Where to Import a library into a given code
Digital pins can be used to
Analog pins can be used to
AnalogReadSerial:
What pins on the Arduino can be assigned as…
The Arduino uses what to assign analog values?
Examples of a standard Arduino library
The Arduino uses a structured programming language-what type
Channels of A/D conversion on the Arduino Uno
The Arduino correlates temperature readings with what
In: Electrical Engineering
Using MATLAB plot path loss prediction versus distance and log distance for a cellular system you are designing with the following assumptions: PCS frequency (1900 MHz), base height 20 m, mobile 2 m, suburban area, flat terrain with moderate tree density.
In: Electrical Engineering
QUESTION 2
Suppose you are creating a truth table with 3 inputs (a, b, and c) and 1 output (F). If an 'x' symbol indicates "don't care" (the value of the input does not effect the output), how many input combinations are covered by the single row of a truth table shown below?
a | b | c | F |
---|---|---|---|
x | 1 | x | 1 |
- |
1 |
|
- |
2 |
|
- |
3 |
|
- |
4 |
|
- |
None of the above |
QUESTION 3
Suppose you have a 4x1 multiplexer (MUX) whose inputs are shown below in a single row of a truth table. The inputs i0 - i3 are data inputs and s0 and s1 are selector bits. What Boolean value will the data output, d, be for this row?
i3 | i2 | i1 | i0 | s1 | s0 | d |
---|---|---|---|---|---|---|
1 | 1 | 0 | 1 | 0 | 1 | ? |
- |
0 |
|
- |
1 |
|
- |
2 |
|
- |
3 |
QUESTION 4
Suppose you have a 4x1 multiplexer (MUX) whose inputs are shown below in a single row of a truth table. The inputs i0 - i3 are data inputs and s0 and s1 are selector bits. What Boolean value will the data output, d, be for this row?
i3 | i2 | i1 | i0 | s1 | s0 | d |
---|---|---|---|---|---|---|
1 | 1 | 0 | 1 | 0 | 0 | ? |
- |
0 |
|
- |
1 |
|
- |
2 |
|
- |
3 |
QUESTION 5
Suppose you have a 4x1 multiplexer (MUX) whose inputs are shown below in a single row of a truth table. The inputs i0 - i3 are data inputs and s0 and s1 are selector bits. What Boolean value will the data output, d, be for this row?
i3 | i2 | i1 | i0 | s1 | s0 | d |
---|---|---|---|---|---|---|
0 | 0 | 0 | 1 | 1 | 0 | ? |
- |
0 |
|
- |
1 |
|
- |
2 |
|
- |
3 |
QUESTION 6
Suppose you have a 4x1 multiplexer (MUX) whose inputs are shown below in a single row of a truth table. The inputs i0 - i3 are data inputs and s0 and s1 are selector bits. What Boolean value will the data output, d, be for this row?
i3 | i2 | i1 | i0 | s1 | s0 | d |
---|---|---|---|---|---|---|
0 | 1 | 1 | 1 | 1 | 1 | ? |
- |
0 |
|
- |
1 |
|
- |
2 |
|
- |
3 |
QUESTION 7
Suppose you have a 4x2 priority encoder whose inputs are shown below in a single row of a truth table. The inputs d3 - d0 are inputs and e1 and e0 are output bits. What value will the data outputs, e1 and e0, be for this row (assume d3 is the highest priority input and results in the largest encoded value)?
d3 | d2 | d1 | d0 |
---|---|---|---|
0 | 1 | 1 | 1 |
- |
|
|||||
- |
|
|||||
- |
|
|||||
- |
|
QUESTION 8
Suppose you have a 4x2 priority encoder whose inputs are shown below in a single row of a truth table. The inputs d3 - d0 are inputs and e1 and e0 are output bits. What value will the data outputs, e1 and e0, be for this row (assume d3 is the highest priority input and results in the largest encoded value)?
d3 | d2 | d1 | d0 |
---|---|---|---|
0 | 0 | 0 | 1 |
- |
|
|||||
- |
|
|||||
- |
|
|||||
- |
|
QUESTION 9
Select all of the minterms that will be in the Boolean equation that describes the output, f, in the following truth table (a, b, and c are inputs).
a | b | c | f |
---|---|---|---|
0 | 0 | 0 | 1 |
0 | 0 | 1 | 0 |
0 | 1 | 0 | 0 |
0 | 1 | 1 | 1 |
1 | 0 | 0 | 1 |
1 | 0 | 1 | 0 |
1 | 1 | 0 | 0 |
1 | 1 | 1 | 1 |
- |
a'b'c' |
|
- |
a'b'c |
|
- |
a'bc' |
|
- |
a'bc |
|
- |
ab'c' |
|
- |
ab'c |
|
- |
abc' |
|
- |
abc |
In: Electrical Engineering
1.) How would you calibrate a vacuum pressure sensor – draw out a picture and use real devices (Name and model number) in your answer.
