Dwarf II

Wrapper functions for Dwarf II (aka Dwarf 2) API V1. This library and the API are a work in progress.

Dwarf Lab's API V1 documentation.

Documentation for this package.

Install

npm install dwarfii_api

Usage

The Dwarf API uses websockets. The URL of the websockets depends on if you use Dwarf wifi or if you use the Dwarf in STA mode.

Example of sending a Goto command using the Dwarf wifi.

import { startGoto, wsURL, DwarfIP, socketSend } from "dwarfii_api";

const socket = new WebSocket(wsURL(DwarfIP));
socket.addEventListener("open", () => {
  let planet = null;
  let RA = 10.6;
  let dec = 41.2;
  let lat = 40.0;
  let lon = 90.0;
  let options = startGoto(planet, RA, dec, lat, lon);
  socketSend(socket, options);
});

socket.addEventListener("message", (event) => {
  let message = JSON.parse(event.data);
  console.log(message);
});

socket.addEventListener("error", (message) => {
  console.log("error:", message);
});

Example of sending a take astro photos command using the Dwarf in STA mode. You need to provide the IP of your Dwarf II.

import {
  wsURL,
  socketSend,
  binning2x2,
  takeAstroPhoto,
  fileFits,
} from "dwarfii_api";

let myIP = "192.123.45.6";
const socket = new WebSocket(wsURL(myIP));
socket.addEventListener("open", () => {
  let RA = 10.6;
  let dec = 41.2;
  let exposure = 10;
  let gain = 60;
  let count = 100;
  let options = takeAstroPhoto(
    RA,
    dec,
    exposure,
    gain,
    binning2x2,
    count,
    fileFits
  );
  socketSend(socket, options);
});

socket.addEventListener("message", (event) => {
  let message = JSON.parse(event.data);
  console.log(message);
});

socket.addEventListener("error", (message) => {
  console.log("error:", message);
});