Design an LED Roulette: Use LogicSim to design the circuit to turn on one of the...
Design an LED Roulette: Use LogicSim to design the circuit to turn on one of the ten (10) LEDs at a time and continues to cycle through all LEDs.
Design a circuit that safely turns an LED on when the lights in the room turn OFF. The LED should have a nearly constant output(current) while illuminated. Must use a single LED, a single 741 op amp and a light dependent resistor. Resistor value can be vary.
Problem: The purpose of this lab is to explore combinational logic design and switch/LED interfacing techniques Assignment: Design a digital system that will count the number of switches activated and display that count in binary using LEDS. An LED that isilluminated represents a 1' and an LED that is off represents a 0'. Note that you may utilize ANY chips in your part kits to implement this design. For this design, you will need to complete the following objectives: Interface...
Problem 10 Use the following circuit to answer the next four questions. Recall that the resistor enclosed in a circle with two arrows is a photoresistor/photocell. The photoresistor will be used to control the circuit's behavior. If the room is dark, the red LED will illuminate. In moderate light, the yellow LED will illuminate. In bright light, the green LED will illuminate. The reading from the photoresistor at pin AO is assigned to the integer variable, "photo_value. ☆ ☆ Red...
Design a circuit that uses a photo interrupter, 220 Ohm resistors, and a separate LED to turn off the LED if a light was received by the phototransistor in the photo-interrupter, and turn on the LED if the light is blocked. Draw the circuit below.
Using the circuit in this experiment as a guide, design a 4‐level LED voltage meter. The LEDs should come on sequentially when Vin = 2 V, 4 V, 6 V and 8 V respectively. Include a fully labeled schematic and all analytical derivations. +15 R1 Vin U1A Rlimiting } R2 am - 15 LED1 +15 U1B Rlimiting R3 - 15 LED2 5 Figure 5. TWO LED level meters.
Design an audio level indicator & amplifier circuit that lights up a different number of LEDs based the volume of the input signal and the circuit must turn on an LED when turned on and have at least 4 levels of audio indication using LEDs.The circuit must have a microphone and an aux input, easily switchable from one input to the other. The amplified sound output should measure 70 dB at 3 feet away from the speaker(Speaker= approx. 8ohm load)....
Q. 5(20 points) Design a transistor amplifier to supply a LED. The LED is required to turn "on" and "off " following the on/off signal from a digital output port of a microcomputer. VoFF = 0 V, Îmicroprocessor 5 mA,Vcc-5V, Vy (for the transistor) = 0.7 V, ? = 95, VCE at- Assume that the current needed to derive the LED is LED-10 mA. RB = 1 K ?, VON=5V: 0.2 VyLED (for the LED)-1.4 V, , Pmax-200 mW. Provide...
Design a circuit to have two lights turn off and a fan turn on. Do you expect the current through the lights and fan to be the same? Explain and include quantitative results. I have a tunnel with 2 sections. However, due to my cheapness , I only want the section I am in to be lit. When I enter the first section, I want to flip a switch and only have that light turn on. As I turn off...
Design a control circuit to energize 3 lights (red, amber, green) . The red light will turn on as soon as a Start button is pressed. Two seconds later, the amber light will turn on,. The green light will turn on 2 seconds after the amber light. After the green light is on for 2 ms, all lights should go off. This cycle should repeat until a STOP button is pressed. Draw the sequence bar chart for this circuit as...