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  2. Initial and terminal objects - Wikipedia

    en.wikipedia.org/wiki/Initial_and_terminal_objects

    In category theory, a branch of mathematics, an initial object of a category C is an object I in C such that for every object X in C, there exists precisely one morphism I → X. The dual notion is that of a terminal object (also called terminal element ): T is terminal if for every object X in C there exists exactly one morphism X → T .

  3. Arduino Uno - Wikipedia

    en.wikipedia.org/wiki/Arduino_UNO

    The Arduino Uno is an open-source microcontroller board based on the Microchip ATmega328P microcontroller (MCU) and developed by Arduino.cc and initially released in 2010. [2] [3] The microcontroller board is equipped with sets of digital and analog input/output (I/O) pins that may be interfaced to various expansion boards (shields) and other circuits. [1]

  4. List of Arduino boards and compatible systems - Wikipedia

    en.wikipedia.org/wiki/List_of_Arduino_boards_and...

    Arduino Uno compatible board powered by ATmega2560. D0/D1 can be changed to D19/D18. It enables to multiple serial communication. [132] A4/A5 are not connected to SDA/SCL same as Arduino Mega. Mega 2560 PRO (Embed) ATmega2560-16AU RobotDyn: Embed version of Mega 2560 CH340G/ATmega2560 - compatible with Arduino Mega 2560 board.

  5. Arduino - Wikipedia

    en.wikipedia.org/wiki/Arduino

    Arduino-compatible R3 Uno board with no Arduino logo. Arduino is open-source hardware. The hardware reference designs are distributed under a Creative Commons Attribution Share-Alike 2.5 license and are available on the Arduino website. Layout and production files for some versions of the hardware are also available.

  6. Marlin (firmware) - Wikipedia

    en.wikipedia.org/wiki/Marlin_(firmware)

    Marlin is open source firmware originally designed for RepRap project FDM (fused deposition modeling) 3D printers using the Arduino platform. [1] [2] [3]Once the firmware has been compiled from C++ source code; it is installed and runs on a mainboard with onboard components and general-purpose I/O pins to control and communicate with other components.

  7. USPS, FedEx and UPS holiday schedule: The ship-by deadlines ...

    www.aol.com/usps-fedex-ups-holiday-schedule...

    A FedEx driver loads packages into a delivery truck during Black Friday preparations in Washington, D.C., on November 26, 2024. UPS holiday schedule 2024.

  8. Single-board microcontroller - Wikipedia

    en.wikipedia.org/wiki/Single-board_microcontroller

    The Make Controller Kit with an Atmel AT91SAM7X256 microcontroller.. A single-board microcontroller is a microcontroller built onto a single printed circuit board.This board provides all of the circuitry necessary for a useful control task: a microprocessor, I/O circuits, a clock generator, RAM, stored program memory and any necessary support ICs.

  9. Pregnant Kylie Kelce Reveals NSFW Name She Almost Used for ...

    www.aol.com/pregnant-kylie-kelce-reveals-nsfw...

    Kylie Kelce is about to keep it real on a weekly basis as the host of a brand new upcoming digital series, Not Gonna Lie with Kylie Kelce. PEOPLE can exclusively reveal that the former athlete, 32 ...