Description: Two LEDs share the same ground pin with one resistor. Each LED turns ON/OFF separately separated by a 1 second delay.
Supplies:
1 – Breadboard 400 Points
1 – Nerdonic Exen Mini
2 – LED
1 – 220 Ohm Resistor
Arduino Code:
#define led1 A1 #define led2 A4 void setup() { pinMode(led1, OUTPUT); pinMode(led2, OUTPUT); } void loop() { digitalWrite(led1, HIGH); digitalWrite(led2, LOW); delay(1000); digitalWrite(led1, LOW); digitalWrite(led2, HIGH); delay(1000); }