epaper

README

epaper

epaper is an example of how to display an image to a Waveshare 2.7 inch epaper display hat with the Raspberry Pi 3 B+ written in Golang.

running the demo

Setup

Setup SPI by uncommenting dtparam=spi=on in /boot/config.txt. Then reboot sudo reboot.

Run

Run an epaper example with Golang

go run -mod=vendor ./examples/image

Run epaper with Docker

docker build . -t dmowcomber/epaper
docker run --rm -v /dev/mem:/dev/mem --device /dev/gpiomem --device /dev/spidev0.0 dmowcomber/epaper

Documentation

Index

• type Epaper
  • func New(device *os.File, displayWidth, displayHeight int) *Epaper
  • func (e *Epaper) WriteImage(img *image.Gray)
  • func (e *Epaper) WriteImageQuick(img *image.Gray, x, y int)

Types

type Epaper

type Epaper struct {
	// contains filtered or unexported fields
}

func New

func New(device *os.File, displayWidth, displayHeight int) *Epaper

func (*Epaper) WriteImage

func (e *Epaper) WriteImage(img *image.Gray)

func (*Epaper) WriteImageQuick

func (e *Epaper) WriteImageQuick(img *image.Gray, x, y int)