This Toggle Switch uses the popular Johnson Decade counter IC CD4017. By giving positive pulses to its clock input, the ten outputs of the IC becomes high one by one provided the reset pin is grounded ...

Block diagrams are clear, simple diagrams showing all of the input, process and output elements that make up the system being designed. They are easy to read and show how the circuit will work.

Circuits and Switches Experimenting with batteries, bulbs, buzzers, switches and other electrical components is a great way to learn about circuits and start to think about how to incorporate sounds ...