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Thomas Farstrike
99 lines
3.5 KiB
Python
99 lines
3.5 KiB
Python
# Hardware initialization for Unix and MacOS systems
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import lcd_bus
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import lvgl as lv
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import sdl_display
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# Add lib/ to the path for modules, otherwise it will only search in ~/.micropython/lib and /usr/lib/micropython
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import sys
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sys.path.append('lib/')
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import mpos.ui
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import mpos.clipboard
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# Same as Waveshare ESP32-S3-Touch-LCD-2
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TFT_HOR_RES=320
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TFT_VER_RES=240
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#TFT_HOR_RES=640
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#TFT_VER_RES=480
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# 4:3 DVD resolution:
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#TFT_HOR_RES=720
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#TFT_VER_RES=576
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# 16:9 resolution:
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#TFT_HOR_RES=1024
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#TFT_VER_RES=576
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# 16:9 good resolution but fairly small icons:
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#TFT_HOR_RES=1280
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#TFT_VER_RES=720
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# Even HD works:
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#TFT_HOR_RES=1920
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#TFT_VER_RES=1080
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bus = lcd_bus.SDLBus(flags=0)
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buf1 = bus.allocate_framebuffer(TFT_HOR_RES * TFT_VER_RES * 2, 0)
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display = sdl_display.SDLDisplay(data_bus=bus,display_width=TFT_HOR_RES,display_height=TFT_VER_RES,frame_buffer1=buf1,color_space=lv.COLOR_FORMAT.RGB565)
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# display.set_dpi(65) # doesn't seem to change the default 130...
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display.init()
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# display.set_dpi(65) # doesn't seem to change the default 130...
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import sdl_pointer
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mouse = sdl_pointer.SDLPointer()
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def catch_escape_key(indev, indev_data):
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global sdlkeyboard
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#print(f"keypad_cb {indev} {indev_data}")
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#key = indev.get_key() # always 0
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#print(f"key {key}")
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#key = indev_data.key
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#state = indev_data.state
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#print(f"indev_data: {state} and {key}") # this catches the previous key release instead of the next key press
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pressed, code = sdlkeyboard._get_key() # get the current key and state
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print(f"catch_escape_key caught: {pressed}, {code}")
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if pressed == 1 and code == 27:
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mpos.ui.back_screen()
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sdlkeyboard._read(indev, indev_data)
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import sdl_keyboard
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sdlkeyboard = sdl_keyboard.SDLKeyboard()
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sdlkeyboard._indev_drv.set_read_cb(catch_escape_key) # check for escape
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sdlkeyboard.set_paste_text_callback(mpos.clipboard.paste_text)
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#def keyboard_cb(event):
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# global canvas
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# event_code=event.get_code()
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# print(f"boot_unix: code={event_code}") # target={event.get_target()}, user_data={event.get_user_data()}, param={event.get_param()}
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#keyboard.add_event_cb(keyboard_cb, lv.EVENT.ALL, None)
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# On the Waveshare ESP32-S3-Touch-LCD-2, the camera is hard-wired to power on,
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# so it needs a software power off to prevent it from staying hot all the time and quickly draining the battery.
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# 1) Initialize camera, otherwise it doesn't reply to I2C commands:
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try:
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from camera import Camera, GrabMode, PixelFormat, FrameSize, GainCeiling
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cam = Camera(data_pins=[12,13,15,11,14,10,7,2],vsync_pin=6,href_pin=4,sda_pin=21,scl_pin=16,pclk_pin=9,xclk_pin=8,xclk_freq=20000000,powerdown_pin=-1,reset_pin=-1,pixel_format=PixelFormat.RGB565,frame_size=FrameSize.R240X240,grab_mode=GrabMode.LATEST)
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cam.deinit()
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except Exception as e:
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print(f"camera init for power off got exception: {e}")
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# 2) Soft-power off camera, otherwise it uses a lot of current for nothing:
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try:
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from machine import Pin, I2C
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i2c = I2C(1, scl=Pin(16), sda=Pin(21)) # Adjust pins and frequency
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#devices = i2c.scan()
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#print([hex(addr) for addr in devices]) # finds it on 60 = 0x3C after init
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camera_addr = 0x3C # for OV5640
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reg_addr = 0x3008
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reg_high = (reg_addr >> 8) & 0xFF # 0x30
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reg_low = reg_addr & 0xFF # 0x08
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power_off_command = 0x42 # Power off command
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i2c.writeto(camera_addr, bytes([reg_high, reg_low, power_off_command]))
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except Exception as e:
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print(f"Warning: powering off camera got exception: {e}")
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print("boot_unix.py finished")
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