ESP32: talk to GPS, GSM, or another MCU over UART2
Wire a GPS, GSM, or second microcontroller to the ESP32 over UART2, with working pins, the TX/RX cross, and non-blocking code that parses what comes back.
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Wire a GPS, GSM, or second microcontroller to the ESP32 over UART2, with working pins, the TX/RX cross, and non-blocking code that parses what comes back.