{"id":13477,"date":"2017-05-18T18:09:28","date_gmt":"2017-05-18T22:09:28","guid":{"rendered":"http:\/\/embedded-lab.com\/blog\/?p=13477"},"modified":"2023-04-11T22:15:02","modified_gmt":"2023-04-12T02:15:02","slug":"tutorial-9-esp8266-ws2812b-rgb-led-neopixel-ring","status":"publish","type":"post","link":"https:\/\/embedded-lab.com\/blog\/tutorial-9-esp8266-ws2812b-rgb-led-neopixel-ring\/","title":{"rendered":"Tutorial 9: ESP8266 and WS2812B RGB LED (or NeoPixel) ring"},"content":{"rendered":"

This tutorial describes how to interface a WS2812B RGB LED ring or Adafruit’s NeoPixel ring<\/a> to\u00a0ESP8266. The WS2812B is a smart RGB LED with\u00a0a control circuit integrated in a 5050 SMD package.\u00a0The RGB data transfer occurs through a single data input line\u00a0using single NZR communication mode.<\/p>\n

\"EasyESP-1<\/a>

EasyESP-1 driving NeoPixel ring<\/p><\/div>\n

Connection between the NeoPixel ring and ESP8266 is through a single data wire. I am using EasyESP-1 here for illustration. The Data In (DI) line of the\u00a0NeoPixel ring connects to D1 pin of EasyESP-1. VCC and GND pins go to 3.3V and GND terminals of EasyESP-1. I used a 40 RGB LED NeoPixel-compatible LED ring<\/a> from Elecrow for this experiment.<\/p>\n

\"setup\"<\/a>

Wiring RGB LED ring to EasyESP-1<\/p><\/div>\n

\"wiring\"<\/a>

Power supply and data input pins on the back of Elecrow’s RGB LED ring<\/p><\/div>\n

For programming the ESP8266 to drive the RGB ring, you will need to install Adafruit’s NeoPixel Library<\/a><\/strong>. The library comes with several examples which can be tested with the current setup with a very little modification in the code. Once the library is installed, open RGBWstrandtest<\/em><\/strong> example and modify the following two lines as follows:<\/p>\n

#define PIN D1
\n#define NUM_LEDS 40<\/p>\n

That’s all you need to change to run this example with the current setup of the EasyESP-1 and RGB LED ring.<\/p>\n

Note that you must have your Arduino IDE setup to program ESP8266 according to the instructions posted in Tutorial 1: Setting up the Arduino IDE for EasyESP-1<\/a>\u00a0<\/strong>prior to run this example.<\/p>\n

Then upload the modified example code and\u00a0see the output.<\/p>\n

\"v\"<\/a>

RGBWstrandtest output<\/p><\/div>\n

Buy EasyESP-1 board<\/a><\/h4>\n

More tutorials<\/h4>\n

EASYESP-1: A RAPID PROTOTYPING AND DEVELOPMENT BOARD FOR ESP8266<\/a><\/h5>\n
TUTORIAL 1: SETTING UP THE ARDUINO IDE FOR EASYESP-1<\/a><\/h5>\n
TUTORIAL 2: EASYESP-1 \u201cHELLO WORLD\u201d EXAMPLE<\/a><\/h5>\n
TUTORIAL 3: CONNECTING AN OLED DISPLAY TO ESP8266<\/a><\/h5>\n
TUTORIAL 4: WORKING WITH ESP8266 WIFI SCAN CLASS<\/a><\/h5>\n
TUTORIAL 5: SETTING UP AN ESP8266 WEB SERVER<\/a><\/h5>\n
TUTORIAL 6: ESP8266 AND BME280 MAKE A LOCAL\/REMOTE WEATHER STATION<\/a><\/h5>\n
TUTORIAL 7: ESP8266 AND ILI9341 TFT LCD<\/a><\/h5>\n
TUTORIAL 8: ESP8266 INTERNET CLOCK<\/a><\/h5>\n","protected":false},"excerpt":{"rendered":"

This tutorial describes how to interface a WS2812B RGB LED ring or Adafruit’s NeoPixel ring to\u00a0ESP8266. The WS2812B is a smart RGB LED with\u00a0a control circuit integrated in a 5050 SMD package.\u00a0The RGB data transfer occurs through a single data input line\u00a0using single NZR communication mode. Connection between the NeoPixel ring and ESP8266 is through a single data wire. I am using EasyESP-1 here for illustration. The Data In (DI) line of the\u00a0NeoPixel ring connects to D1 pin of EasyESP-1. VCC and GND pins go to 3.3V and GND terminals of EasyESP-1. I used a 40 RGB LED NeoPixel-compatible LED<\/p>\n","protected":false},"author":1,"featured_media":13479,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1603,1044,1464,1466],"tags":[1648,1321,545],"class_list":["post-13477","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-esp8266-tutorials","category-esp8266","category-featured","category-tutorials","tag-easyesp-1","tag-esp8266","tag-rgb-led"],"_links":{"self":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/13477","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/comments?post=13477"}],"version-history":[{"count":5,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/13477\/revisions"}],"predecessor-version":[{"id":15136,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/13477\/revisions\/15136"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/media\/13479"}],"wp:attachment":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/media?parent=13477"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/categories?post=13477"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/tags?post=13477"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}