5.- Design a microcontroller system to control a sprinkler controller that performs the following tasks. We assume that your microcontroller is clocked at 10 MHz and has a 16-bit free-running counter. The sprinkler controller system controls two different zones by turning the sprinklers within each zone on and off. To turn on the sprinklers in a zone, the controller needs to receive a 152.589 Hz PWM signal from its microcontroller. To turn off the sprinklers in the same zone, the controller needs to receive the PWM signal with a different duty cycle. A.-Your microcontroller needs to provide the PWM signal with a 10% duty cycle for 10ms to turn on the sprinklers in zone one

What is the fundamental frequency of the following variable speed drive signal? +Volts -Volts frequency 25 Hz frequency3KHz O a. None of the choices O b. 1500 Hertz O c. 50 Hertz O d. 3000 Hertz ○ e. 25 Hertz

Which statement out of the 5 is TRUE, Explain Why (50 Words) Pulse width modulation (PWM) can be used to control the speed of a DC motor. Whichstatement is correct?1. The ratio of the ON-times (supply voltage) and OFF-times (zero volt) send to theterminals of a DC motor is proportional to the average of the motor acceleration.2. PWM can be used to modulate the magnetic width of a brush-less AC motor.3. PWM modifies the pulses sent to a motor which in turn adjust the motor torqueproportionally to the pulse ratio.4. PWM can be used to adjust the average voltage delivered by a power source.This is achieved by rapidly switching the power signal on and off. Longer on-timescompared to the off times leads to a higher average power seen by the load, e.g., aDC motor.

1. Fill-in the blanks with the correct answer or chose the correct answer. the blue wire 1-3. Given a 3-wire NPN inductive sensor, the black wire is to be connected to the and the brown wire to the to the 4. After connecting the load to an NPN sensor, the other terminal of the load will be connected to the 5. If a PLC, serving as load, uses a sinking input card, it needs a (PNP/NPN) proximity sensor. 6. Capacitive, Inductive, Photo electric sensors are called proximity sensors because