Project Hub /Security Surveillance & Defense/Smart Door Lock (Keypad/App/OTP)/ESP8266 and Neopixel LED Strips Based RGB Night Lamp Controlled By Blynk App

Intermediate

ESP8266

₹500 – ₹1,500

3 – 6 Hours

Partial Kit

ESP8266 and Neopixel LED Strips Based RGB Night Lamp Controlled By Blynk App

A Wi-Fi-controlled Iron Man faceplate wall light utilizing an ESP8266 and Neopixel LED strips, fully operable via the Blynk mobile application.

Originally published on CircuitDigest

View original tutorial

Parts You'll Need

This project is sourced from another site, not written by us — this list is our best match of their components against what we stock, not a verified bill of materials. Always check the original blog (linked above) for the actual parts list before buying.

1200mAh 18650 Li-ion Bat – Reliable 3.7V Power Cell Rs. 129.00
Jumper Wire 10 Pin Male To Male 20cm Rs. 45.00
400 Points Mini Solderless Prototype PCB Breadboard High Quality Rs. 89.00
MB102 Adjustable Breadboard Power Supply Module (3.3V & 5V) for Arduino & Raspberry Pi Rs. 139.00
Jumper Wire 10 Pin Male To Female 20cm Rs. 45.00

Selected: Rs. 0.00

We don't carry yet: LED Strip / NeoPixel / WS2812
Voltage Regulator IC (7805 / LM317 / 1117)
Capacitors
DC Barrel Jack / Power Connector
Perfboard / Veroboard / Stripboard
ESP 8266-01

Browse all components

How It Works

This smart RGB night lamp operates by integrating Wi-Fi connectivity with addressable LED control, built around an ESP 8266-01 microcontroller module mounted on a custom-wired perfboard. Power is supplied by a 7.4V 2200mAh Li-Ion battery connected via DC barrel jack connectors, which is then stepped down safely to prevent hardware damage. Because the ESP8266-01 is a sensitive 3.3V logic device, a dual-stage regulation system utilizes a 7805 voltage regulator paired with an LD1117V33 3.3V voltage regulator, alongside a 10uF 63V capacitor for voltage smoothing and stability. Once powered, the ESP8266 connects to a local wireless network using the ESP8266WiFi library, establishing communication with the Blynk App running on a mobile device. Through the Blynk interface, user commands are transmitted to the microcontroller over the internet. The firmware, written in the Arduino IDE using the BlynkSimpleEsp8266 library, processes these inputs and dispatches precise data signals via the FastLED and Adafruit_NeoPixel libraries. These libraries handle the complex timing required to drive the connected Neopixel LED strips, allowing the user to dynamically adjust colors, brightness, and lighting patterns remotely from their smartphone.

Why Build This

Design and program an IoT-connected smart lighting system tailored for undergraduate engineering portfolios and dorm or apartment decor.

Gain practical experience implementing multi-stage power regulation topologies to safely step down 7.4V battery power to stable 5V and 3.3V rails.

Integrate cloud-based mobile application frameworks like Blynk with microcontroller firmware to achieve real-time wireless peripheral control.

Real-World Application

Custom decorative smart home lighting, collectible display lighting, and themed interior decor.

Skills You'll Learn

Wi-Fi microcontroller integration

multi-stage voltage regulation

addressable LED data signal management

mobile-to-hardware IoT cloud communication

perfboard circuit assembly

Safety Precautions

Ensure correct voltage regulation before connecting sensitive 3.3V ESP8266 modules to prevent hardware damage from higher voltage inputs.

Technology Tags

ESP8266

NEOPIXEL

WS2812

BLYNK

IOT

WI-FI

FASTLED

3D PRINTING

RGB LED

Frequently Asked Questions

Can I power the ESP8266-01 directly from the 7.4V Li-Ion battery?

No, doing so will permanently destroy the ESP8266-01 module. You must route the power through the 7805 and LD1117V33 voltage regulators to safely drop the voltage down to 3.3V.

What software environment is required to program the microcontroller?

You will need the Arduino IDE installed on your computer, along with the required libraries including FastLED, Adafruit_NeoPixel, BlynkSimpleEsp8266, and ESP8266WiFi.

How does the mobile phone communicate with the night lamp?

The ESP8266 connects to your local Wi-Fi network and interfaces with the Blynk App cloud servers, translating mobile app inputs into digital control signals for the Neopixel LED strips.

Gallery

This page is part of Kitkraft's Project Hub — a curated collection of electronics & robotics projects gathered from the maker community to help students and hobbyists discover and learn to build. Kitkraft does not claim authorship of the original project, and makes no representation as to the accuracy, completeness or safety of third-party source material. The summary and "How It Works" explanation above are AI-generated, rewritten with reference to the original tutorial — not a reproduction of it. Full credit and a direct link to the original source are provided above. If you're the original creator and have a concern about how your work is represented here, please contact us and we'll address it promptly.

Kitkraft Project Hub — curated from the maker community, credited at the source.

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