![]() It contains everything needed to support the microcontroller simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started. It has 54 digital input/output pins (of which 14 can be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. The Arduino Mega 2560 Microcontroller Rev3 is a microcontroller board based on the ATmega2560. 256 KB of Flash Memory, 8 KB of SRAM, and 4kB of EEPROM.54 digital I/O Pins and 16 analog I/O Pins.Open Source design based on the larger ATmega2560.User friendly USB programmable Arduino Microcontroller.Miscellaneous Microcontroller Accessories.Gears, Belts, Pulleys, Tracks, Sprockets & Chains.Note that these pins are not in the same location as the TWI pins on the Duemilanove or Diecimila. Support TWI communication using the Wire library. When the pin is HIGH value, the LED is on, when the pin is LOW, it's off. There is a built-in LED connected to digital pin 13. The SPI pins are also broken out on the ICSP header, which is physically compatible with the Uno, Duemilanove and Diecimila. These pins support SPI communication using the SPI library. Provide 8-bit PWM output with the analogWrite() function. See the attachInterrupt() function for details. These pins can be configured to trigger an interrupt on a low value, a rising or falling edge, or a change in value. Pins 0 and 1 are also connected to the corresponding pins of the ATmega16U2 USB-to-TTL Serial chip.Ġ), 3 (interrupt 1), 18 (interrupt 5), 19 (interrupt 4), 20 (interruptģ), and 21 (interrupt 2). Used to receive (RX) and transmit (TX) TTL serial data. Maximum of 40 mA and has an internal pull-up resistor (disconnected byĭefault) of 20-50 kOhms. Voltage translators on the outputs for working with the 5V or 3.3V.Ĭlick to view the Atmega 2560 Pin Mapping.Įach of the 54 digital pins on the Mega can be used as an input or output, using pinMode(), digitalWrite(), and digitalRead()įunctions. ![]() IOREF pin voltage and select the appropriate power source or enable A properly configured shield can read the Maximum current draw is 50 mA.Īrduino board provides the voltage reference with which the A 3.3 volt supply generated by the on-board regulator. Or 3.3V pins bypasses the regulator, and can damage your board. (5V), or the VIN pin of the board (7-12V). With power either from the DC power jack (7 - 12V), the USB connector Regulated 5V from the regulator on the board. Voltage via the power jack, access it through this pin. You can supply voltage through this pin, or, if supplying Opposed to 5 volts from the USB connection or other regulated power To the Arduino board when it's using an external power source (as
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