Arduino leonardo serial1

Serial

Description

Used for communication between the Arduino board and a computer or other devices. All Arduino boards have at least one serial port (also known as a UART or USART), and some have several.

Leonardo, Micro, YГєn

Connected to USB

Connected to NINA

SerialUSB (Native USB Port only)

Connected to Programming Port

SerialUSB (Native USB Port only)

On Uno, Nano, Mini, and Mega, pins 0 and 1 are used for communication with the computer. Connecting anything to these pins can interfere with that communication, including causing failed uploads to the board.

You can use the Arduino environment’s built-in serial monitor to communicate with an Arduino board. Click the serial monitor button in the toolbar and select the same baud rate used in the call to begin() .

Serial communication on pins TX/RX uses TTL logic levels (5V or 3.3V depending on the board). Don’t connect these pins directly to an RS232 serial port; they operate at +/- 12V and can damage your Arduino board.

To use these extra serial ports to communicate with your personal computer, you will need an additional USB-to-serial adaptor, as they are not connected to the Mega’s USB-to-serial adaptor. To use them to communicate with an external TTL serial device, connect the TX pin to your device’s RX pin, the RX to your device’s TX pin, and the ground of your Mega to your device’s ground.

Источник

Serial

Description

Used for communication between the Arduino board and a computer or other devices. All Arduino boards have at least one serial port (also known as a UART or USART), and some have several.

Board USB CDC name Serial pins Serial1 pins Serial2 pins Serial3 pins

Leonardo, Micro, YГєn

Connected to USB

Connected to NINA

SerialUSB (Native USB Port only)

Connected to Programming Port

SerialUSB (Native USB Port only)

On Uno, Nano, Mini, and Mega, pins 0 and 1 are used for communication with the computer. Connecting anything to these pins can interfere with that communication, including causing failed uploads to the board.

You can use the Arduino environment’s built-in serial monitor to communicate with an Arduino board. Click the serial monitor button in the toolbar and select the same baud rate used in the call to begin() .

Serial communication on pins TX/RX uses TTL logic levels (5V or 3.3V depending on the board). Don’t connect these pins directly to an RS232 serial port; they operate at +/- 12V and can damage your Arduino board.

To use these extra serial ports to communicate with your personal computer, you will need an additional USB-to-serial adaptor, as they are not connected to the Mega’s USB-to-serial adaptor. To use them to communicate with an external TTL serial device, connect the TX pin to your device’s RX pin, the RX to your device’s TX pin, and the ground of your Mega to your device’s ground.

Источник

Serial

Класс Serial используется для связи платы Ардуино с компьютером или другими устройствами. Все платы Arduino имеют, по крайней мере, один последовательный порт (также известный как UART или USART): Serial. Он связан с цифровыми выводами 0 (RX) и 1 (TX), а также используется для связи с компьютером через USB. Таким образом, во время использования последовательного порта, выводы 0 и 1 не могут использоваться в качестве цифровых входов или выходов.

Для связи с Arduino можно использовать специальную программу мониторинга последовательного порта, встроенную в программное обеспечение Ардуино. Для вызова программы нажмите соответствующую кнопку на панели инструментов и установите ту же скорость передачи, что указывается в вашей программе при вызове метода begin().

Arduino Mega имеет три дополнительных последовательных порта: Serial1 с выводами 19 (RX) и 18 (TX), Serial2 с выводами 17 (RX) и 16 (TX), Serial3 с выводами 15 (RX) и 14 (TX). Данные выводы не связаны с преобразователем USB-UART на плате Mega, поэтому, для организации связи с компьютером через эти выводы понадобится дополнительный внешний преобразователь USB-UART. Для связи же с другим внешним устройством, имеющим последовательный TTL-порт, достаточно соединить всего три вывода: вывод TX с выводом RX устройства, вывод RX — с выводом TX устройства, а землю Mega, соответственно, с землей внешнего устройства. (Не подсоединяйте эти выводы к последовательному порту RS232 напрямую, поскольку последний работает с напряжениями +/- 12В и может повредить плату Ардуино.)

