System.PIO.Linux.PWM

Documentation

type Channel = Int

PWM channel numbers are values of type Int

type Period = Int

PWM period is a value of type Int

type DutyCycle = Int

PWM duty cycle is a value of type Int

setEnable :: Channel -> Bool -> IO ()

Computation setEnable channel True makes corresponding PWM channel enabled. Computation setEnable channel False makes corresponding PWM channel disabled.

getEnable :: Channel -> IO Bool

Computation getEnable channel obtain status of corresponding PWM channel.

setValue :: Channel -> Period -> DutyCycle -> IO ()

setValue channel period dutyCycle generates PWM signal on corresponding PWM channel. period and dutyCycle are value of nanoseconds.

getValue :: Channel -> IO (Period, DutyCycle)

getValue channel obtain status of current PWM signal on corresponding PWM channel.