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  • How to Build an L293D Motor Board Controller for Arduino

    I have made one following you tutorial but my L293D ICS heats up quickly.Is it a normal behaviour? Or should i add something else to limit the current flow.I used L293D single Chip to control 2 DC motors controlled with Android, Want to make 4WD now but its not working.I am using Arduino UNO.You have (in this tuto) connected 1,16,9 pin direct to arduino 5v pin.I think 1,9 must be connected to PWM(correct me if i am wrong) for varying speed control. Instead we can connect 2,7,10,14 to pwm but for 2 L293D there is no enough PWM pins in Arduino UNO(for varying speed).

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