Hi, I want to use camera to recognize the direction of the arrow( only tow options of left or right ) and send the result to the arduino UNO. I use the template-matching example in software, but come across some problems. First, When I run the example, it will show "fb alloc collision". I change search.ex to search.ds, and it is Ok. Why this will happen? Second, I want to figure out how to recognize the arrow, since I try this example and it seems both left and right arrows are recognized to be right. I mean, I store a left arrow as a template, and the cam seems to recognize both right and left arrow as similar to the template. Is my understanding of this example wrong? Could you help me to figure out the mistakes?
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