Created
May 25, 2021 12:43
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Arduino based water pump timer with signalisation and safety float switch.
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/** | |
* Casovy spinac pro cerpadlo na skluzavku do bazenu. Cerpadlo se zapne na 15s po stisku tlacitka. Kontrolka sviti. Poslednich 5s blika. | |
* Pokud je malo vody (plovakovy spinac), cerpadlo se nezapne a kontrolka blika rychle. | |
*/ | |
#define CAS_ZAPNUTI 15000 //ms | |
#define CAS_BLIKANI 5000 //ms | |
#define CAS_CHYBY 1000 //ms | |
#define BLIKANI_POMALE 500 //ms | |
#define BLIKANI_RYCHLE 100 //ms | |
#define PLOVAK_PIN 3 | |
#define PLOVAK_PULLUP 4 | |
#define CUDLIK_PIN 5 | |
#define CUDLIK_PULLUP 6 | |
#define CERPADLO_PIN 2 | |
#define LED_ON() do{digitalWrite(LED_BUILTIN, HIGH);}while(0) | |
#define LED_OFF() do{digitalWrite(LED_BUILTIN, LOW);}while(0) | |
#define CERPADLO_ZAPNOUT() do{digitalWrite(CERPADLO_PIN, HIGH);}while(0) | |
#define CERPADLO_VYPNOUT() do{digitalWrite(CERPADLO_PIN, LOW);}while(0) | |
#define KONTROLKA_PIN 7 | |
#define KONTROLKA_ON() do{digitalWrite(KONTROLKA_PIN, HIGH);}while(0) | |
#define KONTROLKA_OFF() do{digitalWrite(KONTROLKA_PIN, LOW);}while(0) | |
#define CUDLIK (digitalRead(CUDLIK_PIN) != 0) // cudlik je NC s pullupem | |
#define PLOVAK (digitalRead(PLOVAK_PIN) != 0) // plovak je OK (ma vodu) kdyz je rozepnuty (NC s pullupem) | |
void setup() { | |
// nastaveni vstupu a vystupu | |
pinMode(PLOVAK_PULLUP, OUTPUT); | |
digitalWrite(PLOVAK_PULLUP, HIGH); | |
pinMode(CUDLIK_PULLUP, OUTPUT); | |
digitalWrite(CUDLIK_PULLUP, HIGH); | |
pinMode(PLOVAK_PIN, INPUT); | |
pinMode(CUDLIK_PIN, INPUT); | |
pinMode(CERPADLO_PIN, OUTPUT); | |
CERPADLO_VYPNOUT(); | |
pinMode(LED_BUILTIN, OUTPUT); | |
LED_OFF(); | |
pinMode(KONTROLKA_PIN, OUTPUT); | |
KONTROLKA_OFF(); | |
} | |
void loop() { | |
/*// test vstupu a vystupu | |
if (CUDLIK) { | |
CERPADLO_ZAPNOUT(); | |
KONTROLKA_ON(); | |
} | |
else { | |
CERPADLO_VYPNOUT(); | |
KONTROLKA_OFF(); | |
} | |
if (PLOVAK) LED_ON(); | |
else LED_OFF();*/ | |
static int s = 0; | |
static uint32_t t; | |
switch(s) { | |
case 0: // ceka na cudlik | |
if (CUDLIK) { | |
t = millis(); | |
s = PLOVAK ? 1 : 10; | |
} | |
break; | |
case 1: // zapnuti cerpadla | |
CERPADLO_ZAPNOUT(); | |
KONTROLKA_ON(); | |
s ++; | |
break; | |
case 2: // cerpadlo bezi | |
if (!PLOVAK) | |
s = 10; | |
else if (CUDLIK) { | |
t = millis(); | |
KONTROLKA_ON(); | |
} | |
else { | |
uint32_t dt = millis() - t; | |
if (dt > CAS_ZAPNUTI) { | |
s ++; // timeout -> vypni | |
CERPADLO_VYPNOUT(); | |
KONTROLKA_OFF(); | |
} | |
else if (dt > (CAS_ZAPNUTI - CAS_BLIKANI)) { | |
if (dt / BLIKANI_POMALE & 1) KONTROLKA_ON(); else KONTROLKA_OFF(); | |
} | |
} | |
break; | |
case 3: // vypnout zhasnout a zpet na start | |
if (!CUDLIK) { | |
s = 0; | |
} | |
break; | |
case 10: // chyba plovaku | |
CERPADLO_VYPNOUT(); | |
t = millis(); | |
s ++; | |
case 11: // cekat 2s a uvolneni cudliku, u toho zbesile blikat | |
uint32_t dt = millis() - t; | |
if (dt / BLIKANI_RYCHLE & 1) KONTROLKA_OFF(); else KONTROLKA_ON(); | |
if ((dt > CAS_CHYBY) && (!CUDLIK)) { | |
KONTROLKA_OFF(); | |
s = 0; | |
} | |
break; | |
default: // sem by to nemelo dojit | |
if (!CUDLIK) { | |
KONTROLKA_OFF(); | |
CERPADLO_VYPNOUT(); | |
s = 0; | |
} | |
break; | |
} | |
} |
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