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HomeStatusDisplay

Show status information sent via MQTT (e.g. from FHEM or any other MQTT-speaking system) using RGB LEDs. alt tag

Requirements

Hardware

This code was tested on a Wemos D1 mini ESP8266 board. It should run on any ESP8266 board. You need a number of WS2812B LEDs (e.g. a NeoPixel stripe) connected to 5V, GND and a DATA pin of the ESP. Please notice the wiring tips from Adafruit- use a large capacitor (around 1000uF) between the 5V and GND of the LEDs and put a 300-500 Ohm resistor into the DATA line connection to the LEDs. Here is a overview of the wiring - it is the standard wiring recommended for WS2812B stripes. The board can be powered via a the 5V power supply via the USB port. Of course it should be powerful enough to drive all the LEDs used: alt tag

Software

The code was developed using the Arduino IDE and the ESP8266 library. You need to install the following additional libraries to compile the code:

You also need a running MQTT broker (e.g. https://mosquitto.org), to which the system you want to monitor (e.g. FHEM) pushes its status information. For example, in FHEM the status information which you want to display, can be configured using the FHEM modules MQTT and MQTT_BRIDGE.

How to use

Upon first usage, the system will create an access point. Connect to this access point with any WiFi-capable device and open the page 192.168.4.1. There you will find a configuration page in which you have to enter your settings:

  • WLAN credentials
  • MQTT setup
  • LED setup

You can find more detailed information in the tutorial on my website (it's in German, unfortunately...): http://www.bernd-schubart.de/homestatusdisplay-smart-home-status-immer-im-blick/

About

Show smart home status information sent via MQTT using RGB LEDs.

