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1. Serial Input: This is your data source. It could be a microcontroller or any other device that outputs data serially.
2. Shift Register: This is the key component for a serial in - parallel out configuration. A shift register takes in data serially (one bit at a time) and then outputs it in parallel. In Flux, you can use a generic shift register component and configure it for your specific needs.
3. Parallel Output: This is where the data from the shift register is outputted in parallel. It could be a set of LEDs, a digital-to-analog converter, or any other device that accepts parallel data.

1. Add a shift register to your schematic. You can find this in the Flux component library.
2. Connect the serial input to the data input (D) of the shift register.
3. Connect the clock input of your serial data source to the clock input (CLK) of the shift register. This synchronizes the data transfer.
4. The parallel outputs (Q0, Q1, Q2, etc.) of the shift register are your parallel outputs.

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1. Connect the VCC to the VCC pin of the 74HC595 (pin 16).
2. Connect the GND pin of the 74HC595 (pin 8) to the ground of your circuit.
3. Connect the Serial Data Input (pin 14) to your data source. This would be where your bit comes from. You could use a microcontroller to output a logic high (VCC) for a 1 bit or a logic low (GND) for a 0 bit.
4. Connect the Shift Register Clock pin (pin 11) to a clock source. This clock signal is what will control the shifting of the data. On each rising edge of the clock signal, the data will shift one place to the right.
5. Connect the Storage Register Clock pin (pin 12) to the same clock source. This will update the output on each rising edge of the clock signal.
6. The outputs of the shift register will be at pins Q0 to Q7 (pins 15, 1, 2, 3, 4, 5, 6, 7 respectively). You can connect these to LEDs or other output devices to visualize the shifting bit.

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1. Use a push-button switch connected to the SER (Serial Input) pin (pin 14) of the 74HC595. One end of the switch is connected to VCC (for logic HIGH) and the other end is connected to GND through a pull-down resistor. This way, when the button is pressed, a logic HIGH is sent to the 74HC595, and when the button is not pressed, a logic LOW is sent due to the pull-down resistor.
2. Use another push-button switch for the SRCLK (Shift Register Clock) pin (pin 11). This button will be used to shift the data (either logic HIGH or LOW from the first push-button) into the shift register.

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• If the 74HC IC can operate at 3.3V or 1.8V
• If the total current consumption of the 74HC IC (including all its inputs and outputs) is under 10mA.

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1. Choose the right components: You'll need a shift register and a set of multiplexers. The shift register will hold the data to be shifted, and the multiplexers will control the shifting operation. The number of bits in your data will determine the size of your shift register and the number of multiplexers you need.
2. Connect the shift register: Load the data into the shift register. The shift register will allow you to shift the data left or right.
3. Set up the multiplexers: Connect the outputs of the shift register to the inputs of the multiplexers. The multiplexers will select which bit to output based on the shift amount.
4. Control the shift: Use the select lines of the multiplexers to control the amount of shift. For example, if you want to shift the data two places to the right, you would set the select lines to '10' (assuming binary encoding).
5. Output the result: The output of the multiplexers will be your shifted data.

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1. Choose a 2-to-1 MUX: A 2-to-1 MUX has two inputs, one select line, and one output. For example, you can use the 74HC157, a commonly used quad 2-to-1 MUX IC.
2. Connect the Data: Connect your bit to the first input of the MUX (let's call this input A). Connect the second input of the MUX (let's call this input B) to a logical 0 (this can be your ground).
3. Connect the Select Line: Connect the select line to the control signal that will determine whether a shift operation is needed. When the select line is 1, the MUX will pass input A (your bit) to the output, effectively performing a "0 shift". When the select line is 0, the MUX will pass input B (logical 0) to the output, effectively performing a "1 bit right shift" operation.

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1. Connect the VCC and GND of both the 555 Timer and the shift register to your power supply, IC1 VOUT in this case.
2. Configure the 555 Timer in Astable mode by connecting pins 2 and 6 together and also to a capacitor (C1) which goes to GND. Connect a resistor (R1) between VCC and pin 7. Connect another resistor (R2) between pin 7 and the junction of pins 2 and 6. Pin 3 will output a square wave which will serve as the clock for the shift register.
3. Connect the clock input of the shift register (usually pin 11 for a 74HC595) to the output of the 555 Timer (pin 3).
4. You can now input your 8-bit data to the shift register and it will be shifted out on each clock pulse from the 555 Timer.

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1. 555 Timer: Configure the 555 Timer in astable mode to generate a clock signal. The frequency of the clock signal will determine the speed of shifting.
2. Shift Register: A 1-bit shift register can be implemented using a D flip-flop. Connect the output of the 555 Timer to the clock input of the D flip-flop.
3. Power Supply: You mentioned that you would use the VOUT pin of IC1 (NT3H2111W0FTT) as your power supply. The NT3H2111W0FTT has an output voltage of 1.8V to 3.3V. Make sure the 555 timer and the shift register you choose can operate within this voltage range.

    VOUT (IC1)
      │
      │
    ┌─┴─┐ 555 Timer
    │   │ Astable
    └─┬─┘
      ├───> Clock input (Shift Register)
      │
      │
    Ground

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1. Clock Source: You'll need a clock source to provide the timing signal for data shifting. This could be a simple oscillator circuit or a clock signal from a microcontroller.
2. Data (DS) Pin: To continuously shift 1 bit, connect the DS (data serial) pin of 74HC_HCT595 to VCC (for shifting '1') or Ground (for shifting '0').
3. Shift Register Clock (SH_CP) Pin: Connect the SH_CP pin to the clock source. This pin is responsible for shifting the data on the rising edge of the clock pulse.
4. Storage Register Clock (ST_CP) Pin: This pin is used to move data from the shift register to the storage register. You'll need to setup a pulse (ideally in sync with your clock source) that triggers after 8 shift operations (since 74HC_HCT595 is an 8-bit shift register).
5. Output Enable (OE) Pin: Connect the OE pin to ground to enable the outputs.
6. Master Reset (MR) Pin: Connect the MR pin to VCC to prevent the register from resetting.

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1. NFC Phone: For the purpose of energy harvesting and also for the URL transfer, an NFC-enabled phone is essential.
2. IC1 (NTAG I²C plus chip, NT3H2111/NT3H2211): The NTAG I²C plus chip is the main component that you will need. It has an NFC interface and also supports energy harvesting[1][2][3].
3. NFC Antenna: An NFC antenna connected to IC1. This antenna will be used to create the NFC field necessary for energy harvesting and data transmission.

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1. IC1:VSS is connected to the LED cathode (LED9:K) and one terminal of the capacitor (C16:P1), suggesting a ground connection.
2. IC1:VOUT and IC1:VCC are connected to the other terminal of the capacitor (C16:P2) and one terminal of the resistor (R5:P2), suggesting a supply voltage connection.
3. IC1:LA and IC1:LB are connected to the capacitor C15, which might suggest a connection to an NFC antenna but it's not clear without more context.
4. The LED9 connections suggest it could be powered by the harvested energy, with the anode (LED9:A) connected to one terminal of the resistor (R5:P1).

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1. RF Field Strength: A stronger RF field from the NFC phone will result in more energy for harvesting. An NFC phone typically generates a field strong enough for energy harvesting, but the field strength can vary between different phone models.
2. Antenna Design: The design and quality of the NFC antenna connected to the IC1 also affect the harvested energy. A well-designed NFC antenna that is properly tuned to the NFC frequency (13.56 MHz) will harvest more energy.
3. Distance: The closer the NFC phone is to the NFC antenna, the more energy can be harvested. For optimal energy harvesting, the NFC phone should be very close to the antenna (generally within a few centimeters).
4. Load: The actual current you can draw also depends on the load connected to the VOUT pin. Drawing more current will cause the voltage on VOUT to drop.
5. Circuit Efficiency: The efficiency of your circuit, including losses in the NFC antenna, the NT3H2111W0FTT IC, and any load connected to VOUT, will also affect how much current you can draw.

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1. Microcontrollers: Many low-power microcontrollers, like those from the MSP430 family by Texas Instruments or the ATtiny series by Atmel, can operate on significantly less than 5mA, especially if they're in a low-power mode.
2. LEDs: Small LEDs, particularly those used as indicators, often draw less than 5mA. For example, a standard 0603 SMD LED typically draws around 2-20mA.
3. Sensors: Some low-power sensors, such as temperature, humidity, pressure, and ambient light sensors, can operate within this current range.
4. RFID/NFC systems: The power requirements for passive RFID/NFC systems can be quite low, often well within the 5mA range.
5. Small Audio Devices: Piezo buzzers or very small speakers can operate within this range, but the volume would be limited.
6. Digital Logic: Small scale digital logic circuits, such as those built with CMOS technology, can also operate with this amount of current, depending on the complexity of the logic.
7. Clocks: Some real-time clock (RTC) modules can run on less than 5mA.

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1. Identify the part of the circuit where you want to limit the current. This could be at the power supply input or at the load.
2. Add a current limiting resistor: This is the simplest method. The value of the resistor can be calculated using Ohm's law: R = V/I, where V is the voltage drop across the resistor and I is the desired current limit. Note that the resistor will dissipate power, which is given by P = I^2 * R, so ensure it can handle the power.
3. Use a current limiting circuit: For more complex requirements, you might need a current limiting circuit. This could be a simple series transistor circuit, a linear regulator in current limiting mode, or a more complex current limit IC.
4. Simulate the circuit: Once you've added the current limiting component or circuit, you can simulate it in Flux to verify that it works as expected. Remember, all parts in your schematic must have a simulation model for the simulation to run. If a part doesn't have a simulation model, you'll need to create one or ask the part owner to do so.

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1. Microcontroller: A small, low-power microcontroller like the ATtiny85 could be used to control other components on the card.
2. LEDs: Small surface-mount LEDs can add visual interest to the card. You could use them to create patterns or display simple animations.
3. Capacitive Touch Sensors: These can be used to interact with the card. For example, touching a certain part of the card could trigger an LED animation.
4. Battery: A small coin cell battery can be used to power the card.
5. Resistors/Capacitors: These will be needed for basic circuit functionality and to ensure stable operation of the microcontroller and LEDs.
6. Optional - Communication Module: If you want the card to have some interactive or smart features, you could add a small Bluetooth or NFC module.

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