Interfacing Neopixel strip with Arduino-Tinkercad

Updated: Feb 12

#Neopixel LEDs are RGB #LEDs that consist of a built-in Integrated circuit that makes them programmable. The idea was originally coined by Adafruit and today there are many types of Neopixels available in the market. They are:

NeoPixel Strips and Strands.
NeoPixel Rings.
NeoPixel Matrices.
NeoPixel Shields.
Individual NeoPixels.

In this article, we will focus on Neopixel strips and learn how to interface them with the Arduino UNO board using #Tinkercad software.

Components required

a) Arduino UNO board:

#Arduino is an open-source programmable microcontroller that can be programmed to sense and control objects in the physical world. By responding to sensors and inputs the Arduino board can interact with a wide variety of outputs such as LED’s, motors, LCDs etc.

In order to know more about the Arduino UNO, refer to this article.

b) Jumper wires:

Jumper wires are a group of electrical wires, with a connector at each end, which is used to interconnect the components of a prototype circuit.

c) Neopixel strip:

It is a strip of RGB LEDs with a built-in IC that makes it programmable. The Neopixel LED consists of 3 pins:

Ground: This pin is connected to the ground of the circuit.
Data(DIN): This is the Data in the pin which is provided with the PWM signal.
5V: This powers the LED with 5V

Circuit connection

Circuit connection involves the following steps:

The data pin of the Neopixel strip is connected to digital pin 6 of the Arduino board.
The power pin of the Neopixel strip is connected to the 5v pin of the Arduino board.
The ground pin of the Neopixel strip is connected to the ground pin of the Arduino board.

Code-

Working

The circuit is connected and simulated on Tinkercad. The Neopixel strip gives RGB light as output with a delay of 25ms in the direction of the arrows present on the strip.

The red light glows from in the direction of arrows on the Neopixel with a difference of 25ms.

The red light switches off in the direction of arrows on the Neopixel with a difference of 25ms.

The green light glows from in the direction of arrows on the Neopixel with a difference of 25ms.

The green light switches off in the direction of arrows on the Neopixel with a difference of 25ms.

The blue light glows from in the direction of arrows on the Neopixel with a difference of 25ms.

The blue light switches off in the direction of arrows on the Neopixel with a difference of 25ms.

Check the Project Working video here - Interfacing neopixel strip with Arduino || Simulation of Neopixel strip || Electronics || Tinkercad

Project by: LearnElectronics