Bundle for Working with Dot Matrix LEDs (with Arduino)
Learn what makes a dot matrix work and how to light one up using an Arduino. You may wonder how it's possible to control 35 individual LEDs on a device that has only 14 pins. This walk-through will help demystify the dot matrix LED.
You May Need
Computer with available USB port and Arduino IDE installed
Arduino Uno R3 DIP Edition (Revision 3)
220 Ohm 1/4 Watt 5% Carbon Film Resistor
2N3904 NPN General Purpose Transistor
1k Ohm 1/4 Watt 5% Resistor Carbon Film
830-Point Solderless Breadboard 6.5" x 2.125"
ZipWire 40 Piece 20cm Male to Male Colored Jumper Wires
9V Battery Snap with 2.1mm Barrel Plug
9V Energizer Alkaline Battery
5x7 LED Dot Matrix Display Red-Orange CC/AR DIP-14