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<h1 id="best-practice">Best Practice</h1>
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<p>This page shows some best practices:</p>
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<h2 id="camera-placement">Camera Placement</h2>
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<ul>
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<li>Move the Camera as close as possible (~4cm), this will help get rid of reflections.
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-> focus can be adjusted by turning the outer black ring of the camera.</li>
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<li>If the LED reflections are too strong, put tape over the LED to diffuse the light</li>
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<li>Change the ImageSize to QVGA under "Expert mode" configuration when close enough, this will be faster and is often good enough for digital recognition.</li>
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</ul>
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<h2 id="reflections">Reflections</h2>
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<ul>
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<li>Try to get rid of the reflections by rotating the camera, so that the reflections are at positions, where no number is.</li>
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<li>By using the external LED option, you can place WS2812 LEDs freely away from the main axis.</li>
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<li>Users report, that a handy cover foil could also help</li>
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</ul>
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<h2 id="post-processing">Post-processing</h2>
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<ul>
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<li>Filter out the Number "9", as "3" will often be misread for a "9" and void every number between 3 and 9 due to it being negative flow.</li>
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<li>Split the readings into two, while the decimal numbers might move to fast to be recognized, at least the slower moving part will produce a correct reading.
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-> keep in mind that the offset needs to be adjusted, a.e if you have a comma reading of "3", it needs to become "0.3". This can be done wherever the data ends up being sent, like home assistant using sensor templates.</li>
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<li>If you are using a low resolution and only digital mode, processing can often be done in <1 minute. Check the logs to confirm how fast it is and then set the interval accordingly under "Expert mode" in configuration, as the normal mode will lock you to 3+ minutes.</li>
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