In this article, you will learn the basics of Universal Asynchronous Receiver-Transmitter (UART), a serial communication protocol that can be used to send data between an Arduino board and other devices.

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.

2024年7月17日 · The Arduino hardware has built-in support for UART communication on pins 0 and 1. The SoftwareSerial library has been developed to allow serial communication on other digital pins of the Arduino, using software to replicate the functionality (hence the name "SoftwareSerial").

Note: If you want to initialize the UART communication with any other Arduino board, please check here the serial port and the pins you need to use. Inside the loop (), we need to check if there is any byte available on the buffer using the Serial1. available function inside …

2024年11月8日 · 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.

Note: If you want to initialize the UART communication with any other Arduino board, please check here the serial port and the pins you need to use. Inside the loop (), we need to check if there is any byte available on the buffer using the Serial1. available function inside …

2024年7月17日 · Note: If you want to initialize the UART communication with any other Arduino board, please check here the serial port and the pins you need to use. Inside the loop (), we need to check if there is any byte available on the buffer using the Serial1. available function inside a while statement.

2018年9月5日 · Because UNO has only one hardware UART Port which is permanently engaged with Serial Monitor and IDE, we need a way of creating another UART Port using software instructions to connect a second UART Port driven device like Bluetooth Module, HC12 Radio Module, and the like.

2023年9月27日 · I want to set up 2 or multiple UART connection in an Arduino UNO with other modules. at first I want to know if it is possible? Yes, in case of two UART it is possible. The first is hardware UART on pins 0 & 1, the second is software emulation via SoftwareSerial library.

2024年2月12日 · A really cool feature with the Arduino IDE 2 is that the Serial Monitor is linked to the sketch windows you have open. For example, if we have two sketch windows, named sketch_1 and sketch_2 , we can select the port and board for each window, and have two Serial Monitors running at the same time .