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docs: call displayio.release_displays() before SPI init in README example

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Fixes #39.

Also note why: avoids 'pin in use' errors on subsequent reloads when using explicit SPI pins.
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ritesh006 2025-08-27 12:36:44 +05:30
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README.rst
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@ -39,11 +39,14 @@ Usage Example
import fourwire import fourwire
import adafruit_ili9341 import adafruit_ili9341
# If you use explicit pins with busio.SPI(...), calling release_displays() first
# prevents "pin in use" errors on subsequent reloads.
displayio.release_displays()
spi = board.SPI() spi = board.SPI()
tft_cs = board.D9 tft_cs = board.D9
tft_dc = board.D10 tft_dc = board.D10
displayio.release_displays()
display_bus = fourwire.FourWire(spi, command=tft_dc, chip_select=tft_cs) display_bus = fourwire.FourWire(spi, command=tft_dc, chip_select=tft_cs)
display = adafruit_ili9341.ILI9341(display_bus, width=320, height=240) display = adafruit_ili9341.ILI9341(display_bus, width=320, height=240)