 hello everyone the festive season has begun and here to stay with it has come time to give your home and office a makeover so let's create some festive decor to make them beautiful and the DIY RGB LED Lenten is a perfect fit for making the Lenten you'll need a Vive and HC05 Bluetooth module a relay RGB LED strips a bulb a bulb holder corrugated sheets bolts a thread electric wires and some jumper cables let's begin first take two corrugated sheets of different colors and cut two squares of size 17 centimeter from each sheet next paste two different colored sheets together using hot glue similarly paste the other two sheets this will act as the top and the base of our Lenten now let's make the structure of our Lenten draw a square of 15 by 15 centimeter on the top and bottom sheets take one of the sheets and mark four holes 7.5 centimeter apart from each other inside the marked square for mounting evive this will be the base then draw a line in the center of the square and make two holes at 5 and 10 centimeter these holes are for passing the thread to hang your Lenten repeat the process for the top to one centimeter slit offset at one corner of both the top and the base for passing the electrical wire take the base and paste four equilateral triangles of side 15 centimeter along the sides of the square month next take four squares of side 15 centimeter and paste them between two adjacent triangles finally take four more equilateral triangles of side 15 centimeter and fix it onto the top and the square corrugated sheet we'll see that the Lenten is getting its shape draw a circle of 1.5 centimeter radius at the center of the top and cut it out for housing the bulk holder pass a thread carefully through the first hole on top and then through the first hole of the base then pass it back to the other hole of the base and then through the second hole of the top next attach evive to the base using 10 mm m3 bolts pass the bolts through the base and match the mounting holes on evive correspondingly pass two wires through the one centimeter slots on the top and the base now let's add the wheel take a piece of the electrical wire and connect the black wire to the comb and the red wire to the end of pin of the wheel to the base using double sided tape now take four 15 plus five centimeter strips of corrugated sheets and paste them to the top hold it through the circle cut on the top and connect the wires to the bulk holder now take the free end of the red wire connected to the relay and the red wire of another electrical wire and connect them to the bulk holder then take both the black wires and connect them together thus making the ground common next fix the bulb into the bulk holder finally paste the top using hot glue now let's add the RGB LED strips at the base take one strip and sold the three jumper cables to it repeat the process for another strip paste the RGB strip on a small piece of corrugated sheet paste two RGB LED strips leaving 5 centimeter from both sides on a 17 by 6 centimeter strip using hot glue repeat for the remaining three sides of the base once done paste the strips to the base now that the structure of our lantern is ready let's make the connections connect the hc05 bluetooth module to the header given on eval now let's connect relay connect the signal pin to evives digital pin 10 connect VCC to plus 5 volt connects ground to ground let's make the connections for the RGB LED strip connect evives VCC ground and signal pins to the breadboard as shown now let's connect the RGB strip connect the VCC pin of the strip to the breadboard then connect the ground pin then connect the signal pin similarly connect the rest of these strips in parallel by referring to the fridging diagram now let's write the code and pick the box you can download it from the link given in the description box we are going to write it in the upload mode the when evive starts up head block will ensure that the code starts executing when evive starts up since we are going to use double to control the lantern will use the blocks from the double palette to write the code you can download the app from the link given in the description box first set the bluetooth board rate according to your requirements by default the relay should be in the off state and the RGB strips should be initialized thus click on the add extension palette and add the lighting extension the first thing we need to control is the bulb if the command received from devil's terminal module is on then the relay should turn on which in turn will switch on the bulb command is off then the relay should be off thus turning off the bulb next we need to control the patterns of the LED strip you can add as many patterns as you want in our case the strip will turn red upon typing red upon typing green yellow upon typing yellow blue upon typing blue upon typing rainbow now that the code is complete upload it to evive using the upload code button and watch the lantern light up the way you want it to on be special don't forget to share with your friends to light up the Diwali and give this video a thumbs up if you have anything that you'd like us to make next let us know in the comment section below and for more such exciting DIY projects subscribe to STEMpedia and follow us on Facebook Instagram and Twitter