おなじみのSTM32F4-Dsicovery。
https://www.stmcu.jp/design/hwdevelop/discovery/51751/
https://www.st.com/ja/evaluation-tools/stm32f4discovery.html

STネイティブな環境だけでなくmbedやSTM32Duino(STコア)などで利用可能。MicroPythonでも利用できたはず。

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