DotStarWing < MecrispCube

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---+ !DotStar !FeatherWing

   * https://learn.adafruit.com/adafruit-dotstar-featherwing-adafruit
   * APA102 datasheet https://cdn-learn.adafruit.com/assets/assets/000/084/591/original/APA102_LED.pdf?1574117503

   * DIN D11 -> MOSI
   * CIN D13 -> SCK
   * SPI Mode3 CPOL1 and CPH1 (STM: SPI_POLARITY_HIGH, SPI_PHASE_2EDGE)

   * MSB first, no Chip Select
   * Start Frame 4 Bytes 0x00000000
   * n LED Frames 4 Bytes
      * 1st Byte global Brightness 5 bits, 3 higher bit are 1
      * 2nd Blue
      * 3th Green
      * 4th Red
   * End Frame 4 Bytes 0xFFFFFFFF


-- %USERSIG{PeterSchmid - 2021-05-04}%

---++ Comments

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Topic revision: r3 - 2022-12-04 - PeterSchmid