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Forairaaaaa
94 lines
2.3 KiB
C++
94 lines
2.3 KiB
C++
/*
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* SPDX-FileCopyrightText: 2026 M5Stack Technology CO LTD
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*
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* SPDX-License-Identifier: MIT
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*/
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#pragma once
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#include <cstdint>
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#include "driver/i2c_master.h"
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#include "esp_err.h"
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namespace m5 {
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class PY32IOExpander_Class {
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public:
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static constexpr uint8_t DEFAULT_ADDRESS = 0x6F;
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PY32IOExpander_Class(i2c_master_bus_handle_t i2c_bus_handle, uint8_t addr = DEFAULT_ADDRESS);
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~PY32IOExpander_Class();
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/**
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* @brief Initialize the device
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*
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* @return true if successful
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* @return false if failed
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*/
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bool begin();
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// IOExpander methods
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// false input, true output
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void setDirection(uint8_t pin, bool direction);
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void enablePull(uint8_t pin, bool enablePull);
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// false down, true up
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void setPullMode(uint8_t pin, bool mode);
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// false push-pull, true open-drain
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void setDriveMode(uint8_t pin, bool openDrain);
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void setHighImpedance(uint8_t pin, bool enable);
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bool getWriteValue(uint8_t pin);
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void digitalWrite(uint8_t pin, bool level);
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bool digitalRead(uint8_t pin);
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void resetIrq();
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void disableIrq();
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void enableIrq();
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// Extended functionality
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uint16_t readDeviceUID();
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uint8_t readVersion();
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// ADC
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// channel: 1-4
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uint16_t analogRead(uint8_t channel);
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// PWM
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// channel: 0-3
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void setPwmDuty(uint8_t channel, uint8_t duty);
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void setPwmFrequency(uint16_t freq);
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// LED
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void setLedCount(uint8_t count);
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void setLedColor(uint8_t index, uint16_t color565);
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void setLedColor(uint8_t index, uint8_t r, uint8_t g, uint8_t b);
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void setLedColor(uint8_t index, uint32_t color);
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void setLedData(const uint8_t* data, size_t len);
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void refreshLeds();
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private:
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i2c_master_dev_handle_t _i2c_dev;
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uint8_t _addr;
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bool _initialized;
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esp_err_t writeRegister8(uint8_t reg, uint8_t value);
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uint8_t readRegister8(uint8_t reg);
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esp_err_t writeRegister(uint8_t reg, const uint8_t* data, size_t len);
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esp_err_t readRegister(uint8_t reg, uint8_t* data, size_t len);
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esp_err_t bitOn(uint8_t reg, uint8_t mask);
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esp_err_t bitOff(uint8_t reg, uint8_t mask);
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void _writeBit(uint8_t reg_l, uint8_t reg_h, uint8_t pin, bool value);
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bool _readBit(uint8_t reg_l, uint8_t reg_h, uint8_t pin);
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};
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} // namespace m5
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