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https://github.com/RobTillaart/Arduino.git
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93 lines
1.5 KiB
C
93 lines
1.5 KiB
C
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#pragma once
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//
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// FILE: X9C10X.h
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.0
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// PURPOSE: Arduino Library for X9C10X series digital potentiometer.
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//
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#include "Arduino.h"
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#define X9C10X_LIB_VERSION (F("0.1.0"))
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class X9C10X
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{
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public:
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// ohm can be actual measured value e.g 9950 ohm (calibration)
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X9C10X(uint32_t ohm = 10000);
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void begin(uint8_t pulsePin, uint8_t directionPin, uint8_t selectPin, uint8_t position = 0);
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// position = 0..99
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void setPosition(uint8_t position);
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uint8_t getPosition() { return _position; };
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// step size 1.
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void incr();
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void decr();
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// use with care
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uint8_t store();
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// current resistance in ohm.
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// Q: rounding needed?
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uint32_t getOhm() { return (_ohm * _position) / 99; };
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// misc
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uint32_t getMaxOhm() { return _ohm; };
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// Q: needed?
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uint16_t getType() { return _type; };
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protected:
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uint8_t _pulsePin;
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uint8_t _directionPin;
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uint8_t _selectPin;
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uint32_t _ohm;
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uint8_t _position;
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uint16_t _type = 0; // needed?
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void _move(uint8_t direction, uint8_t steps = 1);
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};
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/////////////////////////////////////////////////////////
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//
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// DERIVED
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//
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class X9C102 : public X9C10X
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{
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public:
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X9C102(uint32_t ohm = 1000);
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};
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class X9C103 : public X9C10X
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{
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public:
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X9C103(uint32_t ohm = 10000);
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};
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class X9C104 : public X9C10X
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{
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public:
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X9C104(uint32_t ohm = 100000);
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};
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class X9C503 : public X9C10X
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{
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public:
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X9C503(uint32_t ohm = 50000);
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};
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// -- END OF FILE --
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