79 lines
3.2 KiB
C++
79 lines
3.2 KiB
C++
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// ----- PWM Pin Control -----
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////
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//
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// Wrappers around the ESP-IDF ledc library to control PWM-based devices:
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//
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// LedPin(pin) - controls a Dimmable LED on specified pin with frequency=5000 Hz
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// - use set(level) to set brightness from 0-100%
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//
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// ServoPin(pin) - controls a Servo Motor on specified pin with frequency=50 Hz
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// - use set(degrees) to set position to degrees
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//
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// Max number of LedPin instantiations: 16
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// Max number of ServoPin instantiatons: 8
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// Max combined limit (LedPins+ServoPins): 16
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//
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// Instantiation of an LedPin or ServoPin that causes any of the maximums above to be exceeded throws
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// an error message. The object will still be created, but calls to set(level) or set(degrees) are ignored.
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//
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////
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#include <Arduino.h>
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#include <driver/ledc.h>
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/////////////////////////////////////
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class LedPin {
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boolean enabled=false;
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ledc_channel_config_t ledChannel;
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public:
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LedPin(uint8_t pin, uint8_t level=0); // assigns pin to be output of one of 16 PWM channels within initial level
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void set(uint8_t level); // sets the PWM duty to level (0-100)
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int getPin(){return ledChannel.gpio_num;} // returns the pin number
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static uint8_t numChannels;
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static void HSVtoRGB(float h, float s, float v, float *r, float *g, float *b ); // converts Hue/Saturation/Brightness to R/G/B
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};
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/////////////////////////////////////
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class ServoPin {
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boolean enabled=false;
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uint16_t minMicros;
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uint16_t maxMicros;
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double minDegrees;
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double microsPerDegree;
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ledc_channel_config_t servoChannel;
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static const double micros2duty;
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public:
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ServoPin(uint8_t pin, double initDegrees, uint16_t minMicros, uint16_t maxMicros, double minDegrees, double maxDegrees);
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ServoPin(uint8_t pin, double initDegrees=0) : ServoPin(pin,initDegrees,1000,2000,-90,90) {};
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void set(double degrees); // sets the Servo to degrees, where degrees is bounded by [minDegrees,maxDegrees]
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int getPin(){return servoChannel.gpio_num;} // returns the pin number
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static uint8_t numChannels;
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};
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//*******************************************************
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// DEPRECATED - INCLUDED FOR BACKWARDS COMPATIBILITY ONLY
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//*******************************************************
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class PwmPin {
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uint8_t channel;
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uint8_t pin;
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ledc_channel_config_t ledChannel;
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public:
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PwmPin(uint8_t channel, uint8_t pin); // assigns pin to be output of one of 16 PWM channels (0-15)
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void set(uint8_t channel, uint8_t level); // sets the PWM duty to level (0-100)
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int getPin(){return pin;} // returns the pin number
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static void HSVtoRGB(float h, float s, float v, float *r, float *g, float *b ); // converts Hue/Saturation/Brightness to R/G/B
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};
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