Я на таких платках собираю питание для своих коптеров на Pixhawk совместив ее с линейным стабилизатором. И подключаю их к плате распределения питания с силовым выключателем на транзисторах. Работает очень даже хорошо. Переменник лучше заменить на постоянный резистор.
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