kopia lustrzana https://github.com/pimoroni/pimoroni-pico
Initial shot at is31fl3731
rodzic
daac2c64d5
commit
a861100cb1
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@ -1,2 +1,3 @@
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add_subdirectory(st7789)
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add_subdirectory(msa301)
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add_subdirectory(msa301)
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add_subdirectory(is31fl3731)
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add_library(is31fl3731 INTERFACE)
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target_sources(is31fl3731 INTERFACE
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${CMAKE_CURRENT_LIST_DIR}/is31fl3731.cpp
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)
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target_include_directories(is31fl3731 INTERFACE ${CMAKE_CURRENT_LIST_DIR})
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# Pull in pico libraries that we need
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target_link_libraries(is31fl3731 INTERFACE pico_stdlib hardware_i2c)
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#include <cstdlib>
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#include <math.h>
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#include <map>
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#include <vector>
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#include "is31fl3731.hpp"
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namespace pimoroni {
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constexpr uint8_t CONFIG_BANK = 0x0b;
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constexpr uint8_t NUM_PIXELS = 144;
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constexpr uint8_t NUM_FRAMES = 8;
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constexpr uint8_t ENABLE_OFFSET = 0x00;
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constexpr uint8_t COLOR_OFFSET = 0x24;
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constexpr uint8_t GAMMA[256] = {
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2,
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2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5,
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6, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9, 9, 10, 10, 11, 11,
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11, 12, 12, 13, 13, 13, 14, 14, 15, 15, 16, 16, 17, 17, 18, 18,
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19, 19, 20, 21, 21, 22, 22, 23, 23, 24, 25, 25, 26, 27, 27, 28,
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29, 29, 30, 31, 31, 32, 33, 34, 34, 35, 36, 37, 37, 38, 39, 40,
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40, 41, 42, 43, 44, 45, 46, 46, 47, 48, 49, 50, 51, 52, 53, 54,
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55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70,
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71, 72, 73, 74, 76, 77, 78, 79, 80, 81, 83, 84, 85, 86, 88, 89,
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90, 91, 93, 94, 95, 96, 98, 99, 100, 102, 103, 104, 106, 107, 109, 110,
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111, 113, 114, 116, 117, 119, 120, 121, 123, 124, 126, 128, 129, 131, 132, 134,
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135, 137, 138, 140, 142, 143, 145, 146, 148, 150, 151, 153, 155, 157, 158, 160,
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162, 163, 165, 167, 169, 170, 172, 174, 176, 178, 179, 181, 183, 185, 187, 189,
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191, 193, 194, 196, 198, 200, 202, 204, 206, 208, 210, 212, 214, 216, 218, 220,
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222, 224, 227, 229, 231, 233, 235, 237, 239, 241, 244, 246, 248, 250, 252, 255};
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enum mode {
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PICTURE = 0x00,
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AUTOPLAY = 0x08,
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AUDIOPLAY = 0x18
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};
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enum reg {
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MODE = 0x00,
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FRAME = 0x01,
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AUTPLAY1 = 0x02,
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AUTOPLAY2 = 0x03,
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BLINK = 0x05,
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AUDIOSYNC = 0x06,
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BREATH1 = 0x07,
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BREATH2 = 0x08,
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SHUTDOWN = 0x0a,
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GAIN = 0x0b,
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ADC = 0x0c,
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BANK = 0xfd
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};
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void IS31FL3731::init() {
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i2c_init(i2c, 100000);
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gpio_set_function(sda, GPIO_FUNC_I2C); gpio_pull_up(sda);
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gpio_set_function(scl, GPIO_FUNC_I2C); gpio_pull_up(scl);
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i2c_reg_write_uint8(reg::SHUTDOWN, 0b00000001);
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i2c_reg_write_uint8(reg::BANK, CONFIG_BANK);
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i2c_reg_write_uint8(reg::MODE, mode::PICTURE);
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i2c_reg_write_uint8(reg::AUDIOSYNC, 0);
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clear();
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}
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void IS31FL3731::clear() {
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for(auto i = 0u; i < sizeof(buf); i++) {
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buf[i] = 0;
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}
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}
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void IS31FL3731::i2c_reg_write_uint8(uint8_t reg, uint8_t value) {
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uint8_t buffer[2] = {reg, value};
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i2c_write_blocking(i2c, address, buffer, 2, false);
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}
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int16_t IS31FL3731::i2c_reg_read_int16(uint8_t reg) {
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int16_t value;
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i2c_write_blocking(i2c, address, ®, 1, true);
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i2c_read_blocking(i2c, address, (uint8_t *)&value, 2, false);
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return value;
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}
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void IS31FL3731::enable(std::initializer_list<uint8_t> pattern, uint8_t frame) {
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i2c_reg_write_uint8(reg::BANK, frame);
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uint8_t enable_buf[19];
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uint8_t *ptr = enable_buf;
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enable_buf[0] = ENABLE_OFFSET;
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ptr++;
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for(auto byte : pattern) {
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*ptr++ = byte;
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}
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i2c_write_blocking(i2c, address, enable_buf, sizeof(enable_buf), false);
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}
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void IS31FL3731::set(uint8_t index, uint8_t brightness) {
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buf[index + 1] = GAMMA[brightness];
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}
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void IS31FL3731::update(uint8_t frame) {
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i2c_reg_write_uint8(reg::BANK, frame);
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buf[0] = COLOR_OFFSET;
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i2c_write_blocking(i2c, address, buf, sizeof(buf), false);
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i2c_reg_write_uint8(reg::BANK, CONFIG_BANK); // Switch back to config bank
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i2c_reg_write_uint8(reg::FRAME, frame); // Set the desired frame as active
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}
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}
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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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namespace pimoroni {
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class IS31FL3731 {
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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 = 0x74;
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int8_t sda = 4;
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int8_t scl = 5;
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uint8_t buf[145];
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public:
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IS31FL3731() {}
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IS31FL3731(i2c_inst_t *i2c, uint8_t sda, uint8_t scl) :
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i2c(i2c), sda(sda), scl(scl) {}
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void init();
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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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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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@ -2,4 +2,5 @@ add_subdirectory(pico_display)
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add_subdirectory(pico_unicorn)
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add_subdirectory(pico_scroll)
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add_subdirectory(pico_explorer)
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add_subdirectory(pico_rgb_keypad)
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add_subdirectory(pico_rgb_keypad)
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add_subdirectory(breakout_rgbmatrix5x5)
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add_executable(
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rgbmatrix5x5
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demo.cpp
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)
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# Pull in pico libraries that we need
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target_link_libraries(rgbmatrix5x5 pico_stdlib hardware_spi hardware_pwm hardware_dma is31fl3731)
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# create map/bin/hex file etc.
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pico_add_extra_outputs(rgbmatrix5x5)
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#include <string.h>
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#include <math.h>
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#include <vector>
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#include <cstdlib>
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#include "is31fl3731.hpp"
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using namespace pimoroni;
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IS31FL3731 rgbmatrix5x5;
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struct RGB {
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uint8_t r;
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uint8_t g;
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uint8_t b;
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};
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// This wonderful lookup table maps the LEDs on RGB Matrix 5x5
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// from their 3x5x5 (remember, they're RGB) configuration to
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// their specific location in the 144 pixel buffer.
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const RGB lookup_table[] = {
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(118, 69, 85),
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(117, 68, 101),
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(116, 84, 100),
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(115, 83, 99),
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(114, 82, 98),
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(113, 81, 97),
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(112, 80, 96),
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(134, 21, 37),
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(133, 20, 36),
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(132, 19, 35),
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(131, 18, 34),
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(130, 17, 50),
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(129, 33, 49),
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(128, 32, 48),
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(127, 47, 63),
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(121, 41, 57),
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(122, 25, 58),
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(123, 26, 42),
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(124, 27, 43),
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(125, 28, 44),
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(126, 29, 45),
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(15, 95, 111),
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(8, 89, 105),
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(9, 90, 106),
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(10, 91, 107),
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(11, 92, 108),
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(12, 76, 109),
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(13, 77, 93),
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};
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RGB lookup_pixel(uint8_t index) {
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return lookup_table[index];
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}
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void set_pixel(uint8_t x, uint8_t y, uint8_t r, uint8_t g, uint8_t b) {
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if (x == 1 || x == 3) {
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y = 4 - y;
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}
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uint8_t index = y + (x * 5);
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RGB rgb = lookup_pixel(index);
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rgbmatrix5x5.set(rgb.r, r);
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rgbmatrix5x5.set(rgb.g, g);
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rgbmatrix5x5.set(rgb.b, b);
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}
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int main() {
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rgbmatrix5x5.init();
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rgbmatrix5x5.enable({
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0b00000000, 0b10111111,
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0b00111110, 0b00111110,
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0b00111111, 0b10111110,
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0b00000111, 0b10000110,
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0b00110000, 0b00110000,
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0b00111111, 0b10111110,
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0b00111111, 0b10111110,
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0b01111111, 0b11111110,
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0b01111111, 0b00000000
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}, 0);
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uint8_t col = 0;
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while(1) {
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for(auto x = 0u; x < 5; x++) {
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for(auto y = 0u; y < 5; y++) {
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set_pixel(x, y, col, col, col);
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}
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}
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rgbmatrix5x5.update(0);
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sleep_ms(10);
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col++;
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}
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return 0;
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}
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