119 lines
3.6 KiB
C++
119 lines
3.6 KiB
C++
#pragma once
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#include "hardware/i2c.h"
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#include "hardware/gpio.h"
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#include "common/pimoroni_i2c.hpp"
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namespace pimoroni {
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class LTP305 {
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//--------------------------------------------------
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// Constants
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//--------------------------------------------------
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public:
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static constexpr uint8_t WIDTH = 10;
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static constexpr uint8_t HEIGHT = 7;
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static const uint8_t DEFAULT_I2C_ADDRESS = 0x61;
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static const uint8_t I2C_ADDRESS_ALTERNATE1 = 0x62;
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static const uint8_t I2C_ADDRESS_ALTERNATE2 = 0x63;
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static const uint8_t DEFAULT_BRIGHTNESS = 64;
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static const uint8_t MAX_BRIGHTNESS = 127;
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static const uint8_t DEFAULT_ON_LEVEL = 0x7f;
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private:
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static const uint8_t MODE = 0b00011000;
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static const uint8_t OPTS = 0b00001110; // 1110 = 35mA, 0000 = 40mA
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static const uint8_t CMD_BRIGHTNESS = 0x19;
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static const uint8_t CMD_MODE = 0x00;
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static const uint8_t CMD_UPDATE = 0x0C;
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static const uint8_t CMD_OPTIONS = 0x0D;
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static const uint8_t CMD_MATRIX_L = 0x0E;
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static const uint8_t CMD_MATRIX_R = 0x01;
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static const uint8_t BUFFER_LENGTH = 8;
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static const uint8_t BUFFER_CMD = 1;
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//--------------------------------------------------
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// Variables
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//--------------------------------------------------
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private:
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I2C *i2c;
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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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uint8_t brightness = DEFAULT_BRIGHTNESS;
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//Including CMD in buffer to make transmission easier later on
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uint8_t buf_matrix_left[BUFFER_CMD + BUFFER_LENGTH] = { CMD_MATRIX_L, 0, 0, 0, 0, 0, 0, 0, 0 };
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uint8_t buf_matrix_right[BUFFER_CMD + BUFFER_LENGTH] = { CMD_MATRIX_R, 0, 0, 0, 0, 0, 0, 0, 0 };
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/* How matrix buffers look with all leds illuminated
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buf_matrix_left = {
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// Row 7654321
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0b01111111, // col 1, bottom = msb
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0b01111111, // col 2
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0b01111111, // col 3
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0b01111111, // col 4
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0b01111111, // col 5
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0b00000000,
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0b00000000,
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0b01000000 # bit 7 = decimal dot
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};
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buf_matrix_right = {
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// Col 12345
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0b00011111, // row 1
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0b00011111, // row 2
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0b00011111, // row 3
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0b00011111, // row 4
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0b00011111, // row 5
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0b00011111, // row 6
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0b10011111, // row 7 + bit 8 = decimal dot
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0b00000000
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};*/
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//--------------------------------------------------
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// Constructors/Destructor
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//--------------------------------------------------
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public:
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LTP305() {}
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LTP305(uint8_t address) :
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address(address) {}
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LTP305(I2C *i2c, uint8_t address = DEFAULT_I2C_ADDRESS) :
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i2c(i2c), address(address) {}
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LTP305(uint8_t address, uint sda, uint scl) : LTP305(new I2C(sda, scl), address) {}
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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_address() const;
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int get_sda() const;
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int get_scl() const;
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void set_brightness(uint8_t brightness, bool update = false);
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void set_decimal(bool left = false, bool right = false);
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void set_pixel(uint8_t x, uint8_t y, bool c);
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void set_character(uint8_t x, uint16_t ch);
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void set_image(const uint8_t *image, uint16_t image_width, uint16_t image_height,
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uint16_t offset_x, uint16_t offset_y, bool wrap = false, bool bg = false, uint8_t on_level = DEFAULT_ON_LEVEL, uint8_t padding = 0);
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void clear();
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void show();
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};
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}
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