ReOld//WLED

A lightweight WLED client for legacy Android devices (2.3+). Give your old smartphones a second life as dedicated wall-mounted controllers for your smart LEDs.

This app is based on the open-source WLED project.

Website • Boosty • YouTube: YMP Yuri

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⬇️ DOWNLOAD

Download on GitHub Releases

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Screenshots

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About the Project

ReOld//WLED is a minimalistic application designed to control WLED-powered addressable LED strips on vintage hardware. While the official WLED app requires modern Android versions, this client brings full control to devices as old as Android 2.3 (Gingerbread).

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Brief Information

• Language: Java
• UI: Android Support Library (AppCompat v7, Support v4) for maximum compatibility.
• Communication: HttpURLConnection (JSON API).
• Icons: Material Icons (Google).
• Libraries: com.github.yukuku:ambilwarna:2.0.1.

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Key Features

• Full Synchronization: Automatically fetches the list of effects and palettes from your WLED controller.
• Information Panel: Monitor your controller's FPS, Uptime, Free Heap, Wi-Fi Signal (RSSI), estimated current (mA) and etc.
• Real-time Control: Adjust brightness, speed (Sx), and intensity (Ix) via responsive sliders.
• Color Picker: Integrated color picker dialog for precise color selection.

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Installation & Usage

1. Download the APK from the Releases section.
2. Connect your device to the same Wi-Fi network as your WLED controller.
3. Launch ReOld//WLED and enter the IP address of your controller.
4. Enjoy controlling your lights from your retro device!

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Implementation Details

Sending Commands (AsyncTask & HttpURLConnection)

To support API 9+, the app uses a classic AsyncTask to handle network requests without blocking the UI thread.

private void sendCommand(final String json) {
    new AsyncTask<Void, Void, Void>() {
        @Override protected Void doInBackground(Void... v) {
            try {
                HttpURLConnection c = (HttpURLConnection) new URL("http://" + ip + "/json/state").openConnection();
                c.setRequestMethod("POST");
                c.setDoOutput(true);
                c.getOutputStream().write(json.getBytes("UTF-8"));
                c.getResponseCode();
                c.disconnect();
            } catch (Exception e) { e.printStackTrace(); }
            return null;
        }
    }.execute();
}

State Synchronization (JSON Parsing)

The app fetches the full /json state and dynamically populates UI elements like Spinners and SeekBars.

// Synchronizing effects and UI state
JSONObject d = new JSONObject(jsonResponse);
fill(spinFx, d.getJSONArray("effects")); // Dynamic effect list
JSONObject s = d.getJSONObject("state");
seekBri.setProgress(s.getInt("bri"));    // Sync brightness slider

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Compatibility Table

Feature	Android 2.2	Android 2.3	Android 3.0+
JSON API Sync	N/A	🟩 Full	🟩 Full
Color Picker	N/A	🟩 Full	🟩 Full
Preset Color Selection (RGB buttons)	N/A	🟥 (API 11+ req.)	🟩 Full
Color Picker	N/A	🟩 Full	🟩 Full
Device Diagnostics	N/A	🟩 Full	🟩 Full

• 🟩 Full support
• 🟧 Partial support (works, but with limitations)
• 🟨 Potential crashes (limited stability)
• 🟥 Not supported
• N/A Not tested

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Roadmap

• Implement local IP scanner (Discovery).
• Add support for multiple WLED controllers (Device List).
• Dark Mode for AMOLED-equipped old devices.

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Contacts

• YouTube: YMP Yuri
• Boosty: gachic_the_geek
• Website: ymp-co.github.io

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License

Distributed under the CC-BY 4.0 License.

Other Information

This project was created as part of the "ReOld" series. Bring your old device back to life!

Note: I am a 16-year-old developer. I used a combination of my own logic and AI assistance to optimize the code for very old APIs. This project is in Beta, so please don't judge too harshly - it was built to help the community keep old tech out of landfills!