Description: A Speaker 8 Ohm .5W connected to 4 LEDs and a Seeeduino Xiao plays a European Ambulance sound effect while also flashing ON/OFF the blue LEDs.
Supplies:
1 – Breadboard 400 Points
1 – Seeeduino Xiao >> Link <<
1 – Speaker 8 Ohm .5W >> Link <<
4 – LED
1 – 220 Ohm Resistor
Arduino Code:
int speaker = 9; #define led1 0 #define led2 1 #define led3 3 #define led4 2 void setup() { pinMode(led1, OUTPUT); pinMode(led2, OUTPUT); pinMode(led3, OUTPUT); pinMode(led4, OUTPUT); } void loop() { tone(speaker, 10); digitalWrite(led1, HIGH); digitalWrite(led2, HIGH); digitalWrite(led3, HIGH); digitalWrite(led4, HIGH); delay(1000); tone(speaker, 30); digitalWrite(led1, LOW); digitalWrite(led4, LOW); delay(1000); }