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- #ARDUINO MEGA PINOUT ICSP SERIAL#
- #ARDUINO MEGA PINOUT ICSP DRIVER#
- #ARDUINO MEGA PINOUT ICSP PRO#
- #ARDUINO MEGA PINOUT ICSP SOFTWARE#
There are two RX and TX LEDs on the arduino board which will flash when data is being transmitted via the USB-to-serial chip and USB connection to the computer (not for serial communication on pins 0 and 1).
#ARDUINO MEGA PINOUT ICSP SOFTWARE#
The Arduino software includes a serial monitor which allows simple textual data to be sent to and from the Arduino board.
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#ARDUINO MEGA PINOUT ICSP DRIVER#
The ATmega16U2 firmware uses the standard USB COM drivers, and no external driver is needed. An ATmega16U2 on the board channels this serial communication over USB and appears as a virtual com port to software on the computer. The ATmega328P microcontroller provides UART TTL (5V) serial communication which can be done using digital pin 0 (Rx) and digital pin 1 (Tx). Reset Pin: Making this pin LOW, resets the microcontroller.Īrduino can be used to communicate with a computer, another Arduino board or other microcontrollers.AREF: Used to provide reference voltage for analog inputs with analogReference() function.Analog pin 4 (SDA) and pin 5 (SCA) also used for TWI communication using Wire library.Īrduino Uno has a couple of other pins as explained below:.They measure from 0 to 5 volts but this limit can be increased by using AREF pin with analog Reference() function. In-built LED Pin 13: This pin is connected with an built-in LED, when pin 13 is HIGH – LED is on and when pin 13 is LOW, its off.Īlong with 14 Digital pins, there are 6 analog input pins, each of which provide 10 bits of resolution, i.e.SPI Pins 10 (SS), 11 (MOSI), 12 (MISO) and 13 (SCK): These pins are used for SPI communication.PWM Pins 3, 5, 6, 9 and 11: These pins provide an 8-bit PWM output by using analogWrite() function.External Interrupt Pins 2 and 3: These pins can be configured to trigger an interrupt on a low value, a rising or falling edge, or a change in value.They are connected with the corresponding ATmega328P USB to TTL serial chip. Serial Pins 0 (Rx) and 1 (Tx): Rx and Tx pins are used to receive and transmit TTL serial data.Out of these 14 pins, some pins have specific functions as listed below: Each pin operate at 5V and can provide or receive a maximum of 40mA current, and has an internal pull-up resistor of 20-50 KOhms which are disconnected by default.
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The 14 digital input/output pins can be used as input or output pins by using pinMode(), digitalRead() and digitalWrite() functions in arduino programming. Arduino Uno has 14 digital input/output pins (out of which 6 can be used as PWM outputs), 6 analog input pins, a USB connection, A Power barrel jack, an ICSP header and a reset button. Along with ATmega328P, it consists other components such as crystal oscillator, serial communication, voltage regulator, etc.
#ARDUINO MEGA PINOUT ICSP PRO#
Note: Complete technical information can be found in the Arduino UNO Datasheet, linked at the bottom of this page.Īrduino Nano, Arduino Pro Mini, Arduino Mega, Arduino Due, Arduino MKR1000 Wi-Fi Board, Arduino LeonardoĪrduino Uno is a microcontroller board based on 8-bit ATmega328P microcontroller. To provide reference voltage for input voltage.ĪTmega328P – 8 bit AVR family microcontroller Used to receive and transmit TTL serial data.ġ0 (SS), 11 (MOSI), 12 (MISO) and 13 (SCK) Used to provide analog input in the range of 0-5V Vin: Input voltage to Arduino when using an external power source.ĥV: Regulated power supply used to power microcontroller and other components on the board.ģ.3V: 3.3V supply generated by on-board voltage regulator. Along with ATmega328P MCU IC, it consists other components such as crystal oscillator, serial communication, voltage regulator, etc. Arduino Uno is a popular microcontroller development board based on 8-bit ATmega328P microcontroller.