Smallest NeoPixel RGB LED Controller with IoT

RGB LED lighting is broadly utilized in dwelling automation, good lighting, and inventive tasks. This challenge demonstrates constructing an IoT-enabled RGB LED Controller utilizing the IndusBoard Coin V2 and a WS2812B NeoPixel LED ring.

Key Options:

• Net-Primarily based Management – Change colours, regulate brightness, and management particular person LEDs.
• Customized Animations – Consists of varied lighting results and animation modes.
• Scalable Design – May be tailored to regulate lengthy LED strips as a substitute of a round LED ring.
• Wonderful-Tuned Management – Alter brightness and handle particular person LEDs for custom-made results.

This challenge is right for DIY fanatics, IoT builders, and good dwelling automation tasks.

Use Instances

• Good Residence Lighting: Customise RGB lighting in numerous rooms.
• Interactive Shows: Use NeoPixels for visible results.
• Wearable Tech: Small-scale RGB management for good clothes.
• Artwork Installations: Use animations for aesthetic shows.

Invoice Of Materials

Element	Amount
IndusBoard Coin V2	1
WS2812B NeoPixel LED Ring/Strip	1
Energy Provide (5V, 2A beneficial)	1

Circuit Design

This challenge makes use of the IndusBoard Coin V2, which options 30+ GPIO pins, permitting flexibility in selecting the information pin for the WS2812B NeoPixel LEDs. These LEDs are managed utilizing a single information line, making them straightforward to handle with the onboard microcontroller.

On this setup, the NeoPixel LED strip’s information pin is linked to pin 21 of the IndusBoard. Nonetheless, because the IndusBoard has 30+ I/O pins, you possibly can modify this challenge to regulate a number of LED strips, successfully overlaying a whole dwelling with LED lighting. We’re constructing a controller for a single LED strip for this demonstration, however it will probably all the time be expanded.

Moreover, the IndusBoard Coin V2 features a built-in gentle sensor, which could be built-in into the code for automation options reminiscent of day/evening detection, automated brightness adjustment, and light-based on/off management. Nonetheless, on this challenge, the sunshine sensor just isn’t utilized.

This setup supplies a easy but highly effective basis for good LED lighting and could be simply custom-made for varied functions.

Code Rationalization

Setting Up the IoT RGB LED Controller

Step 1: Set up the Adafruit NeoPixel Library

Earlier than beginning, set up the Adafruit NeoPixel library within the Arduino IDE. Whereas you need to use different libraries, this one is broadly used and simplifies the method.

Step 2: Embrace Crucial Libraries

In the beginning of the code, we embrace important libraries:

• WiFi.h – Handles WiFi connectivity.
• WebServer.h – Units up a easy HTTP net server.
• Adafruit_NeoPixel.h – Controls WS2812B RGB LEDs.

Step 3: Outline Pins and LED Configuration

• LED_PIN is assigned GPIO 21.
• NUM_LEDS is ready to 16 (for a hoop of 16 LEDs).
• The Adafruit_NeoPixel object (strip) is created for controlling the LEDs.

Step 4: Set Up the Net Server

The ESP32-S2 creates a WiFi Entry Level (AP) with the next credentials:

• SSID: ESP32S2_LED_Controller
• Password: 12345678
• A net server is ready up on port 80.

Step 5: Create the Net Web page UI & LED Management Capabilities

The HTML & JavaScript code is embedded to offer a user-friendly interface, permitting customers to:

• Alter RGB colours for particular person LEDs.
• Run predefined animations.
• Work together with an LED ring UI.

Step 6: Powering & Connecting the Board

• Energy the IndusBoard Coin V2 and join the LED strip.
• If the LED strip is small, it may be powered instantly from the IndusBoard.
• For bigger LED strips, use a separate energy supply and join solely the management line to the IndusBoard.

Step 7: Connecting to the Controller & Utilizing the Net UI

1. Open your Wi-Fi settings in your cellphone.
2. Search for the IndusRGB Controller WiFi community.
3. Join utilizing the password 12345678.
4. Open a browser and enter 192.168.4.1 within the deal with bar.
5. Use the net UI to:
   • Choose any coloration from 10+ million colours.
   • Alter brightness.
   • Management particular person LEDs.
   • Run varied lighting animations.