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After construction and pre-flight test, the module was connected to an Arduino board and measured the rotation per minute (rpm) rate of a geared robo motor (150rpm@5V) with the help of a home-made ...
Low-Cost Circuit Controls PM DC-Motor Speed Sept. 29, 2003 The motor-speed-control circuit in the figure shows an SG3524 pulse-width-modulation (PWM) IC, U2, driving the high side of a motor ...
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