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UART and connection to nRF52833 SoC

Hi

I had a few questions about the nRF52833 SoC. 

1. Is there a better way to transfer information through UART rather than using (printf) or (NRF_LOG_INFO) commands. There seems to be a limit to how much data I can transfer at a time with both these commands. I am doing AoA direction finding and I want to send the I/Q sample data through to my PC. 

2. I have purchased just the nRF52833 SoC, rather than buying the whole nRF52833 DK. Do I have to use another micro like an STM or an ESP32 to communicate to the nRF52833 SoC to transfer this data through SPI or I2C methods?

Thanks

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