7. ШИМ регулятор - Rashid-S/SmartHome GitHub Wiki

7.1 https://micro-pi.ru/%D1%88%D0%B8%D0%BC-%D1%83%D0%BF%D1%80%D0%B0%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D0%B5-%D0%BE%D1%85%D0%BB%D0%B0%D0%B6%D0%B4%D0%B5%D0%BD%D0%B8%D0%B5%D0%BC-raspberry-pi/

7.2 https://ph0en1x.net/106-rpi-gpio-installation-working-with-inputs-outputs-interrupts.html#gpio-pwm-howto