DC motor control device and game machine

A game machine, comprising:

• a game machine main body;
• a movable body movably disposed on a front surface of the game machine main body;
• a DC motor that drives the movable body;
• a rotational angle sensor that outputs a detection signal every time the DC motor rotates by a certain rotational angle;
• a DC motor control device that controls the DC motor;
• and
• a performance controller that controls a performance in accordance with a gaming state,
• wherein, the performance controller generates a control command for specifying a target rotation amount of the DC motor corresponding to a moving distance of the movable body from a current position to a movement destination in accordance with the gaming state, and transmits the control command to the DC motor control device, and
• wherein the DC motor control device includes:
• a communication circuit configured to receive the control command;
• a sensor interface configured to receive the detection signal from the rotational angle sensor;
• a step counter that outputs a count signal every time the detection signal has been received a certain number of times;
• a controller that, based on the number of times the count signal is received, determines a step count indicating the total amount of rotation from the start of the rotation of the DC motor, and generates a control signal that controls the DC motor in accordance with the step count and the target rotation amount;
• and
• a drive signal generation circuit that generates a drive signal that rotates the DC motor in accordance with the control signal and outputs the drive signal.