ENERGY RING (ESP32 + WLED)

🟣ENERGY RING (ESP32 + WLED)

The Energy Ring is a modern 3D-printed LED indicator lamp powered by an ESP32 running WLED.
Designed to be both stylish and functional, this light ring can sit on your desk, shelf, or nightstand and display any data you want, fully controlled over Wi-Fi, Home Assistant or using the WLED APP

⭐ What It Can Show

The Energy Ring can be mapped to any Home Assistant value or automation, making it incredibly versatile:

• ⚡ Grid import/export status
• 🔋 Battery percentage (home battery, power bank, phone, EV…)
• 🌡 Room temperature or humidity
• 🚗 EV charging status
• 🔥 Solar generation intensity
• 🛎 Doorbell, phone, or app notifications
• 📦 Package delivery alerts
• 🕒 Time-based colour schedules
• 🧠 Pretty much anything Home Assistant can read, this can display!

If you want a visual, ambient way to understand what your smart home is doing — this is it.

⭐ Home Assistant Optional

No smart-home setup? No problem.
Install the WLED app on Android or iOS and use the Energy Ring as a premium RGB lamp:

• Full colour control
• Brightness sliders
• Effects
• Music reactive modes
• Schedules
• Groups
• Wi-Fi control only (no cloud)

⭐ Features

✔ Hidden electronics in the base (standard ESP32 board)
✔ Smooth and even LED diffusion around the full ring
✔ USB-powered
✔ Clean wiring channel through the stem
✔ Modular design for easy assembly
✔ Works with WLED + Home Assistant OR standalone WLED app
✔ Print-friendly model with no supports

⭐ Print Notes

• Diffuser: translucent filament or white (0.8–1.2mm wall)
• Base & body: PLA / PETG
• ESP32 sits inside the lower base section
• LED strip/ring threads through the hollow stem
• The top ring snaps neatly onto the body

Whether you want a visually stunning energy monitor, a battery indicator, a notification lamp, or simply a unique modern LED decor piece, the Energy Ring is both beautiful and infinitely customisable.

 

🌈 100% Customisable

You can swap the colours and thresholds to show:

• Battery percentage
• Room temperature
• EV charging status
• Electricity tariff price
• Doorbell or phone notifications
• Solar production level
• Weather alerts
• Anything Home Assistant can read — the Energy Ring can display!

🛒 Parts You Need to Build the Energy Ring

These are the exact components used in this project:

1️⃣ ESP32 Development Board (WLED Compatible)

This is the Wi-Fi microcontroller that runs WLED and controls the LEDs.

👉 Buy here:
https://www.amazon.co.uk/dp/B0CNYM28CK?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_4

2️⃣ LED Strip → Dupont Adapter (Wiring Converter)

This adapter makes it super easy to connect the LED strip to your ESP32 using standard Dupont jumper wires.
No soldering required — plug-and-play.

👉 Buy here:
https://www.amazon.co.uk/dp/B0DMCM489M?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_1&th=1

3️⃣ WS2812B COB LED Strip (The actual LED lighting)

This is the high-density COB (chip-on-board) WS2812B LED strip that produces the smooth glowing ring effect once placed inside the diffuser.

👉 Buy here:
https://www.amazon.co.uk/dp/B0D5B5CGVX?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_6&th=1

 

📘 Setup & Instructions

🟦 Install WLED on your ESP32

This project uses a standard ESP32 running WLED.
You can flash WLED in under 10 seconds using the official installer:

👉 https://install.wled.me/

Once installed, connect to your Wi-Fi and your Energy Ring will appear on your network as a WLED device.

 

🟡 Home Assistant Automation (Optional)

If you want the Energy Ring to show grid import/export or any energy state, here is the exact YAML automation used for the colour states in the preview images:

 

alias: Energy Ring – Simple Grid Colours (Cyan Low Import)
triggers:
 - entity_id: sensor.grid_power
   trigger: state
actions:
 - choose:
     - conditions:
         - condition: template
           value_template: "{{ grid_power > 50 }}"
       sequence:
         - target:
             entity_id: light.wled
           data:
             rgb_color: [0, 255, 0]       # GREEN
             brightness: 255
             transition: 1
           action: light.turn_on

     - conditions:
         - condition: template
           value_template: "{{ grid_power >= -50 and grid_power <= 50 }}"
       sequence:
         - target:
             entity_id: light.wled
           action: light.turn_off

     - conditions:
         - condition: template
           value_template: "{{ grid_power < -50 and grid_power >= -500 }}"
       sequence:
         - target:
             entity_id: light.wled
           data:
             rgb_color: [0, 255, 255]     # CYAN
             brightness: 255
             transition: 1
           action: light.turn_on

     - conditions:
         - condition: template
           value_template: "{{ grid_power < -500 and grid_power >= -1000 }}"
       sequence:
         - target:
             entity_id: light.wled
           data:
             rgb_color: [255, 165, 0]     # ORANGE
             brightness: 255
             transition: 1
           action: light.turn_on

     - conditions:
         - condition: template
           value_template: "{{ grid_power < -1000 }}"
       sequence:
         - target:
             entity_id: light.wled
           data:
             rgb_color: [255, 0, 0]       # RED
             brightness: 255
             transition: 1
           action: light.turn_on

mode: restart
variables:
 grid_power: "{{ states('sensor.grid_power') | float(0) }}"
 

Boost Me🔥 NEW 3D PRINT: The Energy Ring 🔥
A modern, Wi-Fi controlled LED ring powered by an ESP32 + WLED — and it looks insane on a desk or shelf.

Use it as a Home Assistant indicator to show:
⚡ Grid export/import
🔋 Battery %
🌡 Room temperature
🚗 EV charging status
📱 Phone or doorbell notifications
…or anything you can imagine!

Or skip Home Assistant completely — just use the WLED app on iOS/Android and enjoy it as a super clean RGB lamp.

All electronics hide neatly inside the base.
One USB cab