Support for software PWM

[andrewn]

Raspi-io currently supports the Raspberry Pi's PWM pin via the nebrius/raspi-pwm library that wraps Wiring Pi.

It would be nice to have a way to fall back to Wiring Pi's Software PWM if the pin selected doesn't provide hardware PWM.

This would allow Johnny Five's LED#brightness and LED.RGB to work transparently on the Pi since they both require PWM.

[tralves]

This kind of exists through the package raspi-soft-pwm.

This package uses pigpio, which in turn uses the pigpio C library.

[andrewn]

Oops. :-)

Looks like I've duplicated your work by creating another raspi-soft-pwm but using Wiring Pi as the basis instead. I even picked the same name but didn't try to push to NPM otherwise I would have discovered your package!

I think having Raspi-IO support either one of these approaches would be useful.

[nebrius]

Support for raspi-soft-pwm in raspi-io has been published w/ 7.1.0! Thanks again for all of your help @tralves and @andrewn!