Topics

adafruitespesp8266fhemhome-automationledsmqttrgb-ledsws2812b

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6 watching

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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Repository files navigation
HomeStatusDisplay
Show status information sent via MQTT (e.g. from FHEM or any other MQTT-speaking system) using RGB LEDs.
alt tag
Requirements
Hardware
This code was tested on a Wemos D1 mini ESP8266 board. It should run on any ESP8266 board. You need a number of WS2812B LEDs (e.g. a NeoPixel stripe) connected to 5V, GND and a DATA pin of the ESP. Please notice the wiring tips from Adafruit- use a large capacitor (around 1000uF) between the 5V and GND of the LEDs and put a 300-500 Ohm resistor into the DATA line connection to the LEDs. Here is a overview of the wiring - it is the standard wiring recommended for WS2812B stripes. The board can be powered via a the 5V power supply via the USB port. Of course it should be powerful enough to drive all the LEDs used:
alt tag
Software
The code was developed using the Arduino IDE and the ESP8266 library. You need to install the following additional libraries to compile the code:
You also need a running MQTT broker (e.g. https://mosquitto.org), to which the system you want to monitor (e.g. FHEM) pushes its status information. For example, in FHEM the status information which you want to display, can be configured using the FHEM modules MQTT and MQTT_BRIDGE.
How to use
Upon first usage, the system will create an access point. Connect to this access point with any WiFi-capable device and open the page 192.168.4.1.
There you will find a configuration page in which you have to enter your settings:
  • WLAN credentials
  • MQTT setup
  • LED setup
You can find more detailed information in the tutorial on my website (it's in German, unfortunately...):
http://www.bernd-schubart.de/homestatusdisplay-smart-home-status-immer-im-blick/
About
Show smart home status information sent via MQTT using RGB LEDs.
Topics
adafruitespesp8266fhemhome-automationledsmqttrgb-ledsws2812b
Resources
Readme
Activity
Stars
23 stars
Watchers
6 watching
Forks
8 forks
Report repository
Releases
Packages
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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Repository files navigation
HomeStatusDisplay
Show status information sent via MQTT (e.g. from FHEM or any other MQTT-speaking system) using RGB LEDs.
alt tag
Requirements
Hardware
This code was tested on a Wemos D1 mini ESP8266 board. It should run on any ESP8266 board. You need a number of WS2812B LEDs (e.g. a NeoPixel stripe) connected to 5V, GND and a DATA pin of the ESP. Please notice the wiring tips from Adafruit- use a large capacitor (around 1000uF) between the 5V and GND of the LEDs and put a 300-500 Ohm resistor into the DATA line connection to the LEDs. Here is a overview of the wiring - it is the standard wiring recommended for WS2812B stripes. The board can be powered via a the 5V power supply via the USB port. Of course it should be powerful enough to drive all the LEDs used:
alt tag
Software
The code was developed using the Arduino IDE and the ESP8266 library. You need to install the following additional libraries to compile the code:
You also need a running MQTT broker (e.g. https://mosquitto.org), to which the system you want to monitor (e.g. FHEM) pushes its status information. For example, in FHEM the status information which you want to display, can be configured using the FHEM modules MQTT and MQTT_BRIDGE.
How to use
Upon first usage, the system will create an access point. Connect to this access point with any WiFi-capable device and open the page 192.168.4.1.
There you will find a configuration page in which you have to enter your settings:
  • WLAN credentials
  • MQTT setup
  • LED setup
You can find more detailed information in the tutorial on my website (it's in German, unfortunately...):
http://www.bernd-schubart.de/homestatusdisplay-smart-home-status-immer-im-blick/
About
Show smart home status information sent via MQTT using RGB LEDs.
Topics
adafruitespesp8266fhemhome-automationledsmqttrgb-ledsws2812b
Resources
Readme
Activity
Stars
23 stars
Watchers
6 watching
Forks
8 forks
Report repository
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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Repository files navigation
HomeStatusDisplay
Show status information sent via MQTT (e.g. from FHEM or any other MQTT-speaking system) using RGB LEDs.
alt tag
Requirements
Hardware
This code was tested on a Wemos D1 mini ESP8266 board. It should run on any ESP8266 board. You need a number of WS2812B LEDs (e.g. a NeoPixel stripe) connected to 5V, GND and a DATA pin of the ESP. Please notice the wiring tips from Adafruit- use a large capacitor (around 1000uF) between the 5V and GND of the LEDs and put a 300-500 Ohm resistor into the DATA line connection to the LEDs. Here is a overview of the wiring - it is the standard wiring recommended for WS2812B stripes. The board can be powered via a the 5V power supply via the USB port. Of course it should be powerful enough to drive all the LEDs used:
alt tag
Software
The code was developed using the Arduino IDE and the ESP8266 library. You need to install the following additional libraries to compile the code:
You also need a running MQTT broker (e.g. https://mosquitto.org), to which the system you want to monitor (e.g. FHEM) pushes its status information. For example, in FHEM the status information which you want to display, can be configured using the FHEM modules MQTT and MQTT_BRIDGE.
How to use
Upon first usage, the system will create an access point. Connect to this access point with any WiFi-capable device and open the page 192.168.4.1.
There you will find a configuration page in which you have to enter your settings:
  • WLAN credentials
  • MQTT setup
  • LED setup
You can find more detailed information in the tutorial on my website (it's in German, unfortunately...):
http://www.bernd-schubart.de/homestatusdisplay-smart-home-status-immer-im-blick/
About
Show smart home status information sent via MQTT using RGB LEDs.
Topics
adafruitespesp8266fhemhome-automationledsmqttrgb-ledsws2812b
Resources
Readme
Activity
Stars
23 stars
Watchers
6 watching
Forks
8 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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platformio.ini
Repository files navigation
HomeStatusDisplay
Show status information sent via MQTT (e.g. from FHEM or any other MQTT-speaking system) using RGB LEDs.
alt tag
Requirements
Hardware
This code was tested on a Wemos D1 mini ESP8266 board. It should run on any ESP8266 board. You need a number of WS2812B LEDs (e.g. a NeoPixel stripe) connected to 5V, GND and a DATA pin of the ESP. Please notice the wiring tips from Adafruit- use a large capacitor (around 1000uF) between the 5V and GND of the LEDs and put a 300-500 Ohm resistor into the DATA line connection to the LEDs. Here is a overview of the wiring - it is the standard wiring recommended for WS2812B stripes. The board can be powered via a the 5V power supply via the USB port. Of course it should be powerful enough to drive all the LEDs used:
alt tag
Software
The code was developed using the Arduino IDE and the ESP8266 library. You need to install the following additional libraries to compile the code:
You also need a running MQTT broker (e.g. https://mosquitto.org), to which the system you want to monitor (e.g. FHEM) pushes its status information. For example, in FHEM the status information which you want to display, can be configured using the FHEM modules MQTT and MQTT_BRIDGE.
How to use
Upon first usage, the system will create an access point. Connect to this access point with any WiFi-capable device and open the page 192.168.4.1.
There you will find a configuration page in which you have to enter your settings:
  • WLAN credentials
  • MQTT setup
  • LED setup
You can find more detailed information in the tutorial on my website (it's in German, unfortunately...):
http://www.bernd-schubart.de/homestatusdisplay-smart-home-status-immer-im-blick/
About
Show smart home status information sent via MQTT using RGB LEDs.
Topics
adafruitespesp8266fhemhome-automationledsmqttrgb-ledsws2812b
Resources
Readme
Activity
Stars
23 stars
Watchers
6 watching
Forks
8 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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Repository files navigation
HomeStatusDisplay
Show status information sent via MQTT (e.g. from FHEM or any other MQTT-speaking system) using RGB LEDs.
alt tag
Requirements
Hardware
This code was tested on a Wemos D1 mini ESP8266 board. It should run on any ESP8266 board. You need a number of WS2812B LEDs (e.g. a NeoPixel stripe) connected to 5V, GND and a DATA pin of the ESP. Please notice the wiring tips from Adafruit- use a large capacitor (around 1000uF) between the 5V and GND of the LEDs and put a 300-500 Ohm resistor into the DATA line connection to the LEDs. Here is a overview of the wiring - it is the standard wiring recommended for WS2812B stripes. The board can be powered via a the 5V power supply via the USB port. Of course it should be powerful enough to drive all the LEDs used:
alt tag
Software
The code was developed using the Arduino IDE and the ESP8266 library. You need to install the following additional libraries to compile the code:
You also need a running MQTT broker (e.g. https://mosquitto.org), to which the system you want to monitor (e.g. FHEM) pushes its status information. For example, in FHEM the status information which you want to display, can be configured using the FHEM modules MQTT and MQTT_BRIDGE.
How to use
Upon first usage, the system will create an access point. Connect to this access point with any WiFi-capable device and open the page 192.168.4.1.
There you will find a configuration page in which you have to enter your settings:
  • WLAN credentials
  • MQTT setup
  • LED setup
You can find more detailed information in the tutorial on my website (it's in German, unfortunately...):
http://www.bernd-schubart.de/homestatusdisplay-smart-home-status-immer-im-blick/
About
Show smart home status information sent via MQTT using RGB LEDs.
Topics
adafruitespesp8266fhemhome-automationledsmqttrgb-ledsws2812b
Resources
Readme
Activity
Stars
23 stars
Watchers
6 watching
Forks
8 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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README.md
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platformio.ini
Repository files navigation
HomeStatusDisplay
Show status information sent via MQTT (e.g. from FHEM or any other MQTT-speaking system) using RGB LEDs.
alt tag
Requirements
Hardware
This code was tested on a Wemos D1 mini ESP8266 board. It should run on any ESP8266 board. You need a number of WS2812B LEDs (e.g. a NeoPixel stripe) connected to 5V, GND and a DATA pin of the ESP. Please notice the wiring tips from Adafruit- use a large capacitor (around 1000uF) between the 5V and GND of the LEDs and put a 300-500 Ohm resistor into the DATA line connection to the LEDs. Here is a overview of the wiring - it is the standard wiring recommended for WS2812B stripes. The board can be powered via a the 5V power supply via the USB port. Of course it should be powerful enough to drive all the LEDs used:
alt tag
Software
The code was developed using the Arduino IDE and the ESP8266 library. You need to install the following additional libraries to compile the code:
You also need a running MQTT broker (e.g. https://mosquitto.org), to which the system you want to monitor (e.g. FHEM) pushes its status information. For example, in FHEM the status information which you want to display, can be configured using the FHEM modules MQTT and MQTT_BRIDGE.
How to use
Upon first usage, the system will create an access point. Connect to this access point with any WiFi-capable device and open the page 192.168.4.1.
There you will find a configuration page in which you have to enter your settings:
  • WLAN credentials
  • MQTT setup
  • LED setup
You can find more detailed information in the tutorial on my website (it's in German, unfortunately...):
http://www.bernd-schubart.de/homestatusdisplay-smart-home-status-immer-im-blick/
About
Show smart home status information sent via MQTT using RGB LEDs.
Topics
adafruitespesp8266fhemhome-automationledsmqttrgb-ledsws2812b
Resources
Readme
Activity
Stars
23 stars
Watchers
6 watching
Forks
8 forks
Report repository
Releases
Packages
Contributors
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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HomeStatusDisplay
Show status information sent via MQTT (e.g. from FHEM or any other MQTT-speaking system) using RGB LEDs.
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Requirements
Hardware
This code was tested on a Wemos D1 mini ESP8266 board. It should run on any ESP8266 board. You need a number of WS2812B LEDs (e.g. a NeoPixel stripe) connected to 5V, GND and a DATA pin of the ESP. Please notice the wiring tips from Adafruit- use a large capacitor (around 1000uF) between the 5V and GND of the LEDs and put a 300-500 Ohm resistor into the DATA line connection to the LEDs. Here is a overview of the wiring - it is the standard wiring recommended for WS2812B stripes. The board can be powered via a the 5V power supply via the USB port. Of course it should be powerful enough to drive all the LEDs used:
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Software
The code was developed using the Arduino IDE and the ESP8266 library. You need to install the following additional libraries to compile the code:
You also need a running MQTT broker (e.g. https://mosquitto.org), to which the system you want to monitor (e.g. FHEM) pushes its status information. For example, in FHEM the status information which you want to display, can be configured using the FHEM modules MQTT and MQTT_BRIDGE.
How to use
Upon first usage, the system will create an access point. Connect to this access point with any WiFi-capable device and open the page 192.168.4.1.
There you will find a configuration page in which you have to enter your settings:
  • WLAN credentials
  • MQTT setup
  • LED setup
You can find more detailed information in the tutorial on my website (it's in German, unfortunately...):
http://www.bernd-schubart.de/homestatusdisplay-smart-home-status-immer-im-blick/
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Show smart home status information sent via MQTT using RGB LEDs.
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adafruitespesp8266fhemhome-automationledsmqttrgb-ledsws2812b
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