Here’s a simple project for your Halloween celebration ... After successfully building the circuit, we took the project one step further by incorporating an Atmel ATtiny13 microcontroller.

In this installment of Circuit VR, we’ll look at a simple buck converter — that is a switching regulator that takes a higher voltage and produces a lower voltage. The first one won’t ...

Adding more batteries to a simple circuit will increase the electrical energy, which will make a bulb brighter. Electricity can flow through the components in a complete electrical circuit.