70 lines
1.9 KiB
C++
70 lines
1.9 KiB
C++
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#pragma once
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#include "hardware/i2c.h"
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#include "hardware/gpio.h"
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#include <initializer_list>
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namespace pimoroni {
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class IS31FL3731 {
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//--------------------------------------------------
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// Constants
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//--------------------------------------------------
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public:
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static const uint8_t DEFAULT_I2C_ADDRESS = 0x74;
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static const uint8_t I2C_ADDRESS_ALTERNATE1 = 0x75;
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static const uint8_t I2C_ADDRESS_ALTERNATE2 = 0x76;
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static const uint8_t I2C_ADDRESS_ALTERNATE3 = 0x77;
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static const uint8_t DEFAULT_SDA_PIN = 20;
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static const uint8_t DEFAULT_SCL_PIN = 21;
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//--------------------------------------------------
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// Variables
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//--------------------------------------------------
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private:
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i2c_inst_t *i2c = i2c0;
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// interface pins with our standard defaults where appropriate
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int8_t address = DEFAULT_I2C_ADDRESS;
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int8_t sda = DEFAULT_SDA_PIN;
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int8_t scl = DEFAULT_SCL_PIN;
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uint8_t buf[145];
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//--------------------------------------------------
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// Constructors/Destructor
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//--------------------------------------------------
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public:
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IS31FL3731() {}
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IS31FL3731(uint8_t address) :
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address(address) {}
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IS31FL3731(i2c_inst_t *i2c, uint8_t address, uint8_t sda, uint8_t scl) :
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i2c(i2c), address(address), sda(sda), scl(scl) {}
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//--------------------------------------------------
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// Methods
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//--------------------------------------------------
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public:
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bool init();
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i2c_inst_t* get_i2c() const;
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int get_sda() const;
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int get_scl() const;
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void enable(std::initializer_list<uint8_t> pattern, uint8_t frame = 0);
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void set(uint8_t index, uint8_t brightness);
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void update(uint8_t frame = 0);
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void clear();
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private:
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void i2c_reg_write_uint8(uint8_t reg, uint8_t value);
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int16_t i2c_reg_read_int16(uint8_t reg);
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};
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}
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