The new Raspberry Pi Zero is ... that different pins can handle the same purpose. For audio the Greater Than Zero Pis (GTZPi) use PWM0_OUT and PWM1_OUT on the processor’s GPIO pins 40 and ...

You can’t make use of all of these at once, but with up to four different connections wired to a single pin you can ... image remixed from Raspberry Pi 4 GPIO pinout diagram by [Les Pounder].