94 lines
2.4 KiB
Arduino
94 lines
2.4 KiB
Arduino
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#include <Adafruit_NeoPixel.h>
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#ifdef __AVR__
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#include <avr/power.h>
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#endif
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#define LED_PIN 0
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#define RELAY_PIN 1
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#define BAT_PIN 1 // Analog Input 1 = digital PIN 2
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#define VMAX 486 // = ~13.5V avec des résistances de 47k et 10k
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#define V_GREEN 431 // = ~12V tension pour vert pur
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#define VMIN 395 // = ~11 V
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#define V_ALERTE 413 // = ~11.5V provoque clignotement 3 fois rapide
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#define V_OFF 388 // = ~10.8V provoque clignotement pendant 15s puis OFF
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#define OFF_DELAY 15 // delais de clignotement (en secondes) avant extinction à l'atteinte de V_OFF
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#define INIT_BLINK 100
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Adafruit_NeoPixel neopix = Adafruit_NeoPixel(1, LED_PIN, NEO_RGB + NEO_KHZ800);
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byte timer = 100;
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byte low_bat_counter = 0;
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int vbat = 0;
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int red = 0;
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int green = 0;
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bool warned = 0;
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void blink(int n=3, int t=500) {
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for(int i=0;i<n;i++) {
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digitalWrite(RELAY_PIN, LOW);
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delay(t);
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digitalWrite(RELAY_PIN, HIGH);
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delay(t);
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}
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}
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void setup() {
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// This is for Trinket 5V 16MHz, you can remove these three lines if you are not using a Trinket
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#if defined (__AVR_ATtiny85__)
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if (F_CPU == 16000000) clock_prescale_set(clock_div_1);
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#endif
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// End of trinket special code
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pinMode(RELAY_PIN, OUTPUT);
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//pinMode(BAT_PIN, INPUT);
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neopix.begin();
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neopix.show(); // Initialize all pixels to 'off'
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for (int i=0; i<4;i++) {
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neopix.setPixelColor(0, 0, 0, 255);
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neopix.show();
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delay(INIT_BLINK);
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neopix.setPixelColor(0, 0, 0, 0);
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neopix.show();
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delay(INIT_BLINK);
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}
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digitalWrite(RELAY_PIN, HIGH);
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}
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void loop() {
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//Mesure de VBAT : moyenne de 10 mesures à 20ms d'intervale
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vbat =0;
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for(int i=0;i<10;i++) {
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vbat += analogRead(BAT_PIN);
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delay(20);
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}
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vbat /= 10;
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// Calcul de la couleur et affichage sur la neopixel
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red = map(constrain(vbat, VMIN, V_GREEN), VMIN, V_GREEN, 255, 0);
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green = map(constrain(vbat, VMIN, V_GREEN), VMIN, V_GREEN, 0, 255);
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neopix.setPixelColor(0, red, green, 0);
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neopix.show();
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if(vbat<V_ALERTE && !warned) {
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blink();
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warned = 1;
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}
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// Quand on atteint la limite basse, on incrémente un compteur
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if(vbat<VMIN) { low_bat_counter++; }
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// Si le compteur atteint la limite, la faible tension est validée : procédure d'extinction
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if(vbat<VMIN && low_bat_counter>10) {
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blink(OFF_DELAY, 500);
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digitalWrite(RELAY_PIN, LOW);
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while(1);
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}
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delay(1000);
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}
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