First, upload the following PWM sketch to your Arduino Uno r3/Nano v3 and connect a 10mm water-clear green LED to D9. const int ledPin = 9; // Test LED wire to D9 void setup() { // Set the pin as a ...

You can use shift register ICs like 74HC595 to connect more leds and free the pins on your Arduino board. The only interesting part inside the code is at line #18 inside the for() loop where we put ...

This DIY gas leakage detector is designed for educational and basic monitoring purposes. For critical safety applications, ...

If we asked you to light up an LED using an Arduino, there’s a good chance you’d know exactly how to do ... Have the knob mounted to Lexan and then a gear drive to connect the Potentiometer.

Following the circuit around from the pin 13 output we find a resistor, followed by an LED, and then a connection to the Arduino ground. When pin 13 is set to HIGH, +5 volts is supplied through ...

Maker LED display also has Wi-Fi so it can connect to the internet to retrieve and display information. Choose between 32 x 9 pixels or 64 x 9 pixels versions and choose an LED color: white, blue ...