Binary clock

ampel-firmware/ampel-firmware.ino

@@ -15,22 +15,17 @@
 // Required libraries:
 //  LED Ring:
 #include "src/lib/Adafruit_NeoPixel/Adafruit_NeoPixel.h"
-//  CO2 sensor:
-#include "src/lib/SparkFun_SCD30_Arduino_Library/src/SparkFun_SCD30_Arduino_Library.h"
-#include <Wire.h>
 
 // How many LEDs on the ring?
-const int LED_COUNT = 12;
+const int LED_COUNT = 16;
 // Where is LED ring connected to micro-controller?
 const int NEOPIXELS_PIN = 5;
 
 // Define LED ring and CO2 sensor
 Adafruit_NeoPixel led_ring(LED_COUNT, NEOPIXELS_PIN, NEO_GRB + NEO_KHZ800);
-SCD30 sensor;
 
 // Define variables
-int which_led;
-uint16_t co2;
+uint32_t n;
 
 // The code in setup() will be run once, at startup.
 void setup() {
@@ -41,46 +36,26 @@ void setup() {
   led_ring.begin();
   led_ring.setBrightness(255);
 
-  // Initialize sensor (should be connected to D6 & D5), without auto-calibration.
-  Wire.begin(12, 14);
-  sensor.begin(false);
-
-  // One measurement every 10s
-  sensor.setMeasurementInterval(10);
 }
 
 // The code in loop() will be run as long as the micro-controller is powered up, in an infinite loop.
 void loop() {
-  if (sensor.dataAvailable()) {
-    // New measurement is available. Let's display it!
-    co2 = sensor.getCO2();
-    Serial.print("CO2 : ");
-    Serial.print(co2);
-    Serial.println(" ppm.");
-  }
-
-  // Light the next LED
-  which_led = which_led + 1;
-  // Come back to first LED if needed.
-  if (which_led >= LED_COUNT) {
-    which_led = 0;
-  }
-
   // First, disable every LED
   led_ring.clear();
   // Check if air is good enough
-  if (co2 <= 1000) {
-    // Light the LED green if CO2 ppm is low
-    //                   position, red, green, blue
-    led_ring.setPixelColor(which_led, 0, 255, 0);
-  } else {
-    // Red otherwise.
-    //                   position, red, green, blue
-    led_ring.setPixelColor(which_led, 255, 0, 0);
+  for (int i = 0; i < LED_COUNT; ++i) {
+    if ((n >> i) & 1) {
+      led_ring.setPixelColor(i, 0, 255, 0);
+//      led_ring.setPixelColor(i, led_ring.ColorHSV(i * 65535 / 16));
+    }
   }
+  Serial.print(n);
+  Serial.print(" = ");
+  Serial.println(n, BIN);
   led_ring.show();
+  n = n + 1;
 
   // Wait half a second before next loop.
   // Micro-controller might crash if it has too much work to do. Please don't remove it!
-  delay(500);
+  delay(1000);
 }