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hub75 marquee

working on the marquee onsite

(the rest of the stage)

the back, at home

How to build on linux for raspberry pi

  1. Install the cross-compiler:
apt install gcc-arm-linux-gnueabihf
  1. Install the target:
rustup target add armv7-unknown-linux-gnueabihf
  1. Add a ./cargo/config file with the following contents:
[target.armv7-unknown-linux-gnueabihf]
linker = "arm-linux-gnueabihf-gcc"
  1. Build for rpi:
cargo build --target armv7-unknown-linux-gnueabihf
  1. The binary can be found at target/armv7-unknown-linux-gnueabihf/debug/marquee

Commands that work

sudo ./demo -t 10 -D 1 runtext16.ppm --led-no-hardware-pulse --led-gpio-mapping=adafruit-hat --led-rows=16 --led-cols=32 --led-chain=2 --led-multiplexing=3 --led-row-addr-type=2 --led-brightness=50