mirror of https://github.com/espruino/BangleApps
New app: hasensors: Home Assistant Sensors
Creates battery level+state sensors in Home Assistant over HTTPpull/2574/head
Richard de Boer
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0.01: New app!
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# Home Assistant Sensors
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Sends sensor values to [Home Assistant](https://www.home-assistant.io/) using
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the [Android Integration](/?id=android).
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It doesn't use the Home Assistant app on your phone, but posts directly to
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Home Assistant, so it only works if Home Assistant can be reached from your phone.
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## Setup
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You need to fill out these fields:
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* *Sensor ID*: This is prefixed to sensor IDs in Home Assistant.
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If you set this to `banglejs`, the battery sensor will be named `sensor.banglejs_battery_level`.
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* *Sensor Name*: This is prefixed to human-friendly sensor names.
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If you set this to `Bangle.js`, the battery sensor will show as `Bangle.js Battery Level`.
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* *Home Assistant URL*: The URL of your Home Assistant Installation.
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* *Authentication Token*: You need to generate a Long-Lived Access Token in
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Home Assistant, at the bottom of [your profile page](https://my.home-assistant.io/redirect/profile/).
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## Features
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Currently creates these sensors:
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* `<sensor id>_battery_level`: Your watch battery level as percentage
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* `<sensor id>_battery_state`: `charging` or `discharging`
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(function () {
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const sb = () => require('hasensors').sendBattery();
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Bangle.on("charging", sb);
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NRF.on("connect", () => setTimeout(sb, 2000));
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setInterval(sb, 10 * 60 * 1000);
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})();
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<html lang="en">
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<head>
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<link rel="stylesheet" href="../../css/spectre.min.css">
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<title>Home Assistant Sensors configuration</title>
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<style>
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label {
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display: block;
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margin-bottom: 1em;
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}
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label span:first-child {
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display: inline-block;
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min-width: 20ex;
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}
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label span.explanation {
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display: block;
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margin-left: 21ex;
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}
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input:invalid {
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outline: 1px solid red;
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background: lightcoral;
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}
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</style>
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</head>
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<body>
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<form id="sensorform">
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<label><span>Sensor ID:</span>
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<input name="id" size="10" value="banglejs" required pattern="[_a-z0-9]+">
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<span class="explanation">Lowercase letters, numbers or underscores.</span></label>
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<label><span>Sensor Name:</span>
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<input name="name" size="10" value="Bangle.js" required>
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<span class="explanation">Human-friendly sensor name.</span></label>
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<label><span>Home Assistant URL:</span>
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<input name="url" type="url" placeholder="http://home_assistant_url:8123" required>
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<span class="explanation">Needs to be reachable by your phone.</span></label>
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<label><span>Authentication Token:</span>
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<input name="token" required pattern="[\-_\.0-9a-zA-Z]+">
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<span class="explanation">Create a long-lived access token in Home Assistant at the bottom of
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<a href="https://my.home-assistant.io/redirect/profile/" target="_blank">your user profile</a>.</span></label>
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</form>
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<p>
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<button id="upload" class="btn btn-primary">Upload</button>
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</p>
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<script src="../../core/lib/customize.js"></script>
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<script>
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const STORAGE_KEY = 'hasensors-config';
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const fields = ['id', 'name', 'url', 'token'];
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const form = document.getElementById('sensorform');
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let stored = localStorage.getItem(STORAGE_KEY);
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if (stored) {
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try {
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stored = JSON.parse(stored);
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} catch (_) {
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stored = undefined;
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}
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}
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if (stored) {
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for (const field of fields) {
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form[field].value = stored[field];
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}
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}
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document.getElementById("upload").addEventListener("click", function () {
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let config = {};
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for (const field of fields) {
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if (!form[field].validity.valid) {
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form[field].focus();
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alert("Please enter a valid " + field);
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return;
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}
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}
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for (const field of fields) {
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config[field] = form[field].value
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}
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console.log('config:', config, JSON.stringify(config));
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localStorage.setItem(STORAGE_KEY, JSON.stringify(config));
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sendCustomizedApp({
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id: "hasensors",
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storage: [
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{name: "hasensors.boot.js", url: "boot.js"},
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{name: "hasensors", url: "lib.js"},
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{name: "hasensors.settings.json", content: JSON.stringify(config)},
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]
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});
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});
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</script>
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</body>
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</html>
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// split out into a separate file to keep bootcode short.
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function s(key) {
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return (require('Storage').readJSON('hasensors.settings.js', true) || {})[key];
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}
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function post(sensor, data) {
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const url = s('url') + '/api/states/sensor.' + s('id') + '_' + sensor;
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Bangle.http(url, {
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method: 'POST',
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body: JSON.stringify(data),
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headers: {
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'Content-Type': 'application/json',
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Authorization: 'Bearer ' + s('token'),
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}
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});
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}
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exports.sendBattery = function () {
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if (!NRF.getSecurityStatus().connected) return;
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post('battery_level', {
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state: E.getBattery(),
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attributes: {
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friendly_name: s('name') + " Battery Level",
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unit_of_measurement: "%",
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device_class: "battery",
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state_class: "measurement",
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}
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});
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post('battery_state', {
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state: Bangle.isCharging() ? 'charging' : 'discharging',
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attributes: {
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friendly_name: s('name') + " Battery State",
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}
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});
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}
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{
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"id": "hasensors",
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"name": "Home Assistant Sensors",
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"shortName": "HA sensors",
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"version": "0.01",
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"description": "Send sensor values to Home Assistant using the Android Integration.",
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"icon": "ha.png",
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"type": "bootloader",
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"tags": "tool,sensors",
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"dependencies": {"android":"app"},
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"supports": ["BANGLEJS","BANGLEJS2"],
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"readme": "README.md",
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"custom": "custom.html",
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"storage": [
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{"name":"hasensors","url":"lib.js"},
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{"name":"hasensors.boot.js","url":"boot.js"}
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],
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"data": [
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{"name":"hasensors.settings.json"}
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]
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}
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