How to use more digital pins on Arduino Uno?

I need more digital input/output pins on Arduino Uno. How to increase digital pins on Arduino Uno?

Answer

There are several way to add more digital input/output pin on Arduino Uno:

void setup() { pinMode(A5, OUTPUT); // sets the digital pin A5 as output } void loop() { digitalWrite(A5, HIGH); // sets the digital pin A5 on delay(1000); // waits for a second digitalWrite(A5, LOW); // sets the digital pin A5 off delay(1000); // waits for a second }

Buy Arduino

1 × Arduino UNO Buy on Amazon
1 × USB 2.0 cable type A/B Buy on Amazon
1 × Jumper Wires Buy on Amazon
Please note: These are affiliate links. If you buy the components through these links, We may get a commission at no extra cost to you. We appreciate it.

The Best Arduino Starter Kit

※ OUR MESSAGES