https://github.com/josverl/micropicodmx

https://github.com/josverl/micropicodmx

dmx micropython rp2040

Last synced: about 2 months ago
JSON representation

• Host: GitHub
• URL: https://github.com/josverl/micropicodmx
• Owner: Josverl
• License: other
• Created: 2023-08-05T15:03:54.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2023-11-29T23:48:41.000Z (about 1 year ago)
• Last Synced: 2024-10-11T22:26:57.260Z (2 months ago)
• Topics: dmx, micropython, rp2040
• Language: Jupyter Notebook
• Homepage:
• Size: 84.5 MB
• Stars: 8
• Watchers: 3
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md
  • License: LICENSE

Awesome Lists containing this project

README

        
MicroPython DMX using Pico PIO

datasheets.raspberrypi.org/rp2040/rp2040-datasheet.pdf

https://datasheets.raspberrypi.com/pico/raspberry-pi-pico-python-sdk.pdf

# 

### Expirimentation 

https://wokwi.com/projects/381858468736889857

online PIO assembler ( c)

https://wokwi.com/tools/pioasm

### Testing with input signals

https://github.com/NathanY3G/rp2040-pio-emulator

- RX: add tests for BREAK , MAB ,Start bits 

todo: 

- RX: bitloop , stop bits 

- RX: End of universe 

- TX: add tests for BREAK , MAB ,Start bits [ bitloop and stop bits ]

- add fuzzing test by varying timing 

### Debugging and input manipultaion 

Based on:

- Communication Engineering I - https://erg.abdn.ac.uk/users/gorry/eg3576/

### Ispired by 

- [jostlowe/Pico-DMX: A library for inputting and outputting the DMX512-A lighting control protocol from a Raspberry Pi Pico (github.com)](https://github.com/jostlowe/Pico-DMX)

PIO code improvements

- DMX timing to account for spec differences between sender and receiver

- rx: timing changes in the bitloop to keep to center of the bits 

- rx: stop bit detection 

- [rp2040-DMA](https://github.com/drtimcollins/RP2040-DMA)

-