Transcript led_slides - StonedCoder.org

TLC5940 controller / 16 RGB
LEDs
Eric Moore 1/25/2009
http://www.stonedcoder.org/
~druid/balloon/
Files and image of circuit
ALL PIN NUMBERS ARE
SIMPLIFIED
Materials
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1 Breadboard
Jumper cables – either bought or made
1 Arduino
16 RGB LEDs
3 resistors – anything with a k that works
You need a laptop and cable to load the code in to
the arduino. If you haven’t done that before, stop
and follow the tutorials at arduino.cc
Insert chip on board, leave 1 pin
open on the left, and 2 open
between chips – use ruler /
straightedge to bend pins if needed
Note the 2 spaces between chips,
now tie pins 1 and 14 on each chip
to pins 1 and 16 on the opposite
side of the breadboard
Note the yellow lines, now we will
add our power lines to the chip
Insert ties to ground
(7 and 10)
Insert ties to high (8) and connect
SOUT (12) to SIN (3)
Now tie pin 11 to pin 11 on chips 2
and 3
Do the same with pins:
2, 4, 5, and 6
Now pins 1, 2, 3, 4, 5, 6, 7, 8, 10,
and 11 should be connected on the
third chip
When you are done, your board
should look like this, hopefully
cleaner
Tie pin 9 to ground w/ a resistor on
all 3 chips
Arduino time!
Pin 4 on the first chip…
Goes to pin 8 on the ‘duino
Pins 9 and 10 on the ‘duino go to
pins 5 and 6 on the first chip
Arduino 12 goes to chip1 pin2
Arduino 13 goes to chip1 pin3
11 arduino goes to chip1 pin11
Your board
should look like
this
Connect red to anode AKA high (+5
or +3.3)
Connect blue to black cathode AKA
low or ground
Connect to either a
power supply, or
the arduino directly.
Now for the LEDs!
The long leg is the anode, and run
to high.
Bend the anode (long leg) away
from the other legs, making sure
that the pin that is alone on one
side is to your left, and you bend
toward you. This ensures all the
LEDs are in the same order.
Insert the LED into breadboard pins
1-2-3 with anode in the RED bus
15 LEDs later…
Connect the RED bus on one side
of the board with the RED bus you
just inserted all the anodes in to.
All done! Program your arduino and
enjoy!