Introduction: Control the RGB LED Lights Using Your Smartphone

About: STEMpedia is a place bringing project-making tools at one place- kits, online courses, coding platforms, controller app and tons of free learning resources.

Who are we? DIYers!

What do we want? To transform the boring TV and computer screens into something chic! When do we want? RIGHT NOW! So, grab some RGB LED strips, an HC-05 Bluetooth, module, and evive and install Dabble in your Smartphone and you’re ready to turn the boring and ordinary into fun and extraordinary! To add that swagger to the screens, download Dabble from HERE.

Ready? Set. Go!

Step 1: Components Required


  • evive
  • RGB LED Strip
  • Bluetooth Module HC05
  • Jumper Cables


All the above components can be found in the STEMpedia Starter Package.

Step 2: Making the Connection

Make the Connection of the RGB LED Strip as shown:

  • GND – GND of evive
  • VCC – +5V of evive
  • DIN – Digital Pin 7 of evive

Step 3: Working

The Android App Dabble on your Smartphone is used to control the RGB LED Strip.

Connect the Bluetooth of your Smartphone with the Bluetooth Module mounted on evive. Open the Gamepad Module.

In the Gamepad module, each button has a different function corresponding to the RGB LED Strip. They are:

  • Up: Rainbow
  • Down: Rainbow Cycle
  • Left: Theaterchase rainbow
  • Right: Theater Chase
  • Circle: Color wipe red
  • Triangle: Color wipe blue
  • Cross: Color wipe yellow
  • Square: Color wipe Sky blue

You can change the color of the strip and the pattern if you want.

Step 4: Code

PictoBlox is a graphical programming software based on Scratch 3.0 that makes learning how to code easy and fun. It allows you to interface and control evive with your computer and even uploads code to it. You can download PictoBlox from here.

Step 5: Conclusion

With this, the Smartphone-controlled RBG backlight is all set to transform your life from boring to vibrant!

Do you know what else is trending among DIYers these days? Our exciting campaign on Indiegogo and all the cool stuff that we have to offer over there! To have a look at it and not miss out on something amazing, visit HERE!