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Type: Posts; User: bob23

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  1. Is this something that is related to the Teensy...

    Is this something that is related to the Teensy HAL or maybe a Marlin config issue? As in maybe I have more luck with info on their forums?
  2. I looked at the code and can't figure out how to...

    I looked at the code and can't figure out how to define the extra pins provided by the i2c expander chips.
    I made a sketch that blinks one pin on each chip, and I managed to control all of them.
    ...
  3. I first need to see if I can make it work and...

    I first need to see if I can make it work and then I'll see what I do with this project.
    Connectors have SPI/I2C/UART comms and should support most displays. Attached the pinouts for connectors.
  4. marlin 2.0 teensy hal with i2c gpio expander

    Hello all,
    I've been working on a 3D printing shield for Teensy 3.5/3.6.
    Since I wanted to cram more features on the pcb I decided to use 3x pcf8574 (i2c) for STEP/DIR/EN and CS (for spi drivers). ...
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