Arduino uno pinout arduino mega pinout install#
Arduino uno pinout arduino mega pinout serial#

There are many in the network, both supporters and opponents of Arduino boards’ 8-bit architecture – they are trying to displace the debug boards STM family, and sometimes compared with single-board microcomputers.

Permissible input voltage from an external source: 7-12 V.

Maximum current from the pin or to pin: 40 mA.Maximum output current of Pin 3V3: 150 mA.Flash memory capacity: 256 KB (8 KB takes the loader).

Arduino uno pinout arduino mega pinout serial#

To work with the serial interface – use the Serial library methods.ĭownload the circuit diagram Arduino MEGA 2560 in PDF. Pins 0(RX) and 1(TX) are connected to the corresponding pins of the ATmega16U2 microcontroller, which acts as a USB-UART converter. It is used to communicate the Arduino board with a computer or other devices over a serial interface. To communicate with the periphery through the SPI interface. You can check Arduino LCD I2C tutorial here. If more voltage is applied, you will kill the microcontroller.įor communication with the periphery via the I☬ interface. The input voltage range is from 0 to 5 V. The ADC bit does not change and is set to 10 bits. The PWM bit rate does not change and is set to 8 bits.Īllows presenting analog voltage in digital form. Retaining resistors are connected to the contacts, which are switched off by default but may be enabled programmatically.Īllows outputting analog values as a PWM signal. The logical unit level is 5 V, zero is 0 V.

AREF: A pin to connect the external ADC reference voltage to which analog measurements are made using the analogReference() function with the “EXTERNAL” parameter.

Depending on the voltage, the expansion board may switch to the appropriate power supply or use level converters.

IOREF: The contact provides the expansion boards with information about the operating voltage of the microcontroller.

It is not recommended to power the device through the 3V3 output – you risk burning the board.

3.3V: Output pin from voltage regulator with 3.3 volt output and maximum current 150 mA.

It is not recommended to power the device through the 5V pin – you risk burning the board.

5V: Output pin from the voltage regulator on the board with an output of 5 volts and a maximum current of 800 mA.

Via the pin, you can consume voltage when the device is powered via the external power connector.

VIN: Input pin for external power supply with a voltage range from 7 to 12 volts.

It’s an ICSP-connector for internal microcontroller programming ATmega16U2. SPI lines are output on a 6-pin connector, as well as duplicated on digital pins 50 (MISO), 51 (MOSI), 52 (SCK), and 53 (SS). Also, using the SPI library, these outputs can communicate with the expansion boards on the SPI interface. ICSP-connector is designed for in-circuit programming microcontroller ATmega2560. It’s a linear voltage regulator LP2985-33DBVR with 3.3-volt output. Linear voltage regulator LD1117S50CTR with 5-volt output provides power for microcontrollers ATmega2560, ATmega16U2, and other platform logic. It’s an analog of the RESET button on a regular computer. It’s a connector for an external power supply from 7V to 12V. Type-B USB connector for power and firmware of the Arduino Mega 2560 platform using a computer. At high level, the LED turns on, at low level, the LED turns off. User LED connected to the 13 pin microcontroller. LED Nameįlash when exchanging data between Arduino Mega 2560 and PC. When connected to a PC, the Arduino Mega 2560 is defined as a virtual COM port. Microcontroller ATmega16U2 provides a connection of microcontroller ATmega2560 with the USB port of the computer. It should be noted that with a power supply voltage of 7-20 volts, the board works perfectly, and with a smaller, for example, 5 volts, there may be situations with the unstable operation. The controller provides 256KB of Flash memory for storing firmware, 8KB of SRAM, and 4KB of non-volatile EEPROM memory for data storage. The heart of the Arduino Mega platform is an 8-bit AVR family microcontroller – ATmega2560 with 16 MHz clock speed.

Arduino uno pinout arduino mega pinout install#

To launch the platform, download and install the Arduino IDE integrated development environment on your computer.