gpio_sweep.tc

GPIO sweep — togglt jeden freien ESP32-C3 GPIO der Reihe nach,

Source on GitHub

// GPIO sweep — togglt jeden freien ESP32-C3 GPIO der Reihe nach,
// 4 Sekunden pro Pin (zwei Toggles), und loggt vorher welcher
// Pin gerade aktiv ist. Tastkopf ans Mess-Objekt halten, in der
// Tasmota-Konsole mitlesen welcher GPIO gerade an der Reihe ist.
//
// Sweep-Reihenfolge: 0..10 + 18..21 (11..17 sind SPI-Flash, reserviert).

int pins[16];     // GPIO numbers to sweep
int n_pins = 6;   // count of valid entries (high-range only, skipping Bresser SPI)
int idx   = 0;    // current sweep position
int phase = 0;    // 0=announce, 1=high1, 2=low1, 3=high2, 4=low2, then next

void EverySecond() {
    int cur = pins[idx];
    if (phase == 0) {
        addLog("GPIO sweep: NOW probing GPIO%d  ← Tastkopf hier prüfen", cur);
        pinMode(cur, 3);   // 3 = OUTPUT (Arduino-ESP32, INPUT|OUTPUT); 1 was INPUT — bug
        digitalWrite(cur, 1);
        phase = 1;
    } else if (phase == 1) {
        digitalWrite(cur, 0);
        phase = 2;
    } else if (phase == 2) {
        digitalWrite(cur, 1);
        phase = 3;
    } else if (phase == 3) {
        digitalWrite(cur, 0);
        digitalWrite(cur, 0);   // ensure low before moving on
        // back to input to release pin (Hans's transceiver might be
        // driving the same line; avoid output-output conflict on next sweep)
        pinMode(cur, 0);        // 0 = INPUT
        phase = 0;
        idx = idx + 1;
        if (idx >= n_pins) {
            idx = 0;
            addLog("GPIO sweep: --- wrap-around, restarting ---");
        }
    }
}

int main() {
    pins[0] = 8;
    pins[1] = 9;
    pins[2] = 10;
    pins[3] = 18;
    pins[4] = 19;
    pins[5] = 20;
    addLog("GPIO sweep v2: durchläuft GPIO 8, 9, 10, 18, 19, 20 (Bresser-SPI 4-7 übersprungen)");
    return 0;
}