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how to simulate trafic light one way using one hot one coding.

use a timer
2y
@copilot use only 3 states. Green then Yellow then Red then it returnes to grren
2y
From your message, it sounds like you're interested in constructing a circuit that cycles through three states (green, yellow, red) and then returns to the green state. A simple way to achieve this is with a microcontroller, e.g. an Arduino, and a tri-color LED, or three separate LEDs (Green, Yellow, Red).
However, if you're looking for a more analog design, you could use a 555 timer in astable mode, a counter, and a decoder to drive the LEDs.
Let me know, which method would you prefer to use: microcontroller-based or a 555 timer-based circuit? By selecting one of these methods, I can give you clearer instructions on how to add the components to the Flux project.
2y
Sure, let's design a simple timing circuit using a 555 Timer, a CD4017 Decade Counter, and a 74HC238 3-to-8 line decoder to control three distinct LEDs (green, yellow, red).
Here are the components you will need to add to your project in Flux:
  • 1 x NE555 Timer IC
  • 1 x CD4017 Decade Counter IC
  • 1 x 74HC238 3-to-8 line Decoder IC
  • 3 x LEDs (1 green, 1 yellow, 1 red)
  • 3 x 220Ω resistors for the LEDs
  • 1 x 10KΩ resistor
  • 1 x 100uF capacitor
  • Connection wires
Once you added these components to your Flux project, here's a simple way to wire them:
Note: The designator will follow the pattern "Xn" for ICs "Rn" for resistors, "Cn" for capacitors, and "LEDn" for LEDs.
  1. Connect pin 8 of the 555 timer (X1) to Vcc and pin 1 to ground.
  2. Connect pin 2 of X1 to pin 6 of X1.
  3. Place C1 between pin 2 of X1 and ground.
  4. Place R1 between pin 7 of X1 and Vcc.
  5. Connect pin 3 of X1 to pin 14 (Clock input) of the CD4017 (X2).
  6. Ground pin 8 and connect pin 16 of X2 to Vcc.
  7. Connect pins 2, 3, and 4 (the Q outputs) of X2 to - respectively - pins 4, 5, and 6 of the 74HC238 (X3).
  8. Connect pin 16 (Vcc) of X3 to Vcc, and pins 6, 7, and 8 to ground.
  9. Connect the anodes of the LEDs (LED1, LED2, and LED3) to pins 9, 10, and 11 of X3 through - respectively - resistors R2, R3, and R4. Connect the LED cathodes to Ground.
Remember to use a power supply that matches the requirements of your components. A supply of 5V to 9V should be suitable in most cases.
These instructions should create a circuit that sequences through each LED in continuous rotation: Green, then Yellow, then Red, then back to Green.
These assumptions are made based on standard component values and may need to be updated based on your specific requirements. Do let me know if you have any questions or if there's anything more you'd like to add.
2y
@copilot use a timer
2y
@copilot how to simulate trafic light one way using one hot one coding.
2y
To simulate a traffic light using one-hot encoding, we'll need a state machine circuit that will cycle through the four states of a standard traffic light:
  1. Red
  2. Yellow transitioning to Green
  3. Green
  4. Yellow transitioning to Red
Each of these stages will correspond to one-hot coding value. So, if we assign the states bits as follows:
  • Red: 1000
  • Yellow to Green: 0100
  • Green: 0010
  • Yellow to Red: 0001
We can design our circuit using D flip-flops and logic gates to transition through these stages. Here's our assumption; we assume that clock pulses are used to change states.
Our digital logic circuit can be set up using Flux as follows:
Components needed
  • Four D-type Flip-Flops.
  • Several logic gates (AND, OR) for generating the state changing conditions.
  • Three LEDs (Red, Yellow, Green) to represent the traffic light.
Connection Details:
Note: The naming convention Qn corresponds to each flip flop state and the LED colour it controls.
  1. Connect the input of D-flip flop (Q0) to the output of Q3.
  2. Connect Q0 to D1. This will be a direct connection for transition to the next state.
  3. Use an AND gate for the next connections. Connect Q1 and Q0 as inputs to the AND gate, and then connect the output of the AND gate to D2.
  4. For the final transition, connect Q2 and Q0 as inputs to another AND gate, and then connect the output of this AND gate to D3.
  5. Connect the reset pins of all D flip flops (active low) together as they all have to switch simultaneously.
  6. Connect the output of each D flip flop (namely Q0, Q1, Q2 and Q3) to the LED corresponding to each state of the traffic light(Assuming Q0->Red, Q2->Yellow, Q1 and Q3 ->Green).
Please note that the transition implementation might vary depending on the exact model of D flip-flops and the logic used. So, adapt this design to fit with the specific components you are using. The duration for which each light displays can be controlled by the frequency of the clock signal coming in. Higher frequency (more frequent clock pulses) would change the states faster and vice versa.
2y
1


  • Ground
    A common return path for electric current. Commonly known as ground.
  • Net Portal
    Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
  • Power Net Portal
    Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #power
  • Generic Resistor
    A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibrary
  • Generic Capacitor
    A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF 10pF 100pF 1000pF 0.01uF 0.1uF 1.0uF 10uF 100uF 1000uF 10,000uF 1.1pF 11pF 110pF 1100pF 1.2pF 12pF 120pF 1200pF 1.3pF 13pF 130pF 1300pF 1.5pF 15pF 150pF 1500pF 0.015uF 0.15uF 1.5uF 15uF 150uF 1500uF 1.6pF 16pF 160pF 1600pF 1.8pF 18pF 180pF 1800pF 2.0pF 20pF 200pF 2000pF 2.2pF 22pF 20pF 2200pF 0.022uF 0.22uF 2.2uF 22uF 220uF 2200uF 2.4pF 24pF 240pF 2400pF 2.7pF 27pF 270pF 2700pF 3.0pF 30pF 300pF 3000pF 3.3pF 33pF 330pF 3300pF 0.033uF 0.33uF 3.3uF 33uF 330uF 3300uF 3.6pF 36pF 360pF 3600pF 3.9pF 39pF 390pF 3900pF 4.3pF 43pF 430pF 4300pF 4.7pF 47pF 470pF 4700pF 0.047uF 0.47uF 4.7uF 47uF 470uF 4700uF 5.1pF 51pF 510pF 5100pF 5.6pF 56pF 560pF 5600pF 6.2pF 62pF 620pF 6200pF 6.8pF 68pF 680pF 6800pF 0.068uF 0.68uF 6.8uF 68uF 680uF 6800uF 7.5pF 75pF 750pF 7500pF 8.2pF 82pF 820pF 8200pF 9.1pF 91pF 910pF 9100pF #generics #CommonPartsLibrary
  • Generic Inductor
    A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #generics
  • Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
  • RMCF0805JT47K0
    47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
  • 875105359001
    10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
  • CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
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