In: Electrical Engineering
Brief explanation for two stage amplifier I want a DC & AC analysis. (use 2N3904 and 2N3906)
In: Electrical Engineering
Microwave laboratory questions:
1) Give brief explanation about the Gunn diode, Gunn oscillator,
PIN modulator.
2) What is the common resonator type in the microwave
technology?
3) Why Gunn oscillator instead of cavity resonator?
In: Electrical Engineering
In: Electrical Engineering
a)Explain the statement 'The external RC network makes the system oscilliate' means.
b)Draw an oscilliating waveform
In: Electrical Engineering
1. Draw a simple circuit diagram of half wave specific with sinusoidal input signal define on V_in (t) = A*cos(wt^2*pi*f) with peak voltage of 10 V and frequency of 60 Hz.
2. Design the output voltage in terms of fourier transform.
3. Use matlab to plot the frequency spectrum of the rectified signal for magnitude and phase use load resistance as 1 kilo-ohm and cutoff frequency as 10 Hz.
4. Design a second order butterworth filter of a specific cosine peak viltage of 10V and frequency 60 Hz; sine linke to generate square wave signal.
In: Electrical Engineering
1(a). You are required to interface and write sample programme to test the operation of the following devices of the microcontroller board, namely (i) Push Buttons (ii) LEDs (iii) Analog input (using the potentiometer)
(b). A LED is to be interfaced to pin 3 of the microcontroller board. Please draw the necessary hardware circuit to show the connection. Write a sample software to glow the LED with ON time 1 sec and OFF time 1 sec.
(microcontroller is Arduino)
In: Electrical Engineering
A) Refer to the diagram on “Speed Control of a Shunt Wound DC Motor.
Suppose the no load voltage V = 90V, Ra + R1 = 4 ohms, Rsh + RF = 130 ohms, and the motor runs at a rated speed of 1000 RPM when IL = 4 amps. What is the back EMF VB in volts when the motor runs at IL = 6 amps?
Note: Type a 1-decimal number, rounded off to the nearest 0.1
B) How do you know that the compound motor provides good speed control at the no-load condition?
1) The torque speed curve is flat near zero torque. This means that small changes in load do not appreciably change the speed.
2) The torque speed curve is flat near zero torque. This means that large changes in load do not appreciably change the speed.
3) The torque speed curve has a large slope near zero torque. This means that large changes in load lead to very small changes in speed.
4) The compound motor runs at slow speeds when heavily loaded.
5) Items (1) and (4)
C) You are designing a new emergency brake mechanism for an automobile featuring one of the following DC motors. Which one would you choose?
1) Permanent magnet motor
2) Brushless motor
3) Servomotor
4) Compound wound motor
5) Torque motor
(D) Suppose you are building a machine where the timing sequence of two drive axes requires that they operate at precisely the same speed. What type of motor would you select: AC or DC and why?
1) You select identical DC motors because controlling frequency input gives simple and precise speed control
2) You select identical AC motors because highly accurate and reliable AC speed controllers can be bought for very cheap prices
3) You select identical DC motors because controlling voltage input gives simple and precise speed control
4) You select identical AC motors because the variance of torque and speed specs on NEMA specified motors is very small
5) It doesn’t matter whether you select an AC or a DC motor. The cost of supplying accurate speed control for either type of motor is the same.
In: Electrical Engineering
microstrip antenna shape 4 elements array antenna in matlab code for that.
if you know then only do or else leave for other.
Electrical engineering antenna
In: Electrical Engineering
Design a microstrip shape 4 elements array antenna in ansys.and also matlab code for that.
In: Electrical Engineering
You have researched skylights for use in a factory building. The research indicates that skylights can produce design illuminance within the building when the exterior illuminance reaches 4000 footcandles. The factory building measures 160-ft wide x 250-ft long. You require fifty footcandles as design illuminance. The size of the skylights will be 4-ft. wide x 8-ft. long. When new, it is estimated that each skylight will transmit about 50% of the light that hits it when the skylight is new. But the skylights get dirty so because of this, 35% of the admitted light will be further lost due to dirt buildup. Based on this given information, how many skylights will be necessary to accomplish the daylighting mode for this building?
In: Electrical Engineering
Design a system with one input called “Up” such that when “Up” equals 1, the machine counts 2, 3, 4, 5, 6, and repeat. If the “Up” input equals 0, the machine counts down 6, 5, 4, 3, 2, and repeat.
Show the State Transition Diagram, State Transition table, K-maps, and equations assuming JK flip flops and AND/OR/NOT combinational logic. Make sure to indicate on your State Transition Diagram what happens if the system initially is in one of the unused states (0, 1, or 7).
In: Electrical Engineering