Introduction: RGB Led Module

Picture of RGB Led Module

This is rgb led module is using diferent scaning that is faster than using 74hc595's
I'm using the propeller microcontroler to drive the display module.

http://www.youtube.com/watch?v=ebptlmE4mbo
for electronic parts goto
www.bkbelectronics.com

Step 1: Layout of Module

Picture of Layout of Module

I used 2ea 74hc193 linked together as a 8 bit t2l counter but I;m only using 6 bits to adress the
four 74hc138 . In the image below you can see the layout of vertical and horozonal map.  

Step 2: Clear Layout of Pcb

Picture of Clear Layout of Pcb

In the pcture below notice there are 8 pnp transistors controlling all 8 common anodes on display
being scaned by a 74hc138 . This is using the upper 3 three bits of 6 bit counter. The lower 3 bits
is controlling the outher 3 74hc138's controling all 24 catodes.

Step 3: Propeller Code

Picture of Propeller Code

There are 8 processors in the propeller called cogs . I'm using 3 cogs -
1 for light engine object
1 for adc / dac
1 for spin code
The demo propeller board (available at parallax)
 Conections are as followed
p0-blue
p1-green
p3-red
p4-clock
p5-reset
5 vdc from demo board
gnd from demo board


Step 4: Light Engine Asm

Picture of Light Engine Asm

The light engine asm object ca deliver 1 million color but it only uses 64 color palette that is changable . The sub also takes care of frameing . Its screen area is located $7f00 - $7f3f .
What changes in that are gets display . At propeller runing at 80Mhz delivers about 20,000
frames per second.

Step 5: ADC - DAC Object

Picture of ADC - DAC Object

The adc-dac gets the sound sample fron the on board mic of the demo board.
Its saves the data at long $7ee0. It is also send the sample out headphohe amp also
on the demo board.

Step 6: O-scope (main SUB)

Picture of O-scope (main SUB)

The o-scope is main runs the display as a bar o-scope in simple spin.

Comments

luizZz1994 (author)2013-04-25

Do you have the circuit and schematic of this proyect? i need it (Y)

terminator_71 (author)2010-04-25

Good job on first instructable.  It's nice to see the Propeller controller being used to drive your interface to the matrix.

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