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Syntax: delayMicroseconds(us)
Parameters:
- us: the number of microseconds to pause (unsigned int)
- Returns: None
UART COMMUNICATION:
This the traditional communication protocol which uses the inbuilt UART (Universal Asynchronous Serial Receiver and Transmitter), between the microcontroller and other UART devices like GSM, GPS, Bluetooth, Zigbee etc… Communication modules.
Serial.begin:
Sets the data rate in bits per second (baud) for serial data transmission.
For communicating with the computer, use one of these rates: 300, 600, 1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400, 57600, or 115200. You can, however, specify other rates – for example, to communicate over pins 0 and 1 with a component that requires a particular baud rate. An optional second argument configures the data, parity, and stop bits. The default is 8 data bits, no parity, one stop bit.
Syntax: Serial.begin(speed)
Serial.begin(speed, config)
Arduino Mega only:
Serial1.begin(speed)
Serial2.begin(speed)
Serial3.begin(speed)
Serial1.begin(speed, config)
Serial2.begin(speed, config)
Serial3.begin(speed, config)
Parameters:
- Speed: in bits per second (baud) – long
- Config: sets data, parity, and stop bits.
Valid values are : SERIAL_5N1, SERIAL_6N1, SERIAL_7N1, SERIAL_8N1 (the default), SERIAL_5N2, SERIAL_6N2, SERIAL_7N2, SERIAL_8N2, SERIAL_5E1, SERIAL_6E1, SERIAL_7E1, SERIAL_8E1, SERIAL_5E2, SERIAL_6E2, SERIAL_7E2, SERIAL_8E2, SERIAL_5O1, SERIAL_6O1, SERIAL_7O1, SERIAL_8O1, SERIAL_5O2, SERIAL_6O2, SERIAL_7O2, SERIAL_8O2
3. Returns: Nothing
Serial.read:
Reads incoming serial data. read() inherits from the Stream utility class.
Syntax: Serial.read()
Arduino Mega only:
Serial1.read()
Serial2.read()
Serial3.read()
Parameters:
- None
- Returns: The first byte of incoming serial data available (or -1 if no data is available) – int