ArduinoControl Ardufho Contrvl 12 volt dc 120 volt red line is 12 volts, green l

Question

ArduinoControl Ardufho Contrvl 12 volt dc 120 volt red line is 12 volts, green line is 5 volts A power source ac power O mechanical relay 3:::::::::: black is ground 1. pin A3 is wired to the midpoint of the photocell, 2.2k circui 2. pin 0 is wired to the 1k wired to the base of the NPN trans. 3. pin 2 is wired to the left pushbutton. 4. pin 4 is wired to the right pushbutton. 5. pin 11 is wired to the Red LED 6. pin 13 is wired to the Green LED. The NPN transistor is set up as Collector Base Emitter from left to right 1. Which digital pins should be declared as INPUT? 11 2. which command declares pins as inputs? analogRead() pinMode() digitalRead() digitalWrite() 3. Where should the pins be declared? before void setup() void setup()

Explanation / Answer

1.

Input is connected to the base of the npn transistor which is through the resistor.

From the given data in the question pin 0 is connected to the base of the npn transistor.

Pin 0 is correct answer (a)

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