Create batt_gauge_demo.ino

Battery gauge demo (customize to length of strip)

scmc/batt_gauge_demo.ino

@@ -0,0 +1,37 @@
+#include <FastLED.h>
+#define NUM_LEDS 12
+#define DATA_PIN 14
+#define LOW_BATT 20
+#define MID_BATT 50
+
+
+CRGB leds[NUM_LEDS];
+void setup() {
+  // put your setup code here, to run once:
+  FastLED.addLeds<WS2812B, DATA_PIN, GRB>(leds, NUM_LEDS);//varies
+  Serial.begin(115200);
+  Serial.print("Lit fam :)");
+}
+
+void batt(int percent) {
+  // 
+  memset(leds, CRGB(0, 0, 0), sizeof(leds));
+  int nb = round((float) percent / 100.0 * (float) NUM_LEDS);
+  Serial.println(nb);
+  for (int i = 0; i < nb; i++) {
+    if (percent <= LOW_BATT) {
+      leds[i] = CRGB(255, 0, 0);
+    } else if (percent <= MID_BATT) {
+      leds[i] = CRGB(255, 255, 0);
+    } else {
+      leds[i] = CRGB(0, 255, 0);
+    }
+  }
+  FastLED.show();
+}
+void loop() {
+  for (int j = 0; j < 100; j++) { // loops through animation (100ms steps)
+    batt(j);
+    delay(100);
+  }
+}