The setup that will allow us to take and store photos using Arduino. Let’s start with a simple setup that will allow us to do this.įigure 1. Since our ultimate goal is to take a photo, store it on a SD card and then send it somewhere. Taking picturesīefore we start decoding JPEG photos, first we have to take the photos. Now that we know why we’re doing this, let’s take a look at how we can approach this method. Granted, it’s not the same picture we originally started with, but it still carries most of the original information and is still “human-readable”.
If some of the data gets corrupted or lost during the transmission, we will still have an image, only with the corrupted data somehow discolored, misplaced, or simply missing. However, when we decode the JPEG into bitmap, and then send the actual pixels, we risk nothing. When that happens, we most likely won’t be able to restore the original photo from the corrupted data. After all, there’s an SD module listed in the hardware requirements above, and you’d ask “Can we just store the photo on the SD card as a photo.jpeg file?” Sure, that is actually an important part of the entire process, but try to look at this from a different perspective: What if we want to send that photo somewhere using a slow, somewhat unreliable connection? If we simply chopped up the JPEG photo into packages and send them via a slow connection, we risk that some of them might get corrupted, while others may get lost entirely.
Arduino camera vc0706 how to#
In this article, we’ll learn how to take JPEG photo using an Arduino-controlled camera, turn the photo into lots and lots of pixels, and to transmit all of them via serial port to our PC – or wherever we like! Hardware
When most people hear the term “JPEG decoding,” they will usually assume that it’s something really difficult, something that requires lots of processing power and complicated mathematics, something that is impossible – or at least impractical – on relatively cheap and slow 8-bit microcontroller platforms like the Arduino.
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