Documentation

Configure the baud rate of the serial port.

This must be included in your sketch if it uses the serial port.

Output to the serial port.

Note that this can only be used once in a Sketch.

main = arduino $ do
	Serial.baud 9600
	b <- readfrom pin3
	n <- readvoltage a1
	Serial.output true
		[ Serial.str "pin3:"
		, Serial.show b
		, Serial.str " a1:"
		, Serial.show n
		, Serial.char '\n'
		]

Use this to output a Char

Use this to output a String

Use this to show the current value of a Stream.

Numbers will be formatted in decimal. Bool is displayed as 0 and 1.

Show the current value of a Stream with control over the formatting.

When used with a Float, provide the number of decimal places to show.

Serial.show (constant (1.234 :: Float)) 2 -- "1.23"

When used with any Integral type, provide the Base to display it in

Serial.show (constant (78 :: Int8)) Serial.HEX -- "4E"

Input from the serial port.

Reads one byte on each iteration of the sketch. When there is no serial input available, reads noInput.

userinput <- Serial.input

The list is used to simulate serial input when interpreting the program.

Value that is read from serial port when there is no input available.