Raspberry Pi Forums

Posted: **Sat Feb 22, 2020 9:58 pm**

Greetings,

Here's the environment:
Pi 3B+ Rev 1.3
Buster Desktop (latest stable)
Python 3.7.3
RPi.GPIO==0.7.0
Pillow==5.4.1

Adafruit-Blinka 4.0.0
adafruit-circuitpython-busdevice 4.2.1
adafruit-circuitpython-rgb-display 3.8.9
Adafruit-GPIO 1.0.3
Adafruit-ILI9341 1.5.1
Adafruit-PlatformDetect 2.2.0
Adafruit-PureIO 1.0.4

Here is how I wired it, according to the youtube video which dealt with the same ili9341 board (I can't figure out how to make the editor preserve tabs so, the numbers between the - - s are the pin numbers (not GPIO) for the Raspberry Pi):

https://www.youtube.com/watch?v=I0TMbUpa4ig

HiLetgo Board RPi
Vin -17- 3.3V
GND -14- GND
CLK -23- SLCK
MOSI -19- MOSI
CS -24- CE0
D/C -12- GPIO18 (can be changed)
RST -16- GPIO23 (can be changed)
MISO -21- MISO
LED - 2- 5V

Cloned the Adafruit_Python_ILI9341 git repository and ran the image.py and shapes.py
scripts from the examples, both of which worked.

Both scripts begin with this for modules, wiring (?) and initialization:

Code: Select all

from PIL import Image
import Adafruit_ILI9341 as TFT
import Adafruit_GPIO as GPIO
import Adafruit_GPIO.SPI as SPI

# Raspberry Pi configuration.
DC = 18
RST = 23
SPI_PORT = 0
SPI_DEVICE = 0

# Create TFT LCD display class.
disp = TFT.ILI9341(DC, rst=RST, spi=SPI.SpiDev(SPI_PORT, SPI_DEVICE, max_speed_hz=64000000))

so, one would presume, the references in these examples are to GPIO numbering and that's
why these scripts worked.

I would like to learn the wiring configuration that would work with the Adafruit CircuitPython
resources. Where do I go in the libraries / modules to find out the wiring that those
resources are written for, for this ILI9341 board?

Thanks for any help.

Raspberry Pi Forums

Wiring the HiLetgo ILI9341 to work with Adafruit Circuit Python

Wiring the HiLetgo ILI9341 to work with Adafruit Circuit Python