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ESP32-MicroPython-LVGL-ILI9341-Test.py
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| from ili9XXX import ili9341 | |
| import lvgl as lv | |
| from machine import Pin, PWM | |
| def init_backlight(brightness): | |
| frequency = 5000 | |
| duty_cycle = int(1023 * brightness) | |
| led = PWM(Pin(21), frequency) | |
| led.duty(duty_cycle) | |
| def init_screen(): | |
| rot = 3 # 0->0, 1->90, 2->180, 3->270 | |
| rotations = [0x80, 0xE0, 0x40, 0x20] | |
| if rot % 2 == 0: | |
| width, height = 240, 320 | |
| else: | |
| width, height = 320, 240 | |
| disp = ili9341(mosi=13, miso=12, clk=14, dc=2, cs=15, invert=False, | |
| rot=rotations[rot], width=width, height=height, | |
| rst=-1, power=-1, backlight=-1) | |
| def lv_draw_ui(): | |
| scr = lv.obj() | |
| btn = lv.button(scr) | |
| btn.align(lv.ALIGN.CENTER, 0, 0) | |
| label = lv.label(btn) | |
| label.set_text('Hello World!') | |
| lv.screen_load(scr) | |
| init_backlight(0.5) | |
| init_screen() | |
| lv_draw_ui() | |
| print('DONE!') | |
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