Neil Haddley - Developer & Technical Consultant

Gingerbread House

Neil Haddley • December 26, 2023

holiday.py

$ sudo apt-get update

$ sudo apt-get dist-upgrade

$ python -m venv my-env

$ source my-env/bin/activate

$ pip install --upgrade pip setuptools wheel

$ pip install opencv-contrib-python

$ python

>>> import cv2

>>> print(cv2.__version__)

$ pip install --upgrade luma.oled

$ sudo raspi-config

$ curl -o holiday.mp4 https://download-video.akamaized.net/...

$ vi holiday.py

$ python holiday.py

Raspberry Pi Imager

I selected the Micro SD card

I clicked YES to include WIFI and logon credentials

I clicked YES

SD card was moved from Macbook to Raspberry Pi

I plugged in the Raspberry Pi and used ping to access

I connected to the Raspberry Pi using secure shell (ssh)

I executed $ sudo apt-get update

I executed $ sudo apt-get dist-upgrade

I created a python environment, activated the environment and ran pip install$ python -m venv my-env$ source my-env/bin/activate$ pip install --upgrade pip setuptools wheel

I ran $ pip install opencv-contrib-pythonI ran import cv2 to ensure that OpenCV was properly installed

I ran $ pip install --upgrade luma.oledlibrary for the mini oled display

I ran $ sudo raspi-configI selected the Interface Options menu option

I selected the I2C menu option

I selected Yes

I selected Ok

I selected Finish

I downloaded video file from https://pixabay.com/videos/girl-child-snow-snowflakes-window-191152/

I created and ran holiday.pyNotice that the cv.imshow("Img", frame) line is commented out

I wired up two displays

Sweet tooth

Edible Leaves

Raspberry Pi

Invader Zim

Traditional

Bluey

TEXT

1from luma.core.interface.serial import i2c, spi, pcf8574
2from luma.core.interface.parallel import bitbang_6800
3from luma.core.render import canvas
4from luma.oled.device import ssd1306, ssd1309, ssd1325, ssd1331, sh1106, sh1107
5
6from time import sleep
7
8import cv2
9
10# OpenCV follows BGR color convention and PIL follows RGB color convention
11
12# Python Imaging Library
13from PIL import Image
14
15serial = i2c(port=1, address=0x3C)
16device = sh1106(serial)
17
18width =  device.width
19height = device.height
20
21cap = cv2.VideoCapture("holiday.mp4")
22while True:
23    ret, frame = cap.read()
24    if not ret:
25        break
26#    cv2.imshow("Img", frame)
27    
28    color_coverted = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
29    pil_image = Image.fromarray(color_coverted)
30    image_r = pil_image.resize((width,height), Image.LANCZOS) 
31    # Image.BICUBIC is another option
32    image_bw = image_r.convert("1")
33
34    device.display(image_bw)
35
36    key = cv2.waitKey(1)
37    if key == 27:
38        break
39        
40cap.release()
41cv2.destroyAllWindows()