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#Diy rgb panel how to
#Diy rgb panel serial
#Diy rgb panel for android

#Diy rgb panel for android

The finished RGB LED Matrix looks something like this.Ĭreate an APP for Android using MIT App Inventor 2 Note the connectors for power supply, Bluetooth and USB are placed on the top of the panel for easy access.Īnd finally coming to the front of the matrix, put the polystyrene sheet on the surface of the screen. NOTE: Arduino Nano has +5V auto selector, so don’t care about burning your controller.įinal inside appearance is shown below. Place the components on PCB as shown below. Print the circuit on a paper, transfer it on a PCB and drill small holes on marked places. Now on the other side there are all contacts of rows and columns as show below. Separate each pixel with bulkheads made of same material but colored in white to reflect light. Then connect all rows and columns together. Solder contacts and implement short wires to the other side of the board and use hot glue to make it on place. Then peel off the protective tape and paste each pixel (consisting of 3 LEDs on the LED strip) to panel and drill small holes through R, G, B and V+ metal contacts. You should cut the LED strip consisting of 3 LEDs, Red, Green and Blue respectively, as shown below. First, we will start with the RGB LED Strip.

#Diy rgb panel how to

Let us now take a step-by-step look into how to build the RGB LED Matrix.

By using LED strip, you will get really good brightness of the screen. It is necessary to cut the LED strip into pieces, where every piece has 3 RGB LEDs and acts like one pixel.

#Diy rgb panel serial

It’s based on serial communication with Arduino, but with logic of 3.3V, so it’s recommended to add two resistors, which acts like voltage divider, to adapt voltage levels.įor this project, we have used an RGB LED strip, like the one shown below with 30 LEDs per meter. This module is great for interesting projects controlled by android and it’s really easy to use. Function of this IC is to convert serial to parallel communication for getting more digital output pins, outputs are connected to transistors to drive RGB LEDs. In this project it’s used 4 this ICs which acts like one 32-bit-shift register. 74HC595Nħ4HC595N is 8-bit serial-in, serial or parallel-out shift register with output latches. It has 14 digital I/O and 8 analog pins of which 6 digital pins are used for this project and 1 analog pin is used for temperature reading.

A lot of wires and materials like plywood and polystyrene sheetĪrduino nano is an ATmega Microcontroller based prototyping board.

Each row is further consists of 3 cathode terminals for Red, Green and Blue LEDs. They are organized into 8 rows of Cathode terminals and 6 columns of anode terminals. The second image here shows the layout of the RGB LEDs. The first image shows the connections with respect to the shift registers, how the shift registers are connected to Arduino Nano, source transistors connected to the Columns (assuming Common Anode RGB LEDs) and sinking transistors connected to the Rows of R, G and B LEDs (Cathodes). This is circuit of RGB LED Matrix project.

Create an APP for Android using MIT App Inventor 2.