Using a second UART

On the ESP32 UART0 is normally reserved for interactive use with REPL. Sometimes we need a UART to communicate with external devices. Typical examples are:

fingerprint readers using a serial communication protocol
GPS modules

The ESP32 has 3 UARTs of which however UART1 is reserved for used

-- Uli Raich - 2020-05-09

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This topic: IoT_Course_English > WebHome > UART
Topic revision: r1 - 2020-05-09 - TWikiAdminUser