[Michael]

I’ve not used Carlos’ code, so I can’t really help you there. Make sure you have the serial communication working in a primitive way first, before trying to send captured frames.

The problem with recording the video is that you can’t do it fast enough. There are 60 frames per second, and 1536 bytes per frame. You just can’t write to an SD card that fast when most of the processing time is being spent with the video processing. Sorry, everyone wants to record video, but that’s not going to happen on a microcontroller that costs $2.

[Michael]

I’m sorry, I just don’t know what problem you are having. I didn’t write NewSoftSerial.

This is a forum for the Video Experimenter shield. Are you having problems with a Video Experimenter?

[Michael]

It is an Arduino library. It is to be used with Arduino.

[Michael]

The value of dataCaptureStart is simply used to adjust the timing so that you can find the right place to sample the closed captioning pixels. The white pixels represent a bit pattern of two ASCII characters. This article explains how it works:

http://nootropicdesign.com/projectlab/2011/03/20/decoding-closed-captioning/

Just try different values for dataCaptureStart to see if you can find the data. It is very difficult.

[Michael]

It depends on what type of signal your satellite receiver sends to your TV. PAL or NTSC.

[Michael]

Are you decoding closed caption data from an NTSC broadcast? Are you in the United States or Canada?

[Michael]

You can increase 2 or 4 or whatever. You just need to try different values so the closed caption info is aligned right. 310 worked for me.
You are in an NTSC country, right? This doesn’t work with PAL.

[Michael]

You need to install NewSoftSerial correctly as a library.

libraries

|

+ NewSoftSerial

|

+- NewSoftSerial.h

+- NewSoftSerial.cpp

[Michael]

Hi ahmad,

There’s no rule about what the value should be. I found 310 to work, but you should try values between 100 and 1000. You could connect a potentiometer to adjust the value, perhaps?

[Michael]

I guess I don’t know why you can’t compile the library. The directory ‘NewSoftSerial’ should be in the directory ‘libraries’ in your Arduino sketchbook. I don’t know which program you are trying to compile….are you including the header file?

#include 

[Michael]

Are you sure you installed the library in the correct place and restarted Arduino?

[Michael]

Good to hear. Those tiny solder bridges will get you every time!

[Michael]

Sorry to hear that — perhaps there is a bad component. We will contact you by email to work out an exchange.

[Michael]

You need to install the Digit Shield library. It’s documented on the product page:

http://nootropicdesign.com/digitshield/

Download it and install it in the libraries folder in your sketchbook.

libraries

|

+- DigitShield

|

+- DigitShield.cpp

+- DigitShield.h

+- examples

[Michael]

Glad it works! Enjoy.

[Author]

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