LEDBoard 1x4 High Density - with TLC5971 16Bit LED-Driver
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README.md

LED-Board 1x4 16bit high density

a LED Board that can be combined seamlessly to bigger lines with very high LED density (= small pixel-pitch).
It uses the TI TLC5971 Constant-Current LED-Driver Chip with 16bit dimming resolution (HTSSOP-20 housing).
The LED-Type used is Nichia NSSM124D - these are available as cut-tape from an distributor.

The thing is designed to be hand-soldered.

Project-Status

  • design phase

TODO

  • fix pads that are to small for hand-soldering
  • order updated PCB's
  • solder some more boards

Technical Information

every controller chip (TLC5971) has 12 ConstantCurrent outputs. so every LED is controllable individual.

HW

  • PCB size: 12 x 8 x 3.3mm
  • pixel-pitch: 3.1mm
  • 3.8V..5.5V
  • <= 0.25A (maximum)

controlling

see LEDBoard_4x4_16bit for more Information

KiCad Version

Application: kicad
Version: 5.0.0-fee4fd1~66~ubuntu18.04.1, release build
Libraries:
    wxWidgets 3.0.4
    libcurl/7.58.0 OpenSSL/1.1.0g zlib/1.2.11 libidn2/2.0.4 libpsl/0.19.1 (+libidn2/2.0.4) nghttp2/1.30.0 librtmp/2.3
Platform: Linux 4.15.0-29-generic x86_64, 64 bit, Little endian, wxGTK
Build Info:
    wxWidgets: 3.0.4 (wchar_t,wx containers,compatible with 2.8) GTK+ 2.24
    Boost: 1.65.1
    OpenCASCADE Community Edition: 6.9.1
    Curl: 7.58.0
    Compiler: GCC 7.3.0 with C++ ABI 1011

Build settings:
    USE_WX_GRAPHICS_CONTEXT=OFF
    USE_WX_OVERLAY=OFF
    KICAD_SCRIPTING=ON
    KICAD_SCRIPTING_MODULES=ON
    KICAD_SCRIPTING_WXPYTHON=OFF
    KICAD_SCRIPTING_ACTION_MENU=ON
    BUILD_GITHUB_PLUGIN=ON
    KICAD_USE_OCE=ON
    KICAD_USE_OCC=OFF
    KICAD_SPICE=ON

License

Creative Commons License
LEDBoard_1x4_16bit_highdensity by Stefan Krüger (s-light) is licensed under a Creative Commons Attribution 4.0 International License .