This data can be monitored with the help of Serial Monitor in the Arduino IDE. Using this USB connection and Arduino IDE, we can send data to Arduino or receive data from Arduino. Hence, if we want to connect our microcontrollers like 8051, AVR or ARM, we need to use an external serial to USB converter.īut Arduino UNO has an on board serial to USB converter and hence we can directly connect the Arduino to the computer. But, most modern computers and laptops do not include these COM ports. The UART connection requires a 9 pin DE – 9 Connector. Universal Asynchronous Receiver Transmitter.
The most common type of serial communication protocol is UART i.e. The main purpose of this serial communication is to transfer the sketch from computer to Arduino, send information to computer etc. When coming to Arduino, the communication between Arduino UNO (or any other board) and computer is serial communication. The main advantages of serial communication over parallel communication are longer distance communication, less number of wires for communication, reduction in hardware complexity etc. This is because, unlike parallel communication, serial communication transfers one bit of data at a time over two to four wires depending on the protocol.Įven though the data transfer speeds in serial communication is very less when compared to that of parallel communication, this speed is sufficient for devices like printer, hard disk, mouse etc. they cannot be used for long distance communication.Īpart from the on board communications like RAM, graphics cards and other PCI connections, all other devices like printers, hard disks, Ethernet etc. Even RAMs in modern computers use parallel communication as it increases the speed of data transmission by using separate channel for each bit to be transmitted.īut these high speed data transfers in parallel communication requires more number of wires and also the distance of communication is very less i.e. Some of the common examples of parallel communication are olden day’s printers and hard disks.
Parallel communication is a method of transferring multiple bits of data simultaneously using more number of data lines. Select the Next Set of Arduino Projects You Want to Learn in Electronicshub : Arduino Projects»
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