platform.printf(“asd %d\r\n”, sys.getRefTime());
sys.delay(1000);
}
}

void cfgHandler()
{
auto l = platform.ui.label(“l1”);
l.setText(“label1”);
auto b = platform.ui.button(“btn1”);
b.setText(“button1”);
b.setLocation(100, 100);
platform.ui.video.enable();
}

void onConsoleWrite(hId id, const char* msg)
{
}

void onKeyEvent(KeyEventType type, KeyCode code)
{
LED3.toggle();
UiButton b = platform.ui.button(“btn1”);
if (code == KeyCode::Up)
{
b.setLocation(20, 20);
}
else if (code == KeyCode::Down)
{
b.setLocation(20, 70);
}
}

void onButtonEvent(hId id, ButtonEventType type)
{
static int cnt = 0;
if (id == “btn1”)
{
UiButton b = platform.ui.button(“btn1”);
if (type == ButtonEventType::Pressed)
{
b.setText(“pressed %u”, cnt++);
}
else
{
b.setText(“released %u”, cnt++);
}
LED3.toggle();
}
}

void cloudTask() {
sys.delay(5000); //necessary to boot CORE2-ROS (with ASUS Tinker Board), for CORE2 can be commented
platform.begin(&RPi);

platform.ui.setProjectId("@@@PROJECT_ID@@@");
platform.ui.configHandler = cfgHandler;
platform.ui.onKeyEvent = onKeyEvent;
platform.ui.onButtonEvent = onButtonEvent;
platform.ui.onConsoleWrite = onConsoleWrite;
// UiButton b = platform.ui.button("btn1");
hSens1.pin1.enableADC();

sys.taskCreate(send);

while(1) {
	sys.delay(500);
	LED3.toggle();
// platform.ui.label("l1").setText("uptime %u", (unsigned int)sys.getRefTime());
 v_int = hSens2.pin1.analogReadRaw();
 platform.ui.label("l1").setText("Sensor raw output = %d\r\n", v_int);
}

}

void hMain()
{
sys.taskCreate(cloudTask);

for (;;)
{
    sys.delay(500);
    LED1.toggle();
    if ( v_int > 1200 )
    {
    system ("/usr/bin/mpg123 /home/husarion/Sound/announce/front-left-sensor.mpg");
    }
}

}

2

Hi Jerry, I see several solutions to your problem:
a) connect ASUS Tinker Board using microUSB cable to CORE2 micro USB Serial port and write through it strings to the Tinker Board. On Tinker Board run a script that executes strings from CORE2 in a Linux shell.
b) The same as before, but you don’t send strings with Linux shell commands, but a single letter - for each received letter a script running on Linux will play another voice.
c) use ROS - Tinker Board will subscribe to a topic waiting for voice ID etc. CORE2 will publish to this topic. In ROS you have ready to use nodes that could be useful in your project.

3

Thanks! For fast prototyping I will use solution a. For the actual application I will use ROS. Sorry for the late reply. I’ve been busy getting my r/c aircraft ready for this years flying season.
One of the airplanes I’m building is 3d printed. 49" wingspan, Piper Pawnee Cub. Around 100 printed panels.
The project to a bit longer than expected. I started printing the parts in mid February. Plus motors, electronics and servos take several weeks when you order from Hobby King.

Thank you very much for the reply.