v1.5.0 for new PWM_manual example, to add function setPWM_DCPercentage_manual() to facilitate the setting PWM DC manually, etc.

[khoih-prog]

Releases v1.5.0

1. Add example PWM_manual to demo how to correctly use PWM to generate waveform
2. Add function setPWM_DCPercentage_manual() to facilitate the setting PWM DC manually by using DCPercentage, instead of absolute DCValue depending on varying TOP
3. Add functions getPin() and getActualDutyCycle()

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This discussion was created from the release v1.5.0 for new PWM_manual example, to add function setPWM_DCPercentage_manual() to facilitate the setting PWM DC manually, etc..