epaper

Project for displaying stories with Pimoroni GFX HAT and Raspberry Pi Zero

These repository contains

Three cpp classes:
- spi_device: uses /dev/spi*.* to comunicate with the display (so the SPI driver must be enabled - see config.txt on raspberry pi)
- gpio_device: direct access to memory to handle the GPIO pins
- graphic_device: class to handle the GFX HAT display, requires spi_device and gpio_device
- epaper: Old class to handle InkyPhat epaper display, not used anymore
Two files from another repository (https://github.com/mattflow/cbmp):
- cbmp.c: i did not write this.
- cbmp.h: i did not write this.

How to build

Clone the repository and run the build.sh by issuing:

bash build.sh

This will generate:

app_DisplayGrid.o: displays a set of axys on the display to check alignment. Does not require any dependencies.
app_DisplayImage.o: displays the image "prova.bmp" to the display. Must be of the right size, if not an error is generated.
app_GraphicTest.o: displays a moving square on the display
app_TestButtonsLeds.o: uses directly i2c to test buttons and leds

Opened issues:

This i'm working on and eventually do and update:

Resource i find useful to build this:

Name		Name	Last commit message	Last commit date
Latest commit History 11 Commits
README.md		README.md
backlight_device.cpp		backlight_device.cpp
backlight_device.h		backlight_device.h
build.sh		build.sh
epaper.cpp		epaper.cpp
epaper.h		epaper.h
gpio_device.cpp		gpio_device.cpp
gpio_device.h		gpio_device.h
graphic_device.cpp		graphic_device.cpp
graphic_device.h		graphic_device.h
i2c_device.cpp		i2c_device.cpp
i2c_device.h		i2c_device.h
io_device.cpp		io_device.cpp
io_device.h		io_device.h
main_DisplayGrid.cpp		main_DisplayGrid.cpp
main_DisplayImage.cpp		main_DisplayImage.cpp
main_GraphicTest.cpp		main_GraphicTest.cpp
main_TestBackLight.cpp		main_TestBackLight.cpp
main_TestButtonsLeds.cpp		main_TestButtonsLeds.cpp
main_TestFull.cpp		main_TestFull.cpp
prova.bmp		prova.bmp
spi_device.cpp		spi_device.cpp
spi_device.h		spi_device.h