Mecrisp Forth and its GitHub mirror make a wonderful interactive environment for a range of powerful ARM-based 32-bit µCs. There are a gazillion low-cost STM32F103-based boards available on eBay and AliExpress, such as this one, for example - often called the “Blue Pill”:
But… out of the box, Mecrisp Forth only supports a serial port as console.
Wouldn’t it be nice if we could load an extended version of Mecrisp Forth onto this board, which does console I/O over USB?
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