dtourolleandClaude Opus 5
ed05dc9c2d
Load the full hardware config up front rather than only the GPIO section, so display settings can come from the same file. Adds a rotate parameter that falls back to display.rotate in the config when not passed explicitly, and logs the resolved value. Also bumps the dreader-hal submodule to 64c9177 (use partial draw) and adds a direct IT8951 example that bypasses the HAL, for isolating display problems to the driver layer. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
111 lines
2.6 KiB
Python
Executable File
111 lines
2.6 KiB
Python
Executable File
#!/usr/bin/env python3
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"""
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Direct IT8951 test - bypasses the HAL completely.
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Uses IT8951 library directly like the working example.
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"""
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from IT8951 import constants
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from IT8951.display import AutoEPDDisplay
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from PIL import Image
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def main():
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"""Test display with direct IT8951 access."""
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print("=" * 60)
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print("Direct IT8951 Test - Half Black, Half White")
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print("=" * 60)
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print()
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print("This test bypasses the HAL and uses IT8951 directly.")
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print("Matches the working code you provided.")
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print()
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# Display size
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width, height = 1872, 1404
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shape = (height, width) # IT8951 uses (height, width) format
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print(f"Display shape: {shape} (height, width)")
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print(f"Dimensions: {width}x{height}")
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print()
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# Create test image
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print("Creating test image...")
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print(" Left half: BLACK (0)")
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print(" Right half: WHITE (255)")
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# Create grayscale image
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screen = Image.new('L', shape, color=255) # White background
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# Draw left half black
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pixels = screen.load()
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for y in range(height):
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for x in range(width // 2):
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pixels[x, y] = 0 # Black
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print(f"✓ Image created: {screen.size} {screen.mode}")
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print()
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# Save for reference
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output_file = "direct_test.png"
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screen.save(output_file)
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print(f"✓ Saved to: {output_file}")
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print()
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# Initialize display
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print("Initializing IT8951 display...")
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print(" VCOM: -1.7V")
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print(" Rotation: CW (clockwise)")
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print(" SPI: 24MHz")
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display = AutoEPDDisplay(
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vcom=-1.7,
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rotate="CW",
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spi_hz=24000000,
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device=0,
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bus=0
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)
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print("✓ Display initialized")
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print()
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# Display the image
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print("Displaying image...")
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print(" Using frame_buf.paste() + draw_full(GC16)")
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display.frame_buf.paste(screen, (0, 0))
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display.draw_full(constants.DisplayModes.GC16)
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print("✓ Image displayed!")
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print()
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print("=" * 60)
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print("CHECK YOUR SCREEN:")
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print("=" * 60)
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print()
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print("You should see:")
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print(" • LEFT HALF: BLACK")
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print(" • RIGHT HALF: WHITE")
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print()
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print("If this works, the display hardware is fine!")
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print("If this doesn't work, there's a hardware/wiring issue.")
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print()
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# Sleep display
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input("Press Enter to put display to sleep and exit...")
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epd = display.epd
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epd.sleep()
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print("Display put to sleep. Done!")
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if __name__ == "__main__":
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try:
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main()
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except KeyboardInterrupt:
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print("\n\nTest interrupted")
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except Exception as e:
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print(f"\nERROR: {e}")
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import traceback
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traceback.print_exc()
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