led - RS485 bus on raspberry pi extension board to DMX 512 protocol -

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for thesis need change brightness , color of led stripes. in case have use raspberry pi raspberry pi extension board, because board supports rs485 bus system. need reprogramm rs485 bus dmx512 protocoll. problem don't know how this. can please me?

i have written dmx512 receiver raspberry baremetal. maybe helpful you. description : https://sites.google.com/site/rpidmx512/raspberry-pi-dmx512-rdm source code : https://github.com/vanvught/rpidmx512


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