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DC Motor PWM Speed Control and LED RPM Gauge with Arduino UNO R3

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I used an Arduino for reading analog value of potenciometer and controlling the gate pin voltage of transistor that drives the DC motor. I can send codes if you want. Here is the board conections by Fritzing. org https://plus.google.com/u/0/110709151591253093074/posts/GUV9KP9Qjaz?pid=6093108859556851154&oid=110709151591253093074
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