WLED: Adding Alexa Voice Control

Step 1: Enable Alexa Control in WLED

1. Open the WLED app (or web interface) and navigate to:
   1. Config → Sync Interfaces → Alexa Voice Assistant (scroll down).
2. Check the box to “Emulate Alexa device”.
3. Set a device name (e.g., “Shop Light”).
   1. Alexa will use this name to recognize the light.

Step 2: Ensure Proper Wi-Fi Setup

• Alexa devices must be on 2.4GHz Wi-Fi, not 5GHz.
  • If your router uses both frequencies under the same name (SSID), temporarily disable 5GHz during setup.
• Ensure the ESP32 running WLED is also connected to the same 2.4GHz network.

Step 3: Add WLED to Alexa

1. Open the Amazon Alexa app.
2. Tap Devices (bottom menu).
3. In the top-right corner, tap “+” (Add Device).
4. Select “Light”, then choose “Philips Hue”.
5. When asked “Does your light have Bluetooth?”, select “Yes” (even though WLED is Wi-Fi-based).
6. Tap “Discover Devices”, and wait for Alexa to find your WLED light.
7. Once found, assign it to a room (optional) and tap “Done”.

Step 4: Use Alexa Commands

Once set up, you can control your WLED shop light with commands like:

• “Alexa, turn on the Shop Light.”
• “Alexa, turn off the Shop Light.”
• “Alexa, set Shop Light to 50% brightness.”

Bonus: Create Alexa Routines

To automate lighting, create an Alexa routine:

1. Open Alexa app → Tap More → Routines.
2. Tap “+” → Enter a routine name.
3. Under When this happens, choose Voice and enter a custom phrase (e.g., “Workshop Mode”).
4. Under Add action, select Smart Home → Shop Light → Set brightness (e.g., 100%).
5. Tap Save.

Troubleshooting

• If Alexa doesn’t find the device, try:
  • Restarting your ESP32 and router.
  • Disabling and re-enabling the Alexa emulation setting in WLED.
  • Making sure both Alexa and WLED are on the same 2.4GHz network.
• If voice commands aren’t working, rename the light in WLED settings, then rediscover it in Alexa.