Comments

ampel-firmware/ampel-firmware.ino

@@ -32,6 +32,7 @@ SCD30 sensor;
 int which_led;
 uint16_t co2;
 
+// The code in setup() will be run once, at startup.
 void setup() {
   // Transmission speed
   Serial.begin(115200);
@@ -48,6 +49,7 @@ void setup() {
   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!