Control NeoPixel RGB LED Color Code Using Keypad and Maker Nano

Introduction

Every NeoPixel LEDs consists of red, green and blue (RGB) LED. Each color produced, there is a color code behind it. In this tutorial, we will develop a kit using Maker Nano to light up RGB LEDs based on the color code and brightness entered from a keypad.

Video

This video shows how to control NeoPixel RGB LED color code using keypad and Maker Nano.

Hardware Preparation

This is the list of items used in the video.

• Maker Nano: Simplifying Arduino for Projects
• IO Expansion Shield for Arduino Nano
• Grove - 16 x 2 LCD (White on Blue)
• Keypad 4x4
• Grove - RGB LED Stick (10 - WS2813 Mini)

Sample Program

This is Arduino sample program to control NeoPixel RGB LED color code using keypad. Please install following library through Library Manager.

• Grove LCD RGB Backlight by Seeed Studio V1.0.0 (Manager)
• Keypad by Mark Stanley V3.1.1 (Manager)
• NeoPixelBus by Makuna V2.5.7 (Manager)

Thank You

References:

• How to convert an hex string to an array of bytes?

Thanks for reading this tutorial. If you have any technical inquiries, please post at Cytron Technical Forum.

"Please be reminded, this tutorial is prepared for you to try and learn.
You are encouraged to improve the code for a better application."