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thomasfla / pico-pio-uart-dma-rs485

Implementing 4x RS485 using pipico PIO and DMA
BSD 3-Clause "New" or "Revised" License
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Transceiver required? #1

Closed metanav closed 10 months ago

metanav commented 10 months ago

Does it work without any RS485 transceiver? I have an ESP32+RS485 module. Can an RP2040 communicate to the module just by connecting the RX/TX pins?

thomasfla commented 10 months ago

Hi,

No you actually need a transceiver to do rs485, to manage direction and differential voltage levels.