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3x3 LED cube

Photo:



Members

  • Michael Rapp, EE/CPE, mrapp17@vt.edu, Sophomore

Mentors

  • Alexis Tuason, EE, katuason@vt.edu, Junior 

Project Overview

Build and implement arduino-controlled 3x3 LED cube. Starting off from a workshop, the objective of this project is to expand on the workshop and learn the basics of micro-controllers, circuits, and program implementation.

Educational Value

  • Multiplexing
  • Function writing/ calling
  • Circuit building with transistors

Tasks

  • Get access to edit page and get page published
    • Contact Will Gerhard
  • Order parts to start cube
    • Look up parts from previous workshop
  • Build the cube
    • Solder certification completed


Design Decisions

Design used from "3x3 LED cube" workshop

BOM + Component costs

 NameProduct ID
 Quantity Price per unit
 Retailer Description
 Arduino Mega 2560 R3
 191 1 $45.95 Adafruit The Arduino Mega 2560 is a microcontroller board based on the ATmega2560. It has 54 digital input/output pins (of which 15 can be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started. The Mega is compatible with most shields designed for the Arduino Duemilanove or Diecimila.
 Super Bright Blue 5mm LED (25 Pack)
 301 2 $8.00 AdafruitPack of 25 clear blue LEDs
5mm diameter
465 nm wavelength
3.2-3.8V Forward Voltage, at 20mA current
6000 mcd typical brightness
Viewing Angle : ±10 degrees
Maximum continuous current: 30mA
 NPN Bipolar Transistor (PN2222)
 756 1 $1.95 Adafruit Each transistor is a general purpose amplifier, model PN2222 (same pinout as the 2N3904) and has a standard EBC pinout. They can switch up to 40V at peak currents of 1A (not continuously, just peak!), with a DC gain of about 100. They're basically your garden-variety NPN, and do the job with class!
Vktech 5pcs 6x8cm Double-Side Prototype PCB Universal Printed Circuit Board 53571-UK1 2 $4.50 Amazon100% Brand new and high quality
6x8CM Double-Side Prototype Board, Lot of 5 PCS.
Grid :about 0.1inch (2.54mm)
Thickness : about1.6mm
Hole diameter : Approx.1.0mm
Dimension:Approx.6x8cm(W*L)
Quantity:5pcs
Material:glass fiber
Color:As shown in the picture
All holes are plated through
Both sides are identical
includes
5x 6*8cm Double-Side Prototype PCB
 Male-Male Jumper
 758 3 $3.95 Adafruit These premium jumper wires are 6" (150mm) long and come in a 'strip' of 40 (4 pieces of each of ten rainbow colors). They have 0.1" male header contacts on either end and fit cleanly next to each other on standard-pitch 0.1" (2.54mm) header. The best part is they come in a 40-pin ribbon cable. You can always pull the ribbon wires off to make individual jumpers, or keep them together to make neatly organized wire harnesses.
 Female - Male Jumper
 8263 $3.95 Adafruit  These premium jumper wires are 6" (150mm) long and come in a 'strip' of 40 (4 pieces of each of ten rainbow colors). They have 0.1" male header contacts on one end and 0.1" female header contacts on the other. They fit cleanly next to each other on standard-pitch 0.1" (2.54mm) header. The best part is they come in a 40-pin ribbon cable. You can always pull the ribbon wires off to make individual jumpers, or keep them together to make neatly organized wire harnesses.
 E-Projects - 22k Ohm Resistors - 1/4 Watt - 5% - 22K (100 Pieces) EP51422K0 1 $4.99 Amazon 100 each 22k ohm resistors.
1/4 watt.
5% tolerance.
Flame retardant coating.
Lead free & RoHS Compliant.
Cut tape packaging.


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