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README.md
@@ -53,7 +53,30 @@ esptool.py --chip esp32s3 --port /dev/ttyACM0 --baud 921600 \
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### カメラ起動
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+`/dev/video2` は接続されたカメラデバイスに置き換えてください。
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+
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+```bash
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+ffplay -f v4l2 -input_format mjpeg -video_size 320x240 -framerate 30 /dev/video2
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+```
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+### 表情変更
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+笑顔 😊
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```bash
-ffplay -f v4l2 -input_format mjpeg -video_size 320x240 -framerate 30
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+v4l2-ctl -d /dev/video2 --set-ctrl brightness=250
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```
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+真顔
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+v4l2-ctl -d /dev/video2 --set-ctrl brightness=128
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+ガッカリ 😑
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+v4l2-ctl -d /dev/video2 --set-ctrl brightness=0
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