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Adorable Emerald Teleporter
Properties
Properties describe core aspects of the project.
Pricing & Availability
Distributor | Qty 1 |
|---|---|
Digi-Key | $51.58–$51.89 |
LCSC | $4.55 |
Mouser | $51.83 |
Controls
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PC6/PCINT14/
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Digital I/O Pins (RXD, TXD, INT0, INT1, etc.): For unconnected digital I/O pins that you plan to use as inputs, it's a good practice to use pull-up or pull-down resistors to ensure they don't float and pick up noise. However, if these I/O pins are not utilized and remain unconnected in your design, they can be left as is unless your specific application suffers from noise issues.
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ADC Pins (ADC0 to ADC5): Analog input pins, when not in use, don't necessarily require pull-up or pull-down resistors. However, if an analog input is used, it’s directly connected to the signal of interest.
Arduino Mega (A1)RESET(Pin 1): The ~RESET pin is often connected to a pull-up resistor to avoid unintentional resets due to noise. A typical value used is 10kΩ to VCC.-
Digital I/O Pins (Various Designations): Similar to the ATmega328P, any unconnected Digital I/O pins that you intend to use as inputs should be connected to a pull-up or pull-down resistor to prevent floating inputs. The MCU on the Arduino Mega has internal pull-up resistors that can be enabled via software for digital pins.
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Analog Pins (AD0 to AD15): Analog pins do not require pull-up or pull-down resistors when not in use. However, if used, connect them directly to the analog signal.
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SDA (Pin 85) and SCL (Pin 86): These are the I²C bus lines and typically require pull-up resistors to function correctly. Common values range from 2.2kΩ to 10kΩ, depending on the bus speed and capacitance.
Conclusion