Question: Question 3: [20 points] Consider using an Arduino, a transistor and an optocoupler to control a 12V,700mADC-motor. The transistor Beta(hfe) varies between 40 and 200,VBE=0.8V

Question 3: [20 points] Consider using an Arduino, a transistor and an optocoupler to control a 12V,700mADC-motor. The transistor Beta(hfe) varies between 40 and 200,VBE=0.8V and VCE=0.3V (at saturation). 1- Write a portion of code to turn the motor ON. 2- Assume the voltage between point 3 and 4V34=2V, what is the value of R1? 4- Explain briefly, why should we use the diode D1

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