Arduino Due имеет три дополнительных последовательных порта с TTL-уровнем 3.3В: Serial1 с выводами 19 (RX) и 18 (TX); Serial2 с выводами 17 (RX) и 16 (TX), Serial3 с выводами 15 (RX) и 14 (TX). Выводы 0 и 1 по-прежнему соединены с соответствующими выводами преобразователя интерфейсов USB-Serial TTL, реализованным на микросхеме ATmega16U2, связанной с отладочным портом USB. Помимо этого, благодаря возможностям микросхем SAM3X, на плате реализована и аппаратная поддержка порта USB, SerialUSB.

В Arduino Leonardo Serial1 используется для связи через последовательный TTL-порт (5В) посредством выводов 0 (RX) и 1 (TX). Serial зарезервировано для USB CDC-связи. Для получения дополнительной информации см. страницы Leonardo — начало работы и описание платы.

Источник

Serial

Description

Used for communication between the Arduino board and a computer or other devices. All Arduino boards have at least one serial port (also known as a UART or USART), and some have several.

Board USB CDC name Serial pins Serial1 pins Serial2 pins Serial3 pins

Leonardo, Micro, YГєn

Connected to USB

Connected to NINA

SerialUSB (Native USB Port only)

Connected to Programming Port

SerialUSB (Native USB Port only)

On Uno, Nano, Mini, and Mega, pins 0 and 1 are used for communication with the computer. Connecting anything to these pins can interfere with that communication, including causing failed uploads to the board.

You can use the Arduino environment’s built-in serial monitor to communicate with an Arduino board. Click the serial monitor button in the toolbar and select the same baud rate used in the call to begin() .

Serial communication on pins TX/RX uses TTL logic levels (5V or 3.3V depending on the board). Don’t connect these pins directly to an RS232 serial port; they operate at +/- 12V and can damage your Arduino board.

To use these extra serial ports to communicate with your personal computer, you will need an additional USB-to-serial adaptor, as they are not connected to the Mega’s USB-to-serial adaptor. To use them to communicate with an external TTL serial device, connect the TX pin to your device’s RX pin, the RX to your device’s TX pin, and the ground of your Mega to your device’s ground.

Источник

serial

Description

Used for communication between the Arduino board and a computer or other devices. All Arduino boards have at least one serial port (also known as a UART or USART): Serial. It communicates on digital pins 0 (RX) and 1 (TX) as well as with the computer via USB. Thus, if you use these functions, you cannot also use pins 0 and 1 for digital input or output.
You can use the Arduino environment’s built-in serial monitor to communicate with an Arduino board. Click the serial monitor button in the toolbar and select the same baud rate used in the call to begin() .

Serial communication on pins TX/RX uses TTL logic levels (5V or 3.3V depending on the board). Don’t connect these pins directly to an RS232 serial port; they operate at +/- 12V and can damage your Arduino board.

The Arduino Mega has three additional serial ports: Serial1 on pins 19 (RX) and 18 (TX), Serial2 on pins 17 (RX) and 16 (TX), Serial3 on pins 15 (RX) and 14 (TX). To use these pins to communicate with your personal computer, you will need an additional USB-to-serial adaptor, as they are not connected to the Mega’s USB-to-serial adaptor. To use them to communicate with an external TTL serial device, connect the TX pin to your device’s RX pin, the RX to your device’s TX pin, and the ground of your Mega to your device’s ground.

The Arduino DUE has three additional 3.3V TTL serial ports: Serial1 on pins 19 (RX) and 18 (TX); Serial2 on pins 17 (RX) and 16 (TX), Serial3 on pins 15 (RX) and 14 (TX). Pins 0 and 1 are also connected to the corresponding pins of the ATmega16U2 USB-to-TTL Serial chip, which is connected to the USB debug port. Additionally, there is a native USB-serial port on the SAM3X chip, SerialUSB’.

The Arduino Leonardo board uses Serial1 to communicate via TTL (5V) serial on pins 0 (RX) and 1 (TX). Serial is reserved for USB CDC communication. For more information, refer to the Leonardo getting started page and hardware page.

Источник

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Board USB CDC name Serial pins Serial1 pins Serial2 pins Serial3 pins