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  2. Reference designator - Wikipedia

    en.wikipedia.org/wiki/Reference_designator

    A reference designator unambiguously identifies the location of a component within an electrical schematic or on a printed circuit board.The reference designator usually consists of one or two letters followed by a number, e.g. C3, D1, R4, U15.

  3. International Blinking Pattern Interpretation - Wikipedia

    en.wikipedia.org/wiki/International_Blinking...

    The International Blinking Pattern Interpretation (IBPI) is an internal computer hardware standard. It defines two items: How SGPIO is interpreted into states for drives or slots on a backplane. How light emitting diodes (LEDs) on a backplane should represent these states.

  4. Arduino - Wikipedia

    en.wikipedia.org/wiki/Arduino

    Power LED (red) and User LED (green) attached to pin 13 on an Arduino-compatible board Most Arduino boards contain a light-emitting diode (LED) and a current-limiting resistor connected between pin 13 and ground, which is a convenient feature for many tests and program functions. [ 76 ]

  5. Light-emitting diode - Wikipedia

    en.wikipedia.org/wiki/Light-emitting_diode

    A single or a few LED junctions may be packed in one miniature device for use as an indicator or pilot lamp. An LED array may include controlling circuits within the same package, which may range from a simple resistor, blinking or color changing control, or an addressable controller for RGB devices. Higher-powered white-emitting devices will ...

  6. LED circuit - Wikipedia

    en.wikipedia.org/wiki/LED_circuit

    Simple LED (Light Emitting Diode) circuit diagram. In electronics, an LED circuit or LED driver is an electrical circuit used to power a light-emitting diode (LED). The circuit must provide sufficient current to light the LED at the required brightness, but must limit the current to prevent damaging the LED.

  7. Opto-isolator - Wikipedia

    en.wikipedia.org/wiki/Opto-isolator

    Schematic diagram of an opto-isolator showing source of light (LED) on the left, dielectric barrier in the center, and sensor (phototransistor) on the right [note 1]. An opto-isolator (also called an optocoupler, photocoupler, or optical isolator) is an electronic component that transfers electrical signals between two isolated circuits by using light. [1]

  8. Here's what Kash Patel's former colleagues are saying about him

    www.aol.com/heres-kash-patels-former-colleagues...

    Patel also was involved in efforts to bring some of the most-wanted terrorists to the U.S. for prosecution, and worked on Trump administration efforts to return dozens of U.S. hostages back home.

  9. ATmega328 - Wikipedia

    en.wikipedia.org/wiki/ATmega328

    ATmega328 is commonly used in many projects and autonomous systems where a simple, low-powered, low-cost micro-controller is needed. Perhaps the most common implementation of this chip is on the popular Arduino development platform, namely the Arduino Uno, Arduino Pro Mini [4] and Arduino Nano models.