mirror of
https://github.com/adrigongv23/G26---Telemetry-Software.git
synced 2026-08-25 19:43:16 +02:00
62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
#include "ptt.hpp"
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#include "config.hpp"
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#include <Arduino.h>
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static bool stable_pressed = false;
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static bool last_raw_pressed = false;
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static uint32_t last_raw_change_ms = 0;
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bool ptt_init()
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{
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// KEY2 no lleva resistencia pull-up externa, por lo que activamos
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// la pull-up interna. Al pulsar KEY2, GPIO13 queda conectado a GND.
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pinMode(PTT_BUTTON_GPIO, INPUT_PULLUP);
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delay(10);
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last_raw_pressed =
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(digitalRead(PTT_BUTTON_GPIO) == PTT_BUTTON_ACTIVE_LEVEL);
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stable_pressed = last_raw_pressed;
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last_raw_change_ms = millis();
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#if PILOT_DEBUG_SERIAL
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Serial.println("PTT configurado en KEY2 (GPIO13, activo a nivel LOW)");
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Serial.println("DIP: 1=ON, 2=OFF y 4=OFF para usar KEY2 sin conflictos");
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#endif
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return true;
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}
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bool ptt_is_pressed()
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{
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const bool raw_pressed =
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(digitalRead(PTT_BUTTON_GPIO) == PTT_BUTTON_ACTIVE_LEVEL);
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// Reinicia el temporizador cada vez que cambia la lectura instantanea.
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if (raw_pressed != last_raw_pressed) {
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last_raw_pressed = raw_pressed;
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last_raw_change_ms = millis();
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}
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// Solo acepta el nuevo estado cuando se mantiene estable el tiempo
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// indicado. Esto elimina los rebotes mecanicos del pulsador.
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if (stable_pressed != last_raw_pressed &&
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(uint32_t)(millis() - last_raw_change_ms) >= PTT_DEBOUNCE_MS) {
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stable_pressed = last_raw_pressed;
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#if PILOT_DEBUG_SERIAL
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Serial.println(stable_pressed
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? "PTT KEY2 ACTIVADO"
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: "PTT KEY2 DESACTIVADO");
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#endif
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}
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#if PTT_BUTTON_DEBUG
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Serial.print("KEY2 raw=");
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Serial.print(raw_pressed ? "PULSADO" : "LIBRE");
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Serial.print(" estable=");
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Serial.println(stable_pressed ? "PULSADO" : "LIBRE");
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#endif
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return stable_pressed;
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}
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