ftc/heater_v3
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Перегрев реле временно отключает нагрев, а не сбрасывает состояние управления

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ftc
2024-10-11 20:52:06 +03:00
parent 4eed014c96
commit 437ea74c17
1 changed files with 18 additions and 9 deletions
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heater_v3.ino
+18 -9
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@@ -32,6 +32,8 @@ DHT dht(DHTPIN, DHTTYPE);
// deviation from target t allowed (in degrees multiplied by 100) // deviation from target t allowed (in degrees multiplied by 100)
#define T_HYSTERESIS 150 #define T_HYSTERESIS 150
// relay cooldown temperature (after what t we allow to turn on relay again) (in degrees multiplied by 100)
#define RELAY_COOLDOWN_T 500
// timeout to switch from external to internal temperature data (in milliseconds) // timeout to switch from external to internal temperature data (in milliseconds)
#define SWITCH_TO_INTERNAL_TIMEOUT 50000 #define SWITCH_TO_INTERNAL_TIMEOUT 50000
@@ -287,7 +289,6 @@ void loop()
{ {
cur_state = 1; cur_state = 1;
} }
else if (current_t > target_t + T_HYSTERESIS) else if (current_t > target_t + T_HYSTERESIS)
{ {
cur_state = 0; cur_state = 0;
@@ -297,14 +298,22 @@ void loop()
{ {
cur_state = override_state; cur_state = override_state;
} }
if (relay_t > CRITICAL_T) if (!overheat)
{ {
//Serial.printf("Critical overheat, t = %d\n", relay_t); if (relay_t > CRITICAL_T)
cur_state = 0; {
overheat = 1; overheat = 1;
} }
else overheat = 0; }
digitalWrite(RELAY_PIN, cur_state); else
{
if (relay_t < CRITICAL_T - RELAY_COOLDOWN_T)
{
overheat = 0;
}
}
if (cur_state && !overheat) digitalWrite(RELAY_PIN, 1);
else digitalWrite(RELAY_PIN, 0);
if (u) if (u)
{ {
Serial.printf("State %d Relay t %d Internal t %d External t %d Current t %d Target t %d\n", cur_state, relay_t, internal_t, external_t, current_t, target_t); Serial.printf("State %d Relay t %d Internal t %d External t %d Current t %d Target t %d\n", cur_state, relay_t, internal_t, external_t, current_t, target_t);