I would like to ask for your hints regarding the UART communication between 2 STM32 MCUs. Each of the two UARTs on the wildcard is capable of full-duplex communications, meaning that both transmission and reception can occur simultaneously (although the RS485 protocol is half duplex as explained below). ESP32 – IDF Programming Getting Started First we will take the example Program from example directory. The RX TX on the board has LED indicators for easy debugging. There are multiple UART communication pins in the Nucleo F401RE. I use this one from Bray, you may have some other. Both MCP2221 and PICkit Serial Analyzer have mini-USB. All STM32 variants come with internal Flash memory and RAM.
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