defaultTxPin()

int autoresearch::defaultTxPin ( )

constexpr

Definition at line 18 of file AutoResearchPlatform.h.

                             {
#if defined(FL_IS_STUB)
    return 1;  // Stub: TX and RX same pin — NativeRxDevice monitors TX output directly
#elif defined(FL_IS_ESP_32S3)
    return 1;  // ESP32-S3: Connect GPIO 1 (TX) to GPIO 2 (RX) with jumper wire
#elif defined(FL_IS_ESP_32S2)
    return 1;  // ESP32-S2
#elif defined(FL_IS_ESP_32C6)
    return 1;  // ESP32-C6 (RISC-V)
#elif defined(FL_IS_ESP_32C3)
    return 1;  // ESP32-C3 (RISC-V)
#elif defined(FL_IS_ESP_32P4)
    return 5;  // ESP32-P4: Connect GPIO 5 (TX) to GPIO 6 (RX) with jumper wire
#elif defined(FL_IS_TEENSY_4X)
    return 1;  // Teensy 4.x: any GPIO works for TX
#elif defined(FL_IS_ESP_32DEV)
    // ESP32 (classic): GPIO 33 → GPIO 34 jumper. GPIO34 is input-only
    // (no output driver, no boot-strap role) which makes it an ideal RX
    // pin, and 33/34 avoid GPIO0/1/3 (boot strap + UART0, see #3452).
    // The WROOM COM11 bench harness is physically wired 33 → 34
    // (verified electrically in FastLED#3569 — the previously-documented
    // 18 → 19 pair was never connected there).
    return 33;
#else
    return 1;  // Other variants
#endif
}