Arduino using wire library
- #Arduino using wire library serial
- #Arduino using wire library software
- #Arduino using wire library code
#Arduino using wire library serial
On a two-wire bus, hundreds of master and slave devices can communicate serial data using the I2C protocol. The I2C bus has only two wires: one is a data line (SDA) and one is a clock line (SCL). The I2C, or TWI, is a synchronous master-slave serial communication protocol originally developed by Philips Semiconductors (which is now NXP). Now, in this tutorial, we’ll learn about synchronous serial communication in Arduino using the inter-integrated circuit (I2C) bus. SPI bus is used for full-duplex synchronous serial communication with multiple devices. The I2C or two-wire interface (TWI) is used for half-duplex synchronous serial communication with multiple devices in a master-slave fashion. UART is useful for full-duplex serial communication with a single device over two wires. The universal asynchronous receiver/transmitter (UART), I2C, and SPI are the most commonly used serial interfaces in embedded systems.
#Arduino using wire library software
These bytes are the characters of the phrase “Master value:”.In previous tutorials, we’ve covered serial communication using the UART and software serial in Arduino. First, in the while loop, all bytes except for the last one are received.
This can be done using the command line “requestFrom(8,1)”.
#Arduino using wire library code
The following points are worth mentioning regarding the code above: We want to send the value of the potentiometer on the master side to the slave and receive a byte of the potentiometer data by the slave, display it on the Serial Monitor and control the brightness of the LED with it.
Working with the I2C communication protocol would be so easy using this library. To work with the I2C protocol, we use the “Wire” library, which is one of the Arduino IDE libraries.