diff --git a/drivers/st7789/st7789.hpp b/drivers/st7789/st7789.hpp index 52369256..08b8cf17 100644 --- a/drivers/st7789/st7789.hpp +++ b/drivers/st7789/st7789.hpp @@ -47,7 +47,13 @@ namespace pimoroni { // The ST7789 requires 16 ns between SPI rising edges. // 16 ns = 62,500,000 Hz - static const uint32_t SPI_BAUD = 62'500'000; + // 2350 doesn't support 62,500,000 so use 75,000,000 seems to work. + #if !PICO_RP2350 + static const uint32_t SPI_BAUD = 62'500'000; + #else + static const uint32_t SPI_BAUD = 75'000'000; + #endif + public: diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt index c1f910d7..ae93c568 100644 --- a/examples/CMakeLists.txt +++ b/examples/CMakeLists.txt @@ -30,6 +30,7 @@ add_subdirectory(breakout_mlx90640) add_subdirectory(pico_display) add_subdirectory(pico_display_2) +add_subdirectory(pico_display_28) add_subdirectory(pico_unicorn) add_subdirectory(pico_unicorn_plasma) add_subdirectory(pico_scroll) diff --git a/examples/pico_display_28/CMakeLists.txt b/examples/pico_display_28/CMakeLists.txt new file mode 100644 index 00000000..36832af2 --- /dev/null +++ b/examples/pico_display_28/CMakeLists.txt @@ -0,0 +1,12 @@ +set(OUTPUT_NAME pico_display28_demo) + +add_executable( + ${OUTPUT_NAME} + pico_display_28_demo.cpp +) + +# Pull in pico libraries that we need +target_link_libraries(${OUTPUT_NAME} pico_stdlib hardware_spi hardware_pwm hardware_dma rgbled button pico_display_28 st7789 pico_graphics) + +# create map/bin/hex file etc. +pico_add_extra_outputs(${OUTPUT_NAME}) \ No newline at end of file diff --git a/examples/pico_display_28/pico_display_28_demo.cpp b/examples/pico_display_28/pico_display_28_demo.cpp new file mode 100644 index 00000000..5e23dc60 --- /dev/null +++ b/examples/pico_display_28/pico_display_28_demo.cpp @@ -0,0 +1,123 @@ +#include +#include +#include +#include + +#include "libraries/pico_display_28/pico_display_28.hpp" +#include "drivers/st7789/st7789.hpp" +#include "libraries/pico_graphics/pico_graphics.hpp" +#include "rgbled.hpp" +#include "button.hpp" + +using namespace pimoroni; + +ST7789 st7789(320, 240, ROTATE_0, false, get_spi_pins(BG_SPI_FRONT)); +PicoGraphics_PenRGB332 graphics(st7789.width, st7789.height, nullptr); + +RGBLED led(PicoDisplay28::LED_R, PicoDisplay28::LED_G, PicoDisplay28::LED_B); + +Button button_a(PicoDisplay28::A); +Button button_b(PicoDisplay28::B); +Button button_x(PicoDisplay28::X); +Button button_y(PicoDisplay28::Y); + +int main() { + char fpsbuf[512]; // Make sure buffer don't overflow + int frame_counter; // Counter for number of frames displayed + uint64_t start, elapsed; // Microsecond timers + float fps; // Frames per second to display + + frame_counter = 0; + + st7789.set_backlight(255); + led.set_rgb(0, 0, 0); + + struct pt { + float x; + float y; + uint8_t r; + float dx; + float dy; + uint16_t pen; + }; + + std::vector shapes; + for(int i = 0; i < 100; i++) { + pt shape; + shape.x = rand() % graphics.bounds.w; + shape.y = rand() % graphics.bounds.h; + shape.r = (rand() % 10) + 3; + shape.dx = float(rand() % 255) / 64.0f; + shape.dy = float(rand() % 255) / 64.0f; + shape.pen = graphics.create_pen(rand() % 255, rand() % 255, rand() % 255); + shapes.push_back(shape); + } + + Point text_location(0, 0); + + Pen BG = graphics.create_pen(120, 40, 60); + Pen WHITE = graphics.create_pen(255, 255, 255); + + start = time_us_64(); + // Get the start time + + while(true) { + if(button_a.raw()) text_location.x -= 1; + if(button_b.raw()) text_location.x += 1; + + if(button_x.raw()) text_location.y -= 1; + if(button_y.raw()) text_location.y += 1; + + graphics.set_pen(BG); + graphics.clear(); + + for(auto &shape : shapes) { + shape.x += shape.dx; + shape.y += shape.dy; + if((shape.x - shape.r) < 0) { + shape.dx *= -1; + shape.x = shape.r; + } + if((shape.x + shape.r) >= graphics.bounds.w) { + shape.dx *= -1; + shape.x = graphics.bounds.w - shape.r; + } + if((shape.y - shape.r) < 0) { + shape.dy *= -1; + shape.y = shape.r; + } + if((shape.y + shape.r) >= graphics.bounds.h) { + shape.dy *= -1; + shape.y = graphics.bounds.h - shape.r; + } + + graphics.set_pen(shape.pen); + graphics.circle(Point(shape.x, shape.y), shape.r); + + } + + // Since HSV takes a float from 0.0 to 1.0 indicating hue, + // then we can divide millis by the number of milliseconds + // we want a full colour cycle to take. 5000 = 5 sec + RGB p = RGB::from_hsv((float)millis() / 5000.0f, 1.0f, 0.5f + sinf(millis() / 100.0f / 3.14159f) * 0.5f); + + led.set_rgb(p.r, p.g, p.b); + + frame_counter++; + + elapsed = time_us_64(); + // Get the current time to calculate the elapsed time next + fps = (frame_counter / float(elapsed - start)) * 1000000; + sprintf(fpsbuf, "Frame = %d, FPS = %5.2f", frame_counter, fps); + // Create output text + + graphics.set_pen(WHITE); + graphics.text(fpsbuf, text_location, 320, 2); + // Render Frame counter and FPS to screen + + // update screen + st7789.update(&graphics); + } + + return 0; +} diff --git a/libraries/CMakeLists.txt b/libraries/CMakeLists.txt index e6d140ad..f713756f 100644 --- a/libraries/CMakeLists.txt +++ b/libraries/CMakeLists.txt @@ -20,6 +20,7 @@ add_subdirectory(breakout_bh1745) add_subdirectory(pico_graphics) add_subdirectory(pico_display) add_subdirectory(pico_display_2) +add_subdirectory(pico_display_28) add_subdirectory(pico_unicorn) add_subdirectory(pico_scroll) add_subdirectory(pico_explorer) diff --git a/libraries/pico_display_28/CMakeLists.txt b/libraries/pico_display_28/CMakeLists.txt new file mode 100644 index 00000000..3ae0eb95 --- /dev/null +++ b/libraries/pico_display_28/CMakeLists.txt @@ -0,0 +1,11 @@ +set(LIB_NAME pico_display_28) +add_library(${LIB_NAME} INTERFACE) + +target_sources(${LIB_NAME} INTERFACE + ${CMAKE_CURRENT_LIST_DIR}/${LIB_NAME}.cpp +) + +target_include_directories(${LIB_NAME} INTERFACE ${CMAKE_CURRENT_LIST_DIR}) + +# Pull in pico libraries that we need +target_link_libraries(${LIB_NAME} INTERFACE pico_stdlib hardware_spi hardware_pwm hardware_dma st7789 pico_graphics) \ No newline at end of file diff --git a/libraries/pico_display_28/README.md b/libraries/pico_display_28/README.md new file mode 100644 index 00000000..6dd215df --- /dev/null +++ b/libraries/pico_display_28/README.md @@ -0,0 +1,84 @@ +# Pico Display 2.8" Pack + +Our Pico Display Pack offers a vibrant 2.8" (320x240) IPS LCD screen for your Raspberry Pi Pico it also includes four switches and and an RGB LED! + +- [Example Program](#example-program) +- [Function Reference](#function-reference) + - [PicoGraphics](#picographics) + - [ST7789](#st7789) + +## Example Program + +The following example sets up Pico Display, displays some basic demo text and graphics and will illuminate the RGB LED green if the A button is pressed. + +```c++ +#include "pico_display_28.hpp" +#include "drivers/st7789/st7789.hpp" +#include "libraries/pico_graphics/pico_graphics.hpp" +#include "rgbled.hpp" +#include "button.hpp" + +// Display driver +ST7789 st7789(PicoDisplay28::WIDTH, PicoDisplay28::HEIGHT, ROTATE_0, false, get_spi_pins(BG_SPI_FRONT)); + +// Graphics library - in RGB332 mode you get 256 colours and optional dithering for 75K RAM. +PicoGraphics_PenRGB332 graphics(st7789.width, st7789.height, nullptr); + +// RGB LED +RGBLED led(PicoDisplay28::LED_R, PicoDisplay28::LED_G, PicoDisplay28::LED_B); + +// And each button +Button button_a(PicoDisplay28::A); +Button button_b(PicoDisplay28::B); +Button button_x(PicoDisplay28::X); +Button button_y(PicoDisplay28::Y); + +int main() { + + // set the backlight to a value between 0 and 255 + // the backlight is driven via PWM and is gamma corrected by our + // library to give a gorgeous linear brightness range. + st7789.set_backlight(100); + + while(true) { + // detect if the A button is pressed (could be A, B, X, or Y) + if(button_a.raw(display.A)) { + // make the led glow green + // parameters are red, green, blue all between 0 and 255 + // these are also gamma corrected + led.set_rgb(0, 255, 0); + } + + // set the colour of the pen + // parameters are red, green, blue all between 0 and 255 + graphics.set_pen(30, 40, 50); + + // fill the screen with the current pen colour + graphics.clear(); + + // draw a box to put some text in + graphics.set_pen(10, 20, 30); + Rect text_rect(10, 10, 150, 150); + graphics.rectangle(text_rect); + + // write some text inside the box with 10 pixels of margin + // automatically word wrapping + text_rect.deflate(10); + graphics.set_pen(110, 120, 130); + graphics.text("This is a message", Point(text_rect.x, text_rect.y), text_rect.w); + + // now we've done our drawing let's update the screen + st7789.update(&graphics); + } +} +``` + +## Function Reference + +### PicoGraphics + +Pico Display uses our Pico Graphics library to draw graphics and text. For more information [read the Pico Graphics function reference.](../pico_graphics/README.md#function-reference). + +### ST7789 + +Pico Display uses the ST7789 display driver to handle the LCD. For more information [read the ST7789 README.](../../drivers/st7789/README.md). diff --git a/libraries/pico_display_28/pico_display_28.cmake b/libraries/pico_display_28/pico_display_28.cmake new file mode 100644 index 00000000..20a6b50c --- /dev/null +++ b/libraries/pico_display_28/pico_display_28.cmake @@ -0,0 +1,10 @@ +add_library(pico_display_28 INTERFACE) + +target_sources(pico_display_28 INTERFACE + ${CMAKE_CURRENT_LIST_DIR}/pico_display_28.cpp +) + +target_include_directories(pico_display_28 INTERFACE ${CMAKE_CURRENT_LIST_DIR}) + +# Pull in pico libraries that we need +target_link_libraries(pico_display_28 INTERFACE pico_stdlib) \ No newline at end of file diff --git a/libraries/pico_display_28/pico_display_28.cpp b/libraries/pico_display_28/pico_display_28.cpp new file mode 100644 index 00000000..868e195a --- /dev/null +++ b/libraries/pico_display_28/pico_display_28.cpp @@ -0,0 +1 @@ +#include "pico_display_28.hpp" \ No newline at end of file diff --git a/libraries/pico_display_28/pico_display_28.hpp b/libraries/pico_display_28/pico_display_28.hpp new file mode 100644 index 00000000..96b32a94 --- /dev/null +++ b/libraries/pico_display_28/pico_display_28.hpp @@ -0,0 +1,18 @@ +#pragma once + +#include "pico/stdlib.h" + +namespace pimoroni { + class PicoDisplay28 { + public: + static const int WIDTH = 320; + static const int HEIGHT = 240; + static const uint8_t A = 12; + static const uint8_t B = 13; + static const uint8_t X = 14; + static const uint8_t Y = 15; + static const uint8_t LED_R = 26; + static const uint8_t LED_G = 27; + static const uint8_t LED_B = 28; + }; +}