ESP8266 ESP-01 ESP-01S WIFI RGB LED Controller Module Arduino WS2812 - Image 1
ESP8266 ESP-01 ESP-01S WIFI RGB LED Controller Module Arduino WS2812 - Image 2
ESP8266 ESP-01 ESP-01S WIFI RGB LED Controller Module Arduino WS2812 - Image 3
ESP8266 ESP-01 ESP-01S WIFI RGB LED Controller Module Arduino WS2812 - Image 4
ESP8266 ESP-01 ESP-01S WIFI RGB LED Controller Module Arduino WS2812 - Image 5
ESP8266 ESP-01 ESP-01S WIFI RGB LED Controller Module Arduino WS2812 - Image 6
ESP8266 ESP-01 ESP-01S WIFI RGB LED Controller Module Arduino WS2812 - Image 7
ESP8266 ESP-01 ESP-01S WIFI RGB LED Controller Module Arduino WS2812 - Image 8
ESP8266 ESP-01 ESP-01S WIFI RGB LED Controller Module Arduino WS2812 - Image 9
ESP8266 ESP-01 ESP-01S WIFI RGB LED Controller Module Arduino WS2812 - Image 10
ESP8266 ESP-01 ESP-01S WIFI RGB LED Controller Module Arduino WS2812 - Image 11

ESP8266 ESP-01 ESP-01S WIFI RGB LED Controller Module Arduino WS2812

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Description

This nifty little module is quite useful to hook-up your WS2812 based LED setup to your ESP-01S. Can also be used with ESP-01.

The module features:

  • ESP-01S socket – (ESP-01S not included)
  • VCC/GND Pin to supply your LED setup as well as ESP-01S
  • GPIO2 wired to the SIG pin for your LED rig
  • Reset button
  • Wiring harness from module to LED (VCC, GND, SIG). Bare cables (to wire to LED setup) on one side, PH2.0 connector to the module on the other.

Specification:

  • Support for ESP-01S/ESP-01
  • Control Pin: GPIO2
  • Operating Voltage: DC 3.7V-5V
    Please note: The positive supply voltage VCC on the board is connected to the VCC on the WS2812 3PIN connector. If your LED Rig is 5V powered, use a DC 3.7V-5V power supply

📌 Code Examples & Usage – ESP8266 ESP-01 RGB LED Controller Module (WS2812)

📋 Overview

This module combines an ESP8266 ESP-01 / ESP-01S WiFi microcontroller with an onboard RGB LED driver, making it ideal for controlling WS2812 / NeoPixel LED rings and strips over WiFi.

Common applications:

  • WiFi-controlled RGB lighting

  • LED rings & strips (WS2812 / NeoPixel)

  • Smart home lighting

  • DIY ambient lighting

  • IoT light controllers

The module is programmable via the Arduino IDE and supports WiFi, web control, MQTT, and automation platforms.

⚠ IMPORTANT – Read Before Use

🚨 Power and voltage are critical for this module

  • ESP8266 logic voltage: 3.3 V

  • RGB LEDs (WS2812): 5 V power

  • Data signal: 3.3 V (works reliably with WS2812)

  • Do NOT power WS2812 LEDs from the ESP-01 module

✔ Use a separate 5 V supply for LEDs
✔ Always connect GND of ESP-01 and LED power together

🔌 Typical Connections

ESP-01 RGB Controller Module

Signal Function
VCC 3.3 V (ESP8266 power)
GND Ground
DATA WS2812 data output
5V LED+ External 5 V supply
LED GND LED ground

📌 LED power is not provided by the ESP-01

🔌 Recommended Power Setup

  • ESP-01 module: 3.3 V regulated supply

  • WS2812 LEDs: 5 V external supply

  • Add 470–1000 µF capacitor across LED 5 V & GND

  • Optional 330 Ω resistor in series with data line

This greatly improves reliability and LED lifespan.

🛠 Arduino IDE Setup (ESP-01)

1️⃣ Install ESP8266 Board Support

Add this URL in Arduino IDE → Preferences:

http://arduino.esp8266.com/stable/package_esp8266com_index.json

Then install ESP8266 by ESP8266 Community via Boards Manager.

2️⃣ Board Settings

Select:

  • Board: Generic ESP8266 Module

  • Flash Size: 1M (ESP-01S)

  • CPU Frequency: 80 MHz

  • Upload Speed: 115200

📌 GPIO mapping depends on module design — most use GPIO2 for RGB data.

📦 Library Installation

Install Adafruit NeoPixel:

Arduino IDE → Library Manager → Search for Adafruit NeoPixel

🧪 1️⃣ Basic RGB Test (WS2812)

#include <Adafruit_NeoPixel.h>

#define LED_PIN 2 // GPIO2
#define LED_COUNT 16 // Change to suit your ring/strip

Adafruit_NeoPixel strip(LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800);

void setup() {
strip.begin();
strip.show(); // Turn all LEDs off
}

void loop() {
strip.fill(strip.Color(255, 0, 0)); // Red
strip.show();
delay(1000);

strip.fill(strip.Color(0, 255, 0)); // Green
strip.show();
delay(1000);

strip.fill(strip.Color(0, 0, 255)); // Blue
strip.show();
delay(1000);
}

✔ Confirms wiring and power
✔ Works with rings and strips

🌈 2️⃣ Colour Fade Effect

void loop() {
for (int i = 0; i < 255; i++) {
strip.fill(strip.Color(i, 0, 255 - i));
strip.show();
delay(10);
}
}

🌐 3️⃣ Simple WiFi RGB Control (Web Page)

#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>
#include <Adafruit_NeoPixel.h>#define LED_PIN 2
#define LED_COUNT 16

Adafruit_NeoPixel strip(LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800);
ESP8266WebServer server(80);

void handleRoot() {
server.send(200, “text/html”,
“<h1>RGB Control</h1>”
“<a href=’/r’>Red</a><br>”
“<a href=’/g’>Green</a><br>”
“<a href=’/b’>Blue</a>”);
}

void setup() {
strip.begin();
strip.show();

WiFi.begin(“YOUR_WIFI”, “YOUR_PASSWORD”);
while (WiFi.status() != WL_CONNECTED) delay(500);

server.on(“/”, handleRoot);
server.on(“/r”, []() { strip.fill(strip.Color(255,0,0)); strip.show(); server.send(200,“text/plain”,“Red”); });
server.on(“/g”, []() { strip.fill(strip.Color(0,255,0)); strip.show(); server.send(200,“text/plain”,“Green”); });
server.on(“/b”, []() { strip.fill(strip.Color(0,0,255)); strip.show(); server.send(200,“text/plain”,“Blue”); });

server.begin();
}

void loop() {
server.handleClient();
}

✔ Control RGB lights from your phone or browser
✔ Excellent demo for IoT lighting

🧠 ESP-01 / ESP-01S Notes

✔ ESP-01S includes onboard pull-ups (easier flashing)
✔ GPIO0 / GPIO2 must be HIGH at boot
✔ Avoid heavy LED loads on GPIO0
✔ Keep firmware simple — ESP-01 has limited GPIO

Additional information

Weight 40 g
Dimensions 260 × 160 × 20 mm

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