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Table of Contents
Finch Commands
This section is just a quick hack. The commands will change in the future!
Commands
FINCH? (FINCHP)
Reports TRUE if a Finch is detected.
Syntax
FINCH?
Description
FINCH? reports TRUE if a Finch is detected.
Example
FINCH? Result: TRUE
FINCH.BUZZ
Controls the Finch's buzzer.
Syntax
FINCH.BUZZ frequency duration (FINCH.BUZZ frequency) (FINCH.BUZZ)
Description
FINCH.BUZZ sounds the Finch's buzzer. Its first input is the frequency in Hertz, and its second input is the duration in milliseconds. If the duration is omitted, the sound goes on forever until (FINCH.BUZZ) is issues, which turns off the sound.
Example
; Sound the middle A note for a second FINCH.BUZZ 440 1000
FINCH.CLOSE
Closes the connection to the Finch.
Syntax
FINCH.CLOSE
Description
FINCH.CLOSE closes the connection to the Finch.
Example
FINCH.CLOSE
FINCH.LED
Controls the Finch's nose LED.
Syntax
FINCH.LED color duration (FINCH.LED color) (FINCH.LED)
Description
FINCH.LED turns the Finch's nose LED on and sets its color to the given value. It turns off the LED after the number of milliseconds supplied as its second input expired. If the duration is omitted, the LED stays on. If FINCH.LED is used without inputs, the Finch's nose LED is turned off.
Example
; Set the LED to red for a second FINCH.LED "RED 1000 ; Set it to blue and leave it on (FINCH.LED "BLUE) ; turn it off (FINCH.LED)
FINCH.MOTORS
Controls the Finch's motors.
Syntax
FINCH.MOTORS left right duration (FINCH.MOTORS left right) (FINCH.MOTORS left left) (FINCH.MOTORS)
Description
FINCH.MOTORS controls the Finch's motors. The first two inputs control the speed and direction o the left and right wheels. Possible values are -1 (full power backwards) to 1 (full power forward). A value of 0 (which Logo assumes if a value if not supplied) turns the motor off.FINCH.MOTORS turns off the motors after the number of milliseconds supplied as its third input expired. If the duration is omitted, the motors stay on. If FINCH.MOTORS is used without inputs, the Finch's motors are turned off.
Example
; Move back at half speed for a second FINCH.MOTORS -0.5 -0.5 1000 ; turn the Finch right for half a second FINCH.MOTORS 0.5 -0.5 500
FINCH.SENSORS
Reports the value of Finch's sensor array.
Syntax
FINCH.SENSORS
Description
FINCH.SENSORS reports the values of Finch's sensor array as a four element list. The first value is a three-element list containing the values of Finch's accelerometers (X, Y and Z, values between -1 and 1). The second element is a two-element list of Finch's left and right lisght sensors (a value between 0 and 1). The third element is a two-element list containing the value of the left and right obstacle sensors (either TRUE or FALSE), and the last element is the temperatore sensor in degrees Celsius.
Example
FINCH.SENSORS Result: [[0.05 -0.05 1.08] [0.37 0.52] [FALSE FALSE] 22.08]