HardwareSerial:begin() changes RTS and CTS pins preventing detaching those pins #347
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Begin() may undo a setpins() that has set RTS and/or CTS pin. This pins are only changed with RTS and CTS. setpins() can be called after or before begin() when called before, begin() shall not change those pins.
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Begin() may undo a setpins() that has set RTS and/or CTS pin. This pins are only changed with RTS and CTS.
setpins() can be called after or before begin()
when called before, begin() shall not change those pins.