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The Dronacharya
A television in a dark room with amber and blue light from an LED strip behind it spilling onto the wall.
Contents of the DIY Ambilight Builder Kit: a blank ESP32 dev board, a 5 metre WS2812B LED roll, hookup wire and JST connectors, a 60 watt adjustable soldering iron with stand, 63/37 solder wire, flux, heat-resistant gloves, safety glasses, a USB data cable, a 5V 4A adapter, a 330 ohm resistor with a 1000 microfarad capacitor, and a printed QR card.
Tools included.In stock · ships in 2–3 days

DIY Ambilight Builder Kit

Build it yourself. Learn it for life.

₹2,799

GST included · ships pan-India

This is the kit I wish I had when I started. Everything in the plug-and-play box, minus the shortcuts, plus the tools. You flash WLED yourself over USB from a browser, you cut the strip to your TV, you solder the joints and you bridge the corners. It takes an evening. At the end of it you have an ambilight, and — the part that actually matters — you know how it works, so the next time something goes wrong you can fix it instead of replacing it. The 330 Ω resistor and 1000 µF capacitor are in the box because they should be in every build; the guide explains exactly what each one is protecting you from.

Email to order

What's in the box

  • ESP32 dev board (blank — you flash WLED yourself using the guide)
  • 5 m WS2812B addressable LED roll (60 LEDs/m, 300 LEDs)
  • Hookup wires (red / black / green, 22 AWG) + JST 3-pin connectors
  • Soldering iron, 60 W adjustable temperature, with stand
  • Solder wire (63/37 rosin core)
  • Soldering flux
  • Heat-resistant gloves
  • Safety eye-protection glasses
  • USB data cable for flashing the ESP32
  • 5V 4A power adapter with DC barrel connector
  • 330 Ω resistor + 1000 µF capacitor for data-line and power protection

What else you need

  • A TV or monitor, 32" to 75". The kit sticks to the back — it never plugs into the TV, so any brand works.
  • A Windows PC running SignalRGB, but only if you want the lights to follow what is on screen. Everything else works from your phone.
  • 2.4 GHz Wi-Fi. The ESP32 has no 5 GHz radio.

Specifications

The numbers

Solder
63/37 rosin core
Power
5V 4A (20 W) adapter, 5.5 × 2.1 mm DC barrel
Soldering
Yes — about 12 joints
Data pin
GPIO16 (WLED default on ESP32)
Protection
330 Ω series resistor on data, 1000 µF across the 5 V rail
Soldering iron
60 W, adjustable 200–450 °C, with stand
Build time
About 2–3 hours for a first build
Fits
TVs and monitors from 32" to 75"
Flashing
Chrome or Edge over USB — no IDE, no drivers to hunt down
LED strip
WS2812B, 5 m, 60 LEDs/m, 300 LEDs total
Controller
ESP32 DevKit V1, blank — flashed by you at install.wled.me
Safety
Heat-resistant gloves and eye protection included

Before you buy

Questions people actually ask

Questions people actually ask

I have never soldered. Is this too much?
No. It is about twelve joints, all of them on big copper pads, and the guide covers iron temperature, tinning and what a good joint looks like versus a cold one. Practise on the offcut first — you will have plenty. If you are still unsure, the plug-and-play kit is the one to buy.
What is the 330 Ω resistor actually for?
It sits in series on the data line between the ESP32 and the first LED. It damps the reflection on the signal edge, which is what causes random flicker and wrong colours on the first few LEDs. It costs almost nothing and prevents the single most common ambilight complaint.
And the 1000 µF capacitor?
It sits across the 5 V and ground rails near the strip. When 300 LEDs all jump brightness at once the current spike sags the supply for a moment; the capacitor rides that out. Without it you get a visible stutter on fast effects and, in the worst case, a damaged first LED at power-on.
Do I need the Arduino IDE to flash it?
No. WLED installs from a web page — you open install.wled.me in Chrome or Edge, plug the ESP32 in over USB, and click install. It takes about two minutes. The guide has the exact steps, including what to do when the board does not appear in the port list.
Are the tools any good, or are they throwaways?
They are proper entry-level tools, not blister-pack junk — a 60 W adjustable iron with a stand, real 63/37 rosin-core solder and actual flux. They are yours to keep and they will handle your next ten projects.
Can I buy this and still get help?
Yes. Reply to your order email or message @thedronacharya with a photo of your wiring and I will tell you what is wrong. I answer these myself.

Read it before it arrives

The guides for this kit

All free, all complete. Read them now and the box will take half the time.

DIY build150 min

DIY build: flash WLED, wire it properly, solder it once

Flash the ESP32 from a browser, wire 5 V, ground and data with the protection components that actually matter, and make joints that survive.

Sync25 min

Screen sync: SignalRGB + WLED

Make the LEDs follow what is on your screen. Install SignalRGB on Windows, add the WLED device, map the layout, and tune it so it feels instant.

Fixes15 min

Troubleshooting: every failure I have actually seen

Flicker, wrong colours, a dead first LED, Wi-Fi that drops, and the red tint at the far end. What causes each one and how to fix it.