ePaper display driven by a Raspberry Pi Pico

Dejvino 516496c6a1 Readme and image		vor 1 Jahr
.gitignore	Makefile for images. Cleanup.	vor 1 Jahr
Makefile	Makefile - download jokes only once	vor 1 Jahr
README.md	Readme and image	vor 1 Jahr
convert_image.sh	Makefile for images. Cleanup.	vor 1 Jahr
demo.jpg	Readme and image	vor 1 Jahr
display.py	SDCard data loading	vor 1 Jahr
epaper.py	Image centering with limited height caption area	vor 1 Jahr
main.py	Makefile for images. Cleanup.	vor 1 Jahr
microbmp.py	Performance optimization of image loading - inlining	vor 1 Jahr
palette.bmp	Makefile for images. Cleanup.	vor 1 Jahr
sdcard.py	SDCard data loading	vor 1 Jahr
sdcard_test.py	Makefile for images. Cleanup.	vor 1 Jahr
storage.py	SDCard data loading	vor 1 Jahr
test.py	SDCard data loading	vor 1 Jahr

README.md

Pico ePaper Display

Raspberry Pi Pico drawing random images and quotes from an SDCard onto a 7-color epaper display.

Demo

Russian CRT TV converted into an eco-friendly epaper photo frame.

Operation

The Pico randomly picks a BMP file along with a random quote (joke) from the SD card and draws it on the epaper display. Then it enters sleep mode, waits for several minutes and repeats the whole process.

It is ok to remove the SD card while the system is powered on. The card is always mounted anew and there is a fallback when some data is not available.

Build

Parts

Raspberry Pi Pico
5.65 ACeP 7-Color Waveshare ePaper display
SDCard SPI module

Construction

connect the SDCard module via SPI0 (pins 11, 12, 13, 14, 15)
connect the epaper display via SPI1 (pins 16, 17, 18, 19) and pins 8 (DC), 9 (CS), 12 (Reset) and 13 (Busy)

Compile

download some jpg images into the gallery/ folder
run the Makefile via make to convert the images into 7-color bmp files and download a jokes.json file
upload the contents of build/ onto an SD card
flash MicroPython onto the Raspberry Pi Pico
upload the *.py files onto the Pico via Thonny
insert the SDCard into the module
power it up!