send values to serial port

[luisantunespena]

Hello,
I'm using the example multi_color_blob_tracking_1.py and would like to send the main values frame size for red, green and blue to a serial port. The idea is to communicate with another program called csound (an audio processing software) which can receive serial data.
Which functions do I need for this?
Thank you.
Luis

[kwagyeman]

Hi, for serial port sending please see the pixy emulation examples. They show off how to send data via the serial port.

[luisantunespena]

Thanks for your answer. I was wondering if once the OpenMV Cam is connected via USB to the computer, if there is a simpler way to grab data from the camera. If so, could you give me an example? Thank you in advance.

[kwagyeman]

Hi, literally just use the print() method on objects. The output will then appear in the terminal in OpenMV IDE. A y program on a the computer can open the OpenMV Cam's serial port and read the print output while the script is running.

[luisantunespena]

Thanks for your kind reply! I'll try that.
Luis

[kwagyeman]

Note you cannot use OpenMV IDE with the camera if another program is reading the serial port at the same time. To make your script permanent on the OpenMV Cam use Tools -> Save script to the OpenMV Cam.

[luisantunespena]

That's it! Thank you very, very much! Now csound is receiving data from OpenMV!
And thanks for creating this wonderful project!
Luis