inky

A typescript package to interact with Pimoroni's Inky Impression series of displays. Implemenents a subset of the features of @pimoroni/inky

Features

• Support for:
  • Inky Impression 7.3
  • Inky Impression 5.7
  • Inky Impression 4.0
• Individual pixel interaction
• Setting images in:
  • PNG
  • SVG (using optional resvg-js dependency)

Usage

Install inky

• npm install --save @aeroniemi/inky

Setup GPIO

• This package uses rpio for GPIO interactions, so you'll need a working install of that
• In particular, you need to:
  • Disable GPIO interrupts
  • Enable /dev/gpiomem access
  • Run as root user (for access to the SPI device)

(Optional) Setup resvg

• npm install --save @resvg/resvg-js
• If you're using a Raspberry Pi 3/4/Zero 2W it'll probably "just work", but if you're on a Zero or Zero W you'll need to compile resvg to get it to run properly. See this issue for more details on how.

Example

Display a PNG

import { Impression73 } from "@aeroniemi/inky"

async function main() {
    let screen = new Impression73()
    screen.display_png("./[IMAGE.png]")
    await screen.show()
}
main()

Display a SVG

import { Inky_ac } from "@aeroniemi/inky"

async function main() {
    let screen = new Impression73()
    screen.display_svg("./[IMAGE.svg]")
    await screen.show()
}
main()

Display a PNG with Node.js and Javascript

const epaper = require('@aeroniemi/inky');

async function main() {
    let screen = new epaper.Impression57();
    screen.display_png("./[IMAGE.png]");

    // draw white square
    let w = 100;
    let h = 100;
    let sx = 100;
    let sy = 100;
    for (let x = 0; x < w; x++) {
        for (let y = 0; y < h; y++) {
            screen.set_pixel(x + sx, y + sy, 1);
        }
    }
    await screen.show();
}
main();