mirror of
https://github.com/MultiMote/niimbluelib.git
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89 lines
2.4 KiB
Markdown
89 lines
2.4 KiB
Markdown
## NiimBlueLib [](https://npmjs.com/package/@mmote/niimbluelib)
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> [!WARNING]
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>
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> This project is intended for informational and educational purposes only.
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> The project is not affiliated with or endorsed by the original software or hardware vendor,
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> and is not intended to be used for commercial purposes without the consent of the vendor.
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NiimBlueLib is a library for the communication with NIIMBOT printers.
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Project is in Alpha state. Use only exact version when you add it to your project. API can be changed anytime.
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### Usage example
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```js
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import { Utils, RequestCommandId, ResponseCommandId, NiimbotBluetoothClient, ImageEncoder } from "@mmote/niimbluelib";
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const client = new NiimbotBluetoothClient();
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client.addEventListener("packetsent", (e) => {
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console.log(`>> ${Utils.bufToHex(e.packet.toBytes())} (${RequestCommandId[e.packet.command]})`);
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});
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client.addEventListener("packetreceived", (e) => {
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console.log(`<< ${Utils.bufToHex(e.packet.toBytes())} (${ResponseCommandId[e.packet.command]})`);
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});
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client.addEventListener("connect", () => {
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console.log("connected");
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});
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client.addEventListener("disconnect", () => {
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console.log("disconnected");
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});
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client.addEventListener("printprogress", (e) => {
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console.log(`Page ${e.page}/${e.pagesTotal}, Page print ${e.pagePrintProgress}%, Page feed ${e.pageFeedProgress}%`);
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});
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await client.connect();
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// label props
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const props = {
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width: 240,
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height: 96,
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printDirection: "left",
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};
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const quantity = 1;
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const canvas = document.createElement("canvas");
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canvas.width = props.width;
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canvas.height = props.height;
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const ctx = canvas.getContext("2d");
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ctx.fillStyle = "white";
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ctx.lineWidth = 3;
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// fill background
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ctx.fillRect(0, 0, canvas.width, canvas.height);
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// draw diagonal line
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ctx.beginPath();
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ctx.moveTo(0, 0);
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ctx.lineTo(canvas.width, canvas.height);
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ctx.stroke();
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// draw border
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ctx.strokeRect(0.5, 0.5, canvas.width - 1, canvas.height - 1);
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const image = ImageEncoder.encodeCanvas(canvas, props.printDirection);
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await client.abstraction.print(client.getPrintTaskVersion(), image, { quantity });
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try {
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await client.abstraction.waitUntilPrintFinished(quantity);
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} catch (e) {
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console.error(e);
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}
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await client.abstraction.printEnd();
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await client.disconnect();
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```
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### Misc
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Eslint not included. Install it with:
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```
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npm install --no-save --no-package-lock eslint@9.x globals @eslint/js typescript-eslint
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``` |