LEDBoard_4x6_p20x5

LED-Board 3d rendering

LEDBoard with 4x6 LEDs
pixel pitch: 20mm x 5mm
LED: Rohm MSL0402RGB (1.8x1.6x0.5mm RGB)
Driver: TI TLC5971 (16bit dimming, constant current driver)

LEDBoard_4x6_p20x5

Project-Status

WIP

design schematics
layout pcb
order pcbs
order parts
solder boards
test
update documentation

Technical Information

there are groups of 4 LEDs that are controlled by one TLC5971.
every controller chip has 12 ConstantCurrent outputs.
so every LED is controllable individual.

mapping

you need to create a mapping to linearize the order:

TODO: test & check if this table is correct

	0	1	2	3
0	IC1 LED1	IC1 LED2	IC4 LED1	IC4 LED2
1	IC1 LED3	IC1 LED4	IC4 LED3	IC4 LED4
2	IC2 LED1	IC2 LED2	IC5 LED1	IC5 LED2
3	IC2 LED3	IC2 LED4	IC5 LED3	IC5 LED4
4	IC3 LED1	IC3 LED2	IC6 LED1	IC6 LED2
5	IC3 LED3	IC3 LED4	IC6 LED3	IC6 LED4

c++ / arduino

const uint8_t channel_position_map[4][4] = {
    { 0,  1, 12, 13},
    { 2,  3, 14, 15},
    { 4,  5, 16, 17},
    { 6,  7, 18, 19},
    { 8,  9, 20, 21},
    {10, 11, 22, 23},
};

HW

PCB size: ?x?x1,6mm
pixel-pitch: 20x5mm
3.8V..5.5V
<= ??A (maximum)

controlling

for arduino you can use ulrichstern/Tlc59711

for other things have a look at LEDBoard_4x4_16bit

License

all files in LEDBoard_4x6_p20x5
by

Stefan Krüger (s-light)

are licensed under a

Creative Commons Attribution 4.0 International License
.

all software parts/files are licensed under MIT.