During this month's classes, you'll gain more practice in building electronic circuits. You'll build circuits that light up LEDs and you'll learn how to control brightness the brightness of an LED. This month, we introduce capacitors and show how they function. You'll also learn more about the inner workings of batteries, resistors and LEDs. You'll also learn how to use an electromechanical relay as you build a "red light / green light" game. You'll learn about wattage and the power law formula and how to use it to determine resistor power ratings.