Arduino is an open-source hardware and software company that designs and manufactures single-board microcontrollers and kits for building digital devices and interactive objects. Arduino boards are available commercially or as DIY kits and use open-source licenses. They have been used to create projects like handheld game consoles, MIDI controllers, drone software, data loggers, vehicle chargers, and more. The main components of an Arduino board include a power source, pins for inputs and outputs, a reset button, indicator lights, an integrated circuit, and voltage regulator.

1. ARDUINO

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WHAT IS IT?
Open-source hardware and software company, project
and user community that designs and manufactures
single-board microcontrollers and microcontroller kits for
building digital devices and interactive objects that can
sense and control both physically and digitally.

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PRODUCTS
● Its products are licensed under the GNU
Lesser General Public License (LGPL) or
the GNU General Public License (GPL),
permitting the manufacture of Arduino
boards and software distribution by
anyone. Arduino boards are available
commercially in preassembled form or as
do-it-yourself (DIY) kits.

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APPLICATIONS
● -Arduboy, a handheld game console based on Arduino.
● -Arduinome, a MIDI controller device that mimics the Monome.
● -Ardupilot, drone software and hardware.
● -ArduSat, a cubesat based on Arduino.
● -C-STEM Studio, a platform for hands-on integrated learning of computing,
science, technology, engineering, and mathematics with robotics.
● -Data loggers for scientific research.
● -OBDuino, a trip computer that uses the on-board diagnostics interface
found in most modern cars.
● -OpenEVSE an open-source electric vehicle charger.
● -XOD, a visual programming language for Arduino.

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MAIN PARTS
● Power (USB / Barrel Jack)
● Pins (5V, 3.3V, GND, Analog, Digital, PWM, AREF)
● Reset Button.
● Power LED Indicator.
● TX RX LEDs.
● Main IC.
● Voltage Regulator.
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