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62 lines
1.5 KiB
62 lines
1.5 KiB
/*
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|| @author Brett Hagman <bhagman@wiring.org.co>
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|| @url http://wiring.org.co/
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|| @url http://roguerobotics.com/
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||
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|| @description
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|| | A Software PWM Library
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|| |
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|| | Written by Brett Hagman
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|| | http://www.roguerobotics.com/
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|| | bhagman@roguerobotics.com, bhagman@wiring.org.co
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|| |
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|| | A Wiring (and Arduino) Library, for Atmel AVR8 bit series microcontrollers,
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|| | to produce PWM signals on any arbitrary pin.
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|| |
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|| | It was originally designed for controlling the brightness of LEDs, but
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|| | could be adapted to control servos and other low frequency PWM controlled
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|| | devices as well.
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|| |
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|| | It uses a single hardware timer (Timer 2) on the Atmel microcontroller to
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|| | generate up to 20 PWM channels (your mileage may vary).
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|| |
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|| #
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||
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|| @license Please see the accompanying LICENSE.txt file for this project.
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||
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|| @name Software PWM Library
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|| @type Library
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|| @target Atmel AVR 8 Bit
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||
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|| @version 1.0.1
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||
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*/
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#ifndef SOFTPWM_H
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#define SOFTPWM_H
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#define SOFTPWM_VERSION 10000
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#include <stdint.h>
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#define SOFTPWM_MAXCHANNELS 20
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#define SOFTPWM_PWMDEFAULT 0x00
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#define SOFTPWM_NORMAL 0
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#define SOFTPWM_INVERTED 1
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#define ALL -1
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void SoftPWMBegin(uint8_t defaultPolarity = SOFTPWM_NORMAL);
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void SoftPWMSet(int8_t pin, uint8_t value, uint8_t hardset = 0);
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void SoftPWMEnd(int8_t pin);
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void SoftPWMSetFadeTime(int8_t pin, uint16_t fadeUpTime, uint16_t fadeDownTime);
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void SoftPWMSetPolarity(int8_t pin, uint8_t polarity);
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#endif
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