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rgb_display_ili9341test.py fails #123
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Without knowing the specifics of your setup, it's most likely one of:
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Sometimes things are that easy... But it's still not working, still a white screen and now I don't get any error at all, it's just this: administrator@raspberrypi:~ $ python3 rgb_display_ili9341test.py And than nothing.... no red or blue pixel, only white. This is the script I'm using: SPDX-FileCopyrightText: 2021 ladyada for Adafruit IndustriesSPDX-License-Identifier: MITQuick test of TFT FeatherWing (ILI9341) with Feather M0 or M4Will fill the TFT black and put a red pixel in the center, wait 2 seconds,then fill the screen blue (with no pixel), wait 2 seconds, and repeat.import time from adafruit_rgb_display.rgb import color565 Configuratoin for CS and DC pins (these are FeatherWing defaults on M0/M4):cs_pin = digitalio.DigitalInOut(board.D9) Config for display baudrate (default max is 24mhz):BAUDRATE = 24000000 Setup SPI bus using hardware SPI:spi = busio.SPI(clock=board.SCK, MOSI=board.MOSI, MISO=board.MISO) Create the ILI9341 display:display = ili9341.ILI9341(spi, cs=cs_pin, dc=dc_pin, baudrate=BAUDRATE) Main loop:while True: |
administrator@raspberrypi:~ $ python3 rgb_display_ili9341test.py
Traceback (most recent call last):
File "/home/administrator/rgb_display_ili9341test.py", line 25, in
spi = busio.SPI(clock=board.SCK, MOSI=board.MOSI, MISO=board.MISO)
File "/usr/local/lib/python3.9/dist-packages/busio.py", line 365, in init
self._spi = _SPI(portId)
File "/usr/local/lib/python3.9/dist-packages/adafruit_blinka/microcontroller/generic_linux/spi.py", line 25, in init
self._spi = spi.SPI(device=(portid, 0))
File "/usr/local/lib/python3.9/dist-packages/Adafruit_PureIO/spi.py", line 149, in init
raise IOError(f"{device} does not exist")
OSError: /dev/spidev0.0 does not exist
Whats wrong here?
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