ILI9341 Touchscreen Error

[MEnsar55]

I'm using a Raspberry Pi Pico and an ili9341 touchscreen. To the codes below;

import machine
import ili9341

Set up the SPI bus

spi = machine.SPI(0, baudrate=10000000, miso=machine.Pin(16), mosi=machine.Pin(19),
sck=machine.Pin(18))

Set up the LCD display

lcd = ili9341.ILI9341(spi, 240, 320, cs=machine.Pin(17), dc=machine.Pin(20))

Clear the screen

lcd.clear()

Write "Hello World" to the screen

lcd.write("Hello World")

Display the screen

lcd.display()
i am getting this error: Traceback (most recent call last): File "", line 8, in AttributeError: 'module' object has no attribute 'ILI9341'

I downloaded the .py file in the link. https://github.com/rdagger/micropython-ili9341/blob/master/ili9341.py

[karfas]

am getting this error: Traceback (most recent call last): File "", line 8, in AttributeError: 'module' object has no attribute 'ILI9341'

What did you expect ? The file you linked doesn't define an ILI9341 class; the only class in this file is named Display (and doesn't have a write() function).

[ctimmer]

I'm using this module on a pico w. Any of the demo's would have shown how to setup and use.

Also this link was helpful.

Curt

[MEnsar55]

Well, what code did you run, can you share with me?

[robert-hh]

That's a litte piece of code showing some text. In addition to the ILI9341 driver, it uses the font file freeesans20.py and the library writer.py. All of that can be find in Peter's repositories. The font in gui/fonts, writer in https://github.com/peterhinch/micropython-font-to-py.

#
from machine import SPI, Pin
from ili9341 import ILI9341
from writer import CWriter
import freesans20
import time

backlight = Pin("LED_LCD", Pin.OUT)  # backlight is not a PWM pin
spi = SPI(7, sck="LCD_SCK", mosi="LCD_MOSI", miso="LCD_MISO", baudrate=24000000)
display = ILI9341(spi,  dc=Pin("LCD_D_C", Pin.OUT),
                  cs=Pin("LCD_CS", Pin.OUT, value=1),
                  rst=Pin("LCD_RESET", Pin.OUT, value=1))

BLACK = CWriter.create_color(display, 0, 0, 0, 0)
DARK_GREEN = CWriter.create_color(display, 5, 0, 128, 0)
GREEN = CWriter.create_color(display, 6, 0, 255, 0)
DARK_GRAY = CWriter.create_color(display, 12, 128, 128, 128)
YELLOW = CWriter.create_color(display, 14, 255, 255, 0)
WHITE = CWriter.create_color(display, 15, 255, 255, 255)

wri = CWriter(display, freesans20, fgcolor=WHITE, bgcolor=BLACK)
display.fill(0)
CWriter.set_textpos(display, 100, 60)  # verbose = False to suppress console output
wri.printstring("WIO Terminal D51R")
display.show()
backlight.on()
time.sleep(2)

[quantrpeter]

hi, i got this error

MPY: soft reboot
Traceback (most recent call last):
File "", line 2, in
ImportError: can't import name ILI9341

[peterhinch]

The driver may be found here installed with

$ mpremote mip install "github:peterhinch/micropython-nano-gui/drivers/ili93xx"

However rather than trying to replicate the above code (which requires some further knowledge) I suggest approaching this via nano-gui: the docs indicate how to set up and use the display.

[quantrpeter]

thanks Peter

[robert-hh]

For the other I have a sample script as well. It needs a font driver and files as well: XglcdFont and the Unispace font file.

# MicroPython / Seeed Wio Terminal / SAMD51
# Wio-Terminal-Screen.py - output something on the ILI9341 screen
# scruss, 2022-10
# -*- coding: utf-8 -*-


from time import sleep
from ili9341_wio import Display, color565
from machine import Pin, SPI
from XglcdFont import XglcdFont

backlight = Pin("LED_LCD", Pin.OUT)  # backlight is not a PWM pin
spi = SPI(
    7, sck=Pin("LCD_SCK"), mosi=Pin("LCD_MOSI"), miso=Pin("LCD_MISO"), baudrate=24000000
)
display = Display(spi, dc=Pin("LCD_D/C"), cs=Pin("LCD_CS"), rst=Pin("LCD_RESET"),
                  rotation=90, width=320, height=240)
font = XglcdFont('Unispace12x24.c', 12, 24)
display.display_on()
display.clear()
backlight.on()

display.draw_text(50, 100, 'WIO Terminal D51R', font, color565(128, 128, 128))

[robert-hh]

Here's the full set for your initially used driver:
ili9341_pack.zip

[robert-hh]

You have in both cases to adapt the SPI pins.

[MEnsar55]

Ok, I'll try tomorrow.