IoT Workshop: Lesson 3 – Input Controls Output

In this lesson you will combine the ideas that you learned in the previous lessons (here and here) to make a LED change its brightness based on the level of light available – essentially a nightlight. You will learn a couple of new methods you can use and we’ll discuss Pulse Wave Modulation (PWM) briefly. […]

Arduino: Reading Analog Voltage

In this lesson you will use two resistors – a static resistor and a variable resistor – to create a voltage divider that enables you to effectively understand the intensity of light detected by the photoresistor – essentially a light meter. In the previous lesson you learned how to send OUTPUT and in this lesson […]

Arduino ‘Hello, World!’ – Sending Digital Output

I just posted my first lesson to This is the first in a series of IoT lessons using the Arduino Yun. The lessons will build from this ‘Hello, World!’ lesson to fully connected devices leveraging Cloud IoT services, web and mobile apps, and backend analytics and machine learning. Check out lesson #1